Planck Scale Cosmology and Resummed Quantum Gravity (2009)
We show that, by using amplitude-based resummation techniques for Feynman's formulation of Einstein's theory, we get quantum field theoretic 'first principles' predictions for the UV fixed-point...
HERWIRI1.0(2): MC Realization of IR-Improvement for DGLAP-CS Parton Showers (2009)
Ward, B. F. L., Joseph, S., Majhi, S., Yost, S. A.
We have implemented the new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us in the HERWIG6.5 environment to generate a new...
On the Running of the Cosmological Constant in Quantum General Relativity (2009)
We present arguments that show what the running of the cosmological constant means when quantum general relativity is formulated following the prescription developed by Feynman.
HERWIRI1.0: MC Realization of IR-Improved DGLAP-CS Parton Showers (2009)
Joseph, S., Majhi, S., Ward, B. F. L., Yost, S. A.
We present Monte Carlo data showing the comparison between the parton shower generated by the standard DGLAP-CS kernels and that generated with the new IR-improved DGLAP-CS kernels recently developed...
Jung, H., De Roeck, A., Ajaltouni, Z. J., Albino, S., Altarelli, G., Ambroglini, F., ...
2nd workshop on the implications of HERA for LHC physics. Working groups: Parton Density Functions Multi-jet final states and energy flows Heavy quarks (charm and beauty) Diffraction Cosmic Rays...
Bytev, V. V., Kalmykov, M., Kniehl, B. A., Ward, B. F. L., Yost, S. A.
We describe the application of differential reduction algorithms for Feynman Diagram calculation. We illustrate the procedure in the context of generalized hypergeometric functions, and give an...
Feynman Diagrams, Differential Reduction, and Hypergeometric Functions (2009)
Kalmykov, M. Yu., Bytev, V. V., Kniehl, Bernd A., Ward, B. F. L., Yost, S. A.
We will present some (formal) arguments that any Feynman diagram can be understood as a particular case of a Horn-type multivariable hypergeometric function. The advantages and disadvantages of this...
Hypergeometric functions, their epsilon expansions and Feynman diagrams (2008)
Kalmykov, M. Yu., Kniehl, Bernd A., Ward, B. F. L., Yost, S. A.
We review the hypergeometric function approach to Feynman diagrams. Special consideration is given to the construction of the Laurent expansion. As an illustration, we describe a collection of...
Towards Exact Quantum Loop Results in the Theory of General Relativity: Status and Update (2008)
We present the status and update of a new approach to quantum general relativity as formulated by Feynman from the Einstein-Hilbert action wherein amplitude-based resummation techniques are applied...
Ward, B. F. L., Joseph, S., Majhi, S., Yost, S. A.
We summarize the recent progress in a new approach to precision LHC physics based on the IR-improved DGLAP-CS theory as it relates to a new MC friendly exponentiated scheme for precision calculation...
Planck Scale Cosmology in Resummed Quantum Gravity (2008)
We show that, by using resummation techniques based on the extension of the methods of Yennie, Frautschi and Suura to Feynman's formulation of Einstein's theory, we get quantum field theoretic...
Precision QEDXQCD Resummation Theory for LHC Physics: Status and Update (2008)
Ward, B. F. L., Joseph, S., Majhi, S., Yost, S. A.
We present the elements of the IR-improved DGLAP-CS theory as it relates to the new MC friendly exponentiated scheme for precision calculation of higher order corrections to LHC physics in which IR...
Yost, S. A., Kalmykov, M. Yu., Ward, B. F. L.
Hypergeometric functions provide a useful representation of Feynman diagrams occuring in precision phenomenology. In dimension regularization, the epsilon-expansion of these functions about d=4 is...
We review the application of exact, amplitude-based, YFS-syle resummation in quantum field theory via Monte Carlo methods.
We present the recent developments in exact amplitude-based resummation methods for non-Abelian gauge theories as they relate to precision LHC physics. We discuss QEDXQCD exponentiation, shower/ME...
Kalmykov, M. Yu., Ward, B. F. L., Yost, S. A.
We continue our study of the construction of analytical coefficients of the epsilon-expansion of hypergeometric functions and their connection with Feynman diagrams. In this paper, we apply the...
Kalmykov, M. Yu., Ward, B. F. L., Yost, S. A.
We continue the study of the construction of analytical coefficients of the epsilon-expansion of hypergeometric functions and their connection with Feynman diagrams. In this paper, we show the...
IR-Improved DGLAP Theory: Kernels, Parton Distributions, Reduced Cross Sections (2007)
It is shown that exact, amplitude-based resummation allows IR-improvement of the usual DGLAP theory. This results in a new set of kernels, parton distributions and attendant reduced cross sections,...
Quark Masses and Resummation in Precision QCD Theory (2007)
It is shown that amplitude-based, exact resummation tames the un-cancelled IR divergences at O(alpha_s^2) in initial state radiation in QCD with massive quarks. Implications for precision predictions...
QED x QCD Resummation and Shower/ME Matching for LHC Physics (2007)
We present the theory of QED x QCD resummation and its interplay with shower/matrix element matching in precision LHC physics scenarios. We illustrate the theory using single heavy gauge boson...
Kalmykov, M. Yu., Ward, B. F. L., Yost, S.
It is proved that the Laurent expansion of the following Gauss hypergeometric functions, 2F1(I1+a*epsilon, I2+b*ep; I3+c*epsilon;z), 2F1(I1+a*epsilon, I2+b*epsilon;I3+1/2+c*epsilon;z),...
QED X QCD Exponentiation: Shower/ME Matching and IR-Improved DGLAP Theory at the LHC (2006)
We discuss the elements of QED X QCD exponentiation and its interplay with shower/ME matching and IR-improved DGLAP theory in precision LHC physics scenarios. Applications to single heavy gauge boson...
Resummed Quantum Gravity (2006)
We present the current status of the a new approach to quantum general relativity based on the exact resummation of its perturbative series as that series was formulated by Feynman. We show that the...
We discuss techniques for obtaining a numerically-stable evaluation of the fully differential cross section for the virtual photon correction to single hard photon bremsstrahlung in two different...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Exact Quantum Loop Results in the Theory of General Relativity (2006)
We present a new approach to quantum general relativity based on the idea of Feynman to treat the graviton in Einstein's theory as a point particle field subject to quantum fluctuations just as any...
Planck Scale Remnants in Resummed Quantum Gravity (2006)
We show that, in a new approach to quantum gravity in which its UV behavior is tamed by resummation of large IR effects, the final state of the Hawking radiation for an originally very massive black...
Jadach, Stanislaw, Ward, B F L, Yost, S A
We compare fully differential exact results for the virtual photon correction to single hard photon bremsstrahlung obtained using independent calculations, both for electron-positron annihilation at...
Jadach, S., Ward, B. F. L., Yost, S. A.
We compare fully differential exact results for the virtual photon correction to single hard photon bremsstrahlung obtained using independent calculations, both for electron-positron annihilation at...
We describe radiative corrections to bremsstrahlung and their application to high energy collider physics, focusing on the applications to luminosity measurement, fermion pair production and...
We present the elements of three applications of resummation methods in non-Abelian gauge theories: (1), QED X QCD exponentiation and shower/ME matching for LHC physics; (2), IR improvement of DGLAP...
We present the elements of three applications of resummation methods in non-Abelian gauge theories: (1), QED X QCD exponentiation and shower/ME matching for LHC physics; (2), IR improvement of DGLAP...
Yost, Scott A., Ward, B. F. L.
We describe radiative corrections to bremsstrahlung and their application to high energy collider physics, focusing on the applications to luminosity measurement, fermion pair production and...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Alekhin, S., Altarelli, G., Amapane, N., Andersen, J., Andreev, V., Arneodo, M., ...
The HERA electron--proton collider has collected 100 pb$^{-1}$ of data since its start-up in 1992, and recently moved into a high-luminosity operation mode, with upgraded detectors, aiming to...
Yost, S. A., Majhi, S., Ward, B. F. L.
We will describe radiative corrections to bremsstrahlung, focusing on applications to luminosity, fermion pair production, and radiative return at high-energy e+ e- colliders. A precise calculation...
QEDXQCD Exponentiation and Shower/ME Matching at the LHC (2005)
We present the elements of QEDXQCD exponentiation and its interplay with shower/ME matching in precision LHC physics scenarios. Applications to single heavy gauge boson production at hadron colliders...
IR-Improved DGLAP Theory (2005)
We show that it is possible to improve the infrared aspects of the standard treatment of the DGLAP evolution theory to take into account a large class of higher order corrections that significantly...
Radiative Corrections to Bremsstrahlung in Radiative Return (2005)
Yost, S A, Jadach, Stanislaw, Ward, B F L
Radiating a photon from the initial state provides a useful tool for studying a range of low energy physics using a high-energy e+ e- accelerator. Accurate results require careful calculation of the...
Radiative Corrections to Bremsstrahlung in Radiative Return (2005)
Yost, Scott A., Jadach, S., Ward, B. F. L.
Radiating a photon from the initial state provides a useful tool for studying a range of low energy physics using a high-energy e+ e- accelerator. Accurate results require careful calculation of the...
Final State of Hawking Radiation in Quantum General Relativity (2005)
We use a new approach to the UV behavior of quantum general relativity, together with some recent results from the phenomenological asymptotic safety analysis of the theory, to discuss the final...
Black Holes and Massive Elementary Particles in Resummed Quantum Gravity (2005)
Einstein's general theory of relativity poses many problems to the quantum theory of point particle fields. Among them is the fate of a massive point particle. Since its rest mass exists entirely...
Initial-final-state interference in the Z line-shape (2005)
Jadach, S., Pietrzyk, B., Tournefier, E., Ward, B.F.L., Was, Z.
Threshold Corrections in Precision LHC Physics: QED otimes QCD (2004)
Ward, B F L, Glosser, C, Jadach, Stanislaw, Yost, S A
With an eye toward LHC processes in which theoretical precisions of 1 percent are desired, we introduce the theory of the simultaneous YFS resummation of QED and QCD to compute the size of the...
New Results on Precision Studies of Heavy Vector Boson Physics (2004)
Ward, B F L, Glosser, C, Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, M, Was, Z, ...
We present new results for two important heavy vector boson physics processes: (1), virtual corrections to hard bremsstrahlung which are relevant to precision predictions for the radiative return...
Threshold Corrections in Precision LHC Physics: QED otimes QCD (2004)
Ward, B. F. L., Glosser, C., Jadach, S., Yost, S. A.
With an eye toward LHC processes in which theoretical precisions of 1 percent are desired, we introduce the theory of the simultaneous YFS resummation of QED and QCD to compute the size of the...
Massive Elementary Particles and Black Hole Physics in Resummed Quantum Gravity (2004)
We use exact results in a new approach to quantum gravity to discuss some issues in black hole physics.
Quantum Corrections to Newton's Law in Resummed Quantum Gravity (2004)
We present the elements of resummed quantum gravity, a new approach to quantum gravity based on the work of Feynman using the simplest example of a scalar field as the representative matter. We show...
New Results on Precision Studies of Heavy Vector Boson Physics (2004)
Ward, B. F. L., Glosser, C., Jadach, S., Placzek, W., Skrzypek, M., Was, Z., ...
We present new results for two important heavy vector boson physics processes: (1), virtual corrections to hard bremsstrahlung which are relevant to precision predictions for the radiative return...
Threshold Corrections in QED otimes QCD at the LHC (2004)
Ward, B F L, Glosser, C, Jadach, Stanislaw, Yost, S A
In some processes at the LHC, theoretical precisions of 1 percent are desired. With an eye toward such precisions, we introduce the theory of the simultaneous YFS resummation of QED and QCD to...
Massive Elementary Particles and Black Holes in Resummed Quantum Gravity (2004)
We use exact results in a new approach to quantum gravity to show that the classical conclusion that a massive elementary point particle is a black hole is obviated by quantum loop effects. Further...
Threshold Corrections in QED otimes QCD at the LHC (2004)
Ward, B. F. L., Glosser, C., Jadach, S., Yost, S. A.
In some processes at the LHC, theoretical precisions of 1 percent are desired. With an eye toward such precisions, we introduce the theory of the simultaneous YFS resummation of QED and QCD to...
Yost, S. A., Glosser, C., Jadach, S., Ward, B. F. L.
We have compared the virtual corrections to single hard bremsstrahlung as calculated by S. Jadach, M. Melles, B.F.L. Ward and S.A. Yost to several other expressions. The most recent of these...
Yost, S. A., Glosser, C., Jadach, S., Ward, B. F. L.
We have compared the virtual corrections to electron-positron annihilation to fermion pairs with single hard bremsstrahlung as calculated by S. Jadach, M. Melles, B.F.L. Ward and S.A. Yost to several...
Glosser, C, Jadach, Stanislaw, Ward, B F L, Yost, S A
We present comparisons of the fully differential exact virtual correction to the important single hard bremsstrahlung process in e+e- annihilation at high energies, which is essential for precision...
Glosser, C., Jadach, S., Ward, B. F. L., Yost, S. A.
We present comparisons of the fully differential exact virtual correction to the important single hard bremsstrahlung process in e+e- annihilation at high energies, which is essential for precision...
QED $\otimes$ QCD Threshold Corrections at the LHC (2004)
Glosser, C, Jadach, Stanislaw, Ward, B F L, Yost, S A
We use the theory of YFS resummation to compute the size of the expected resummed soft radiative threshold effects in precision studies of heavy particle production at the LHC, where accuracies of 1...
QED \otimes QCD Threshold Corrections at the LHC (2004)
Glosser, C., Jadach, S., Ward, B. F. L., Yost, S. A.
We use the theory of YFS resummation to compute the size of the expected resummed soft radiative threshold effects in precision studies of heavy particle production at the LHC, where accuracies of 1...
Precision Electro-Weak and Hadronic Luminosity Calculations (2004)
Yost, Scott A., Glosser, Chris, Ward, B. F. L.
We have used YFS Monte Carlo techniques to obtain per-mil level accuracy for the Bhabha scattering cross section used in the luminosity monitor in electro-weak scattering experiments. We will...
Massive Elementary Particles and Black Holes (2003)
An outstanding problem posed by Einstein's general theory of relativity to the quantum theory of point particle fields is the fate of a massive point particle; for, in the classical solutions of...
Are Massive Elementary Particles Black Holes? (2003)
We use exact results in a new approach to quantum gravity to study the effect of quantum loop corrections on the behavior of the metric of space-time near the Schwarzschild radius of a massive point...
Electric Charge Screening Effect in Single-W Production with the KoralW Monte Carlo (2003)
Jadach,S., Placzek,W., Skrzypek,M., Ward,B. F. L., Was,Z.
Any Monte Carlo event generator in which only initial state radiation (ISR) is implemented, or ISR is simulated independently of the final state radiation (FSR), may feature too many photons with...
Electric Charge Screening Effect in Single-W Production with the KoralW Monte Carlo (2003)
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
Any Monte Carlo event generator in which only initial state radiation (ISR) is implemented, or ISR is simulated independently of the final state radiation (FSR), may feature too many photons with...
Precision calculation for e+ e- -> 2f: the KK MC project (2002)
Ward, B. F. L., Jadach, S., Was, Z.
We present the current status of the coherent exclusive (CEEX) realization of the YFS theory for the processes in e+ e- -> 2f via the KK MC. We give a brief summary of the CEEX theory in comparison...
QCD soft gluon exponentiation: YFS MC Approach (2002)
We develop and prove the theory of the QCD extension of the YFS Monte Carlo approach to higher order QED radiative corrections. As a corollary, a new approach to quantum gravity by one of us...
Precision W-pair physics with the YFSWW3 and KoralW Monte Carlos (2002)
Skrzypek, Maciej, Jadach, Stanislaw, Placzek, Wiesiek, Ward, B F L, Was, Zbigniew
We present the recent developments in the precision studies of W-pair and single-W processes in e+e- collisions achieved with the help of the KoralW and YFSWW3 Monte Carlo generators. We focus on the...
Precision W-pair physics with the YFSWW3 and KoralW Monte Carlos (2002)
Skrzypek, M., Jadach, S., Placzek, W., Ward, B. F. L., Was, Z.
We present the recent developments in the precision studies of W-pair and single-W processes in e+e- collisions achieved with the help of the KoralW and YFSWW3 Monte Carlo generators. We focus on the...
Electric Charge Screening Effect in Single-W Production with the KoralW Monte Carlo (2002)
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
Any Monte Carlo event generator in which only initial state radiation (ISR) is implemented, or ISR is simulated independently of the final state radiation (FSR), may feature too many photons with...
Electric Charge Screening Effect in Single-W Production with the KoralW Monte Carlo (2002)
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
Any Monte Carlo event generator in which only initial state radiation (ISR) is implemented, or ISR is simulated independently of the final state radiation (FSR), may feature too many photons with...
YFS MC Approach to QCD Soft Gluon Exponentiation (2002)
Ward, B F L, Jadach, Stanislaw
We present two things in this discussion. First, we develop and prove the theory of the extension of the YFS Monte Carlo approach to higher order SU_{2L} x U_1 radiative corrections to the analogous...
YFS MC Approach to QCD Soft Gluon Exponentiation (2002)
We present two things in this discussion. First, we develop and prove the theory of the extension of the YFS Monte Carlo approach to higher order SU_{2L} x U_1 radiative corrections to the analogous...
Quantum Corrections to Newton's Law (2002)
We present a new approach to quantum gravity starting from Feynman's formulation for the simplest example, that of a scalar field as the representative matter. We show that we extend his treatment to...
Brunelière, R, Denner, A, Dittmaier, S, Jadach, Stanislaw, Jézéquel, S, Placzek, Wiesiek, ...
We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling...
Bruneliere, R., Denner, A., Dittmaier, S., Jadach, S., Jezequel, S., Placzek, W., ...
We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling...
Jadach,S., Melles,M., Ward,B. F. L., Yost,S. A.
We present the exact O(alpha) correction to the process e+ e- -> f f-bar + gamma, f neq e, for ISR oplus FSR at and beyond LEP2 energies. We give explicit formulas for the completely differential...
Bruneliere,R., Denner,A., Dittmaier,S., Jadach,S., Jezequel,S., Placzek,W., ...
We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling...
YFS MC Approach to QCD Soft Gluon Exponentiation (2002)
We present two things in this discussion. First, we develop and prove the theory of the extension of the YFS Monte Carlo approach to higher order SU_{2L} x U_1 radiative corrections to the analogous...
Quantum Corrections to Newton's Law (2002)
We present a new approach to quantum gravity starting from Feynman's formulation for the simplest example, that of a scalar field as the representative matter. We show that we extend his treatment to...
Jadach, S., Melles, M., Ward, B. F. L., Yost, S. A.
We present the exact O(alpha) correction to the process e+ e- -> f f-bar + gamma, f neq e, for ISR oplus FSR at and beyond LEP2 energies. We give explicit formulas for the completely differential...
Bruneliere, R., Denner, A., Dittmaier, S., Jadach, S., Jezequel, S., Placzek, W., ...
We discuss theoretical uncertainties of the distribution in the cosine of the W polar angle projected into a measurement of the anomalous triple gauge-boson coupling...
YFS MC Approach to QCD Soft Gluon Exponentiation (2002)
We present two things in this discussion. First, we develop and prove the theory of the extension of the YFS Monte Carlo approach to higher order SU_{2L} x U_1 radiative corrections to the analogous...
Jadach, Stanislaw, Melles, M, Ward, B F L, Yost, S A
We present the exact O(alpha) correction to the process e+ e- -> f f-bar + gamma, f neq e, for ISR oplus FSR at and beyond LEP2 energies. We give explicit formulas for the completely differential...
Jadach, S., Melles, M., Ward, B. F. L., Yost, S. A.
We present the exact O(alpha) correction to the process e+ e- -> f f-bar + gamma, f neq e, for ISR oplus FSR at and beyond LEP2 energies. We give explicit formulas for the completely differential...
On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2 (2001)
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3....
On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2 (2001)
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3....
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
The version 1.51 of the Monte Carlo (MC) program KoralW for all $e^+e^-\to f_1\bar f_2 f_3\bar f_4$ processes is presented. The most important change since the previous version 1.42 is the facility...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
The version 1.51 of the Monte Carlo (MC) program KoralW for all $e^+e^-\to f_1\bar f_2 f_3\bar f_4$ processes is presented. The most important change since the previous version 1.42 is the facility...
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
We present the Monte Carlo event generator YFSWW3 version 1.16 for theprocess of W-pair production and decay in electron-positron collisions. It includes ${\cal O}(\alpha)$ electroweak radiative...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We present the Monte Carlo event generator YFSWW3 version 1.16 for theprocess of W-pair production and decay in electron-positron collisions. It includes ${\cal O}(\alpha)$ electroweak radiative...
Precision Predictions for (Un)Stable $WW/4f$ Production in $e^{+}e^{-}$ Annihilation (2001)
Ward, B F L, Skrzypek, Maciej, Placzek, Wiesiek, Jadach, Stanislaw
We present precision calculations of the processes e+ e- -> 4-fermions in which the double resonant W+ W- and ZZ intermediate states occur. Referring to these latter intermediate states as the...
Ward, B. F. L., Jadach, S., P\l{}aczek, W., Skrzypek, M., Wcas, Z.
We present precision calculations of the processes e+ e- -> 4-fermions in which the double resonant W+ W- and ZZ intermediate states occur. Referring to these latter intermediate states as the...
Ward, B F L, Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej
We present precision calculations of the processes e+ e- -> 4-fermions in which the double resonant W+ W- and ZZ intermediate states occur. Referring to these latter intermediate states as the...
Coherent Exclusive Exponentiation of 2f Processes in e+e- Annihilation (2001)
Was, Zbigniew, Jadach, Stanislaw, Ward, B F L
In the talk we present the Coherent Exclusive Exponentiation (CEEX) which is implemented in the KK MC event generator for the process e+e- to f bar f +n gamma, f=mu,tau,d,u,s,c,b for center of mass...
Coherent Exclusive Exponentiation of 2f Processes in e+e- Annihilation (2001)
Was, Z., Jadach, S., Ward, B. F. L.
In the talk we present the Coherent Exclusive Exponentiation (CEEX) which is implemented in the KK MC event generator for the process e+e- to f bar f +n gamma, f=mu,tau,d,u,s,c,b for center of mass...
Report of the QCD working group (2001)
Ballestrero, A., Grunewald, M W., Passarino, G., Accomando, E., Bambade, P., Bardin, D Yu., ...
en cours
Four-Fermion Production in Electron-Positron Collisions / (2001)
Grunewald, M W., Passarino, G., Accomando, E., Ballestrero, A., Bambade, P., Bardin, D Yu., ...
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in...
On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2 (2001)
Jadach,S., Placzek,W., Skrzypek,M., Ward,B. F. L., Was,Z.
We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3....
On Theoretical Uncertainties of the W Boson Mass Measurement at LEP2 (2001)
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We discuss theoretical uncertainties of the measurement of the $W$ boson mass at LEP2 energies, reconstructed with the help of the tandem of the Monte Carlo event generators KoralW and YFSWW3....
Coherent Exclusive Exponentiation for Precision Monte Carlo Calculations (2000)
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
In this contribution we give a short overview of the new Coherent Exclusive Exponentiation (CEEX) which is implemented in the new \KK MC event generator for the process $e^+e^-\to f\bar{f} +n\gamma$,...
Coherent Exclusive Exponentiation for Precision Monte Carlo Calculations (2000)
Jadach, S., Ward, B. F. L., Was, S.
In this contribution we give a short overview of the new Coherent Exclusive Exponentiation (CEEX) which is implemented in the new \KK MC event generator for the process $e^+e^-\to f\bar{f} +n\gamma$,...
W-Pair Production with YFSWW/KoralW (2000)
Placzek, Wiesiek, Jadach, Stanislaw, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
A theoretical description of W-pair production in terms of two complementary Monte Carlo event generators YFSWWand KoralW is presented. The way to combine the results of these two programs in order...
W-Pair Production with YFSWW/KoralW (2000)
Placzek, W., Jadach, S., Skrzypek, M., Ward, B. F. L., Was, Z.
A theoretical description of W-pair production in terms of two complementary Monte Carlo event generators YFSWWand KoralW is presented. The way to combine the results of these two programs in order...
Ward, B F L, Was, Zbigniew, Skrzypek, Maciej, Placzek, Wiesiek, Jadach, Stanislaw
We present the new Coherent Exclusive Exponentiation (CEEX), in comparison to the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX), for the process e+e- ->...
Ward, B F L, Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Was, Zbigniew
We present the new Coherent Exclusive Exponentiation (CEEX), in comparison to the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX), for the process e+e- ->...
Ward, B. F. L., Jadach, S., Płaczek, W., Skrzypek, M., Was, Z.
We present the new Coherent Exclusive Exponentiation (CEEX), in comparison to the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX), for the process e+e- ->...
Two-Fermion Production in Electron-Positron Collisions (2000)
Kobel, M, Was, Zbigniew, Ainsley, C, Arbuzov, A, Arcelli, S, Bardin, Dimitri Yuri, ...
This report summarizes the results of the two-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the theoretical calculations of the two fermion...
Two-Fermion Production in Electron-Positron Collisions (2000)
Kobel, Michael, Was, Zbigniew, Ainsley, C., Arbuzov, A., Arcelli, S., Bardin, D., ...
This report summarizes the results of the two-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the theoretical calculations of the two fermion...
Precision Predictions for (Un)Stable $W^{+}W^{-}$ Pair Production at and Beyond LEP2 Energies (2000)
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, M, Ward, B F L, Was, Z
We present precision calculations of the processes e+e- -> 4-fermions in which the double resonant W+W- intermediate state occurs. Referring to this latter intermediate state as the 'signal process',...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We present precision calculations of the processes e+e- -> 4-fermions in which the double resonant W+W- intermediate state occurs. Referring to this latter intermediate state as the 'signal process',...
Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations (2000)
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
We present the new Coherent Exclusive Exponentiation (CEEX), the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX) for the process $e^+e^-\to f\bar{f}...
Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations (2000)
Jadach, S., Ward, B. F. L., Was, Z.
We present the new Coherent Exclusive Exponentiation (CEEX), the older Exclusive Exponentiation (EEX) and the semi-analytical Inclusive Exponentiation (IEX) for the process $e^+e^-\to f\bar{f}...
CP Violation in Exclusive B Decays: Recoil Phase Effect (2000)
In the perturbative QCD approach to exclusive B decays to two light mesons, the leading twist contribution corresponds to those diagrams in the Lepage-Brodsky expansion in which the would be...
Four-Fermion Production in Electron-Positron Collisions (2000)
Grünewald, M W, Passarino, G, Accomando, E, Ballestrero, A, Bambade, P, Bardin, Dimitri Yuri, ...
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in...
Four-Fermion Production in Electron-Positron Collisions (2000)
Gruenewald, Martin W., Passarino, Giampiero, Accomando, E., Ballestrero, A., Bambade, P., Bardin, D., ...
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in...
Physics and technology of the Next Linear Collider (2000)
Kuhlman, S, Adolphsen, C E, Aiello, R, Akemoto, M, Alley, R, Assmann, R W, ...
We present the current expectations for the design and physics program of an e+e- linear collider of center of mass energy 500 GeV -- 1 TeV. We review the experiments that would be carried out at...
Two fermion production in electron positron collisions (2000)
Kobel, Michael, Was, Zbigniew, Ainsley, C, Arbuzov, A, Arcelli, S, Bardin, Dmitri Yu, ...
Report of the QCD working group (2000)
Ballestrero, A., Grunewald, M W., Passarino, G., Accomando, E., Bambade, P., Bardin, D Yu., ...
en cours
Four-Fermion Production in Electron-Positron Collisions / (2000)
Grunewald, M W., Passarino, G., Accomando, E., Ballestrero, A., Bambade, P., Bardin, D Yu., ...
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in...
Report of the QCD working group (2000)
Ballestrero, A., Grunewald, M W., Passarino, G., Accomando, E., Bambade, P., Bardin, D Yu., ...
en cours
Four-Fermion Production in Electron-Positron Collisions / (2000)
Grunewald, M W., Passarino, G., Accomando, E., Ballestrero, A., Bambade, P., Bardin, D Yu., ...
This report summarises the results of the four-fermion working group of the LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in the calculation of four-fermion processes in...
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
We present the Monte Carlo event generator KK version 4.12 for precision predictions of the Electroweak Standard Model for the process $e^+e^-\to $b,c,\tau$-factories etc. Effects due to photon...
The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions (1999)
Jadach, S., Ward, B. F. L., Was, Z.
We present the Monte Carlo event generator KK version 4.13 for precision predictions of the Electroweak Standard Model for the process $e^+e^-\to f\bar{f} +n\gamma$, $f=\mu,\tau,d,u,s,c,b$ at centre...
Initial-Final-State Interference in the Z line-shape (1999)
Jadach, Stanislaw, Pietrzyk, B, Tournefier, E, Ward, B F L, Was, Zbigniew
The uncertainty in the determination of the Z line-shape parameters coming from the precision of the calculation of the Initial-State Radiation and Initial--Final-State Interference is 2 10**(-4) for...
Initial-Final-State Interference in the Z line-shape (1999)
Jadach, S., Pietrzyk, B., Tournefier, E., Ward, B. F. L., Was, Z.
The uncertainty in the determination of the Z line-shape parameters coming from the precision of the calculation of the Initial-State Radiation and Initial--Final-State Interference is 2 10**(-4) for...
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
We present the LL final state radiative effects for the exact O(alpha) YFS exponentiated (un)stable WW pair production at LEP2/NLC energies using Monte Carlo event generator methods. The respective...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We present the LL final state radiative effects for the exact O(alpha) YFS exponentiated (un)stable WW pair production at LEP2/NLC energies using Monte Carlo event generator methods. The respective...
Monte Carlo Program KoralW 1.42 for All Four-Fermion Final States in e+e- Collisions (1999)
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
The Monte Carlo program KoralW version 1.42 is presented. It generates all four-fermion final states with multibranch dedicated Monte Carlo pre-samplers and complete, massive, Born matrix elements....
Coherent Exclusive Exponentiation CEEX: the Case of the Resonant e+ e- Collision (1999)
Jadach, S., Ward, B. F. L., Was, Z.
We present the first-order coherent exclusive exponentiation (CEEX) scheme, with the full control over spin polarization for all fermions. In particular it is applicable to difficult case of narrow...
Global Positioning of Spin GPS Scheme for Half-Spin Massive Spinors (1999)
Jadach, S., Ward, B. F. L., Was, Z.
We present a simple and flexible method of keeping track of the complex phases and spin quantization axes for half-spin initial- and final-state Weyl spinors in scattering amplitudes of Standard...
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
Brief information on new features of KORALZ version 4.04 with respect to version 4.0 is given. The main difference is that the new version could be used at LEP2 energies, i.e. up to 240 GeV...
Jadach, S., Ward, B. F. L., Was, Z.
Brief information on new features of KORALZ version 4.04 with respect to version 4.0 is given. The main difference is that the new version could be used at LEP2 energies, i.e. up to 240 GeV...
Precision Calculation of Bhabha Scattering at LEP (1999)
Placzek, Wiesiek, Jadach, Stanislaw, Melles, M, Ward, B F L, Yost, S A
For the small-angle Bhabha-scattering process, we consider the error budget for the calculation of the LEP/SLC luminosity in the Monte Carlo event generator BHLUMI 4.04, from the standpoint of new...
Precision Calculations of Heavy Boson Production: YFS Monte Carlo Approach (1999)
Skrzypek, Maciej, Jadach, Stanislaw, Placzek, Wiesiek, Ward, B F L, Was, Zbigniew
In this talk I present the current status of the family of Monte Carlo programs for four-fermion physics based on the Yennie-Frautschie-Suura resummation of soft real and virtual photons. I focus on...
Precision Calculation of Bhabha Scattering at LEP (1999)
Placzek, W., Jadach, S., Melles, M., Ward, B. F. L., Yost, S. A.
For the small-angle Bhabha-scattering process, we consider the error budget for the calculation of the LEP/SLC luminosity in the Monte Carlo event generator BHLUMI 4.04, from the standpoint of new...
Precision Calculations of Heavy Boson Production - YFS Monte Carlo Approach (1999)
Skrzypek, M., Jadach, S., Placzek, W., Ward, B. F. L., Was, Z.
In this talk I present the current status of the family of Monte Carlo programs for four-fermion physics based on the Yennie-Frautschie-Suura resummation of soft real and virtual photons. I focus on...
Coherent exclusive exponentiation CEEX: the case of the resonant $e^+ e^-$ collision (1999)
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
We present the first-order coherent exclusive exponentiation (CEEX) scheme, with the full control over spin polarization for all fermions. In particular it is applicable to difficult case of narrow...
Initial-final-state interference in the Z line-shape (1999)
Jadach, S., Pietrzyk, B., Tournefier, E., Ward, B.F.L., Was, Z.
Initial-final-state interference in the Z line-shape (1999)
Jadach, S., Pietrzyk, B., Tournefier, E., Ward, B.F.L., Was, Z.
Monte Carlo program KoralW 1.42 for all four-fermion final states in $e^{+} e^{-}$ collisions (1998)
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L, Was, Zbigniew
New Results on the Theoretical Precision of the LEP/SLC Luminosity (1998)
Ward, B. F. L., Jadach, S., Melles, M., Yost, S. A.
We consider the error budget for the calculation of the LEP/SLC luminosity in the Monte Carlo event generator BHLUMI4.04 from the standpoint of new calculations of the exact result for the O(alpha)...
Global positioning of spin GPS scheme for half-spin massive spinors (1998)
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
We present a simple and flexible method of keeping track of the complex phases and spin quantisation axes for half-spin initial- and final-state Weyl spinors in scattering amplitudes of Standard...
Size of Penguin Pollution of the CKM CP Violating Phase in B-bar_s -> rho K_s (1998)
We use the perturbative QCD methods of Lepage and Brodsky to calculate the rate for B-bar_s -> rho K_s, with an eye toward the CP violating unitarity triangle angle gamma. We show that, although the...
Theoretical calculations of the Bhabha process (1997)
Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, Ward, B F L, ...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L., Was, Z.
We realize, by Monte Carlo event generator methods, the exact O}(\alpha)$ YFS exponentiated calculation of $e^+e^- \to W^+ W^- (\to f_1\bar f'_1 + \bar f_2 f'_2)$ at and beyond LEP2 energies, where...
Jadach, S., Placzek, W., Ward, B. F. L.
We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of $e^+e^- \to Z Z \to f_1\bar f_1 + \bar f_2 f_2$ at and beyond LEP2 energies, where the...
We show that the recently derived renormalization group improved Yennie-Frautschi-Suura (YFS) exponentiation of soft $(k_o\to 0)$ gluons in QCD is fully compatible with the usual...
Jadach, Stanislaw, Placzek, Wiesiek, Ward, B F L
We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of $e^+e^- \to Z Z \to f_1\bar f_1 + \bar f_2 f_2$ at and beyond LEP2 energies, where the...
Jadach, S., Placzek, W., Ward, B. F. L.
We discuss the leptoquark interpretation of the anomalous HERA positron-jet events in the context of the YFS exponentiated Monte Carlo event generator treatment of the attendant multiple photon...
Jadach, Stanislaw, Ward, B F L, Was, Zbigniew
We discuss the allowed parameter regime in the coupling-mass plane implied by the existing LEP2 data on e+ e- -> hadrons at 172.3 GeV for the vector leptoquark interpretation of the anomalous DESY...
Jadach, S., Ward, B. F. L., Was, Z.
We discuss the allowed parameter regime in the coupling-mass plane implied by the existing LEP2 data on e+ e- -> hadrons at 172.3 GeV for the leptoquark interpretation of the anomalous DESY...
Precise calculations of the Bhabha process (1996)
Ward, B F L, Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, ...
Anomalous Gauge Boson Couplings (1996)
Barklow, T., Baur, U., Cuypers, F., Dawson, S., Errede, D., Errede, S., ...
The measurement of anomalous gauge boson self couplings is reviewed for a variety of present and planned accelerators. Sensitivities are compared for these accelerators using models based on the...
Upgrade of the Monte Carlo program BHLUMI for Bhabha scattering at low angles to version 4.04 (1996)
Jadach, Stanislaw, Placzek, Wiesiek, Richter-Was, Elzbieta, Ward, B F L, Was, Zbigniew
Jadach, Stanislaw, Placzek, Wiesiek, Ward, B F L
We present O(alpha) YFS exponentiated results for wide angle Bhabha scattering at LEP/SLC energies using a new Monte Carlo event generator BHWIDE 1.xx. Our calculations include two options for the...
Jadach, S., Placzek, W., Ward, B. F. L.
We present O(alpha) YFS exponentiated results for wide angle Bhabha scattering at LEP/SLC energies using a new Monte Carlo event generator BHWIDE 1.xx. Our calculations include two options for the...
Jadach, Stanislaw, Placzek, Wiesiek, Ward, B F L
We present O(alpha) YFS exponentiated results for wide angle Bhabha scattering at LEP/SLC energies using a new Monte Carlo event generator BHWIDE 1.xx. Our calculations include two options for the...
Bhabha Process at LEP: Theoretical Calculations (1996)
Jadach, Stanislaw, Melles, M, Ward, B F L, Yost, S A
In this contribution we give a short overview of the situation in the precision calculation of the Bhabha process and we present a preliminary numerical result on the second-order sub-leading...
Bhabha Process at LEP - Theoretical Calculations (1996)
Jadach, S., Melles, M., Ward, B. F. L., Yost, S. A.
In this contribution we give a short overview of the situation in the precision calculation of the Bhabha process and we present a preliminary numerical result on the second-order sub-leading...
Jadach, Stanislaw, Placzek, Wiesiek, Skrzypek, Maciej, Ward, B F L
We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of e^+e^- \rightarrow W^+ W^- \rightarrow f_1\bar f'_1 + \bar f_2 f'_2 at and beyond LEP2 energies,...
Jadach, S., Placzek, W., Skrzypek, M., Ward, B. F. L.
We present the theoretical basis and sample Monte Carlo data for the YFS exponentiated calculation of $e^+e^- \rightarrow W^+ W^- \rightarrow f_1\bar f'_1 + \bar f_2 f'_2$ at and beyond LEP2...
Arbuzov, A B, Bigi, M, Burkhardt, H, Cacciari, M, Caffo, M, Dallavalle, G M, ...
The results concerning the theoretical evaluation of the small-angle Bhabha Scattering cross section obtained during the Workshop on Physics at LEP2 (CERN, Geneva, Switzerland, 1995) by the Working...
Arbuzov, A., Bigi, M., Burkhardt, H., Cacciari, M., Caffo, M., Z, H. Czy\., ...
The results concerning the theoretical evaluation of the small-angle Bhabha Scattering cross section obtained during the Workshop on Physics at LEP2 (CERN, Geneva, Switzerland, 1995) by the Working...
Jadach, S., Melles, M., Ward, B. F. L., Yost, S. A.
We present the exact O(alpha) correction to the process e+ e- -> e+ e- + gamma in the low angle luminosity regime at SLC/LEP energies. We give explicit formulas for the completely differential cross...
Event Generators for Bhabha Scattering (1996)
Jadach, S., Nicrosini, O., Anlauf, H., Arbuzov, A., Bigi, M., Burkhardt, H., ...
The results obtained by the "Event Generators for Bhabha Scattering" working group during the CERN Workshop "Physics at LEP2" (1994/1995) are presented.
Multiple gluon effects in t$\overline{t}$ production at and beyond FNAL energies (1996)
Delaney, D B, Jadach, Stanislaw, Shio, C, Siopsis, G, Ward, B F L
Standard model processes (1996)
Boudjema, F, Melé, Barbara, Accomando, E, Ambrosanio, S, Ballestrero, A, Bardin, Dimitri Yuri, ...
We present the results obtained by the Standard Model Process group in the CERN Workshop "Physics at LEP2" (1994/95).
DeLaney, D., Jadach, S., Kim, S. M., Shio, Ch., Siopsis, G., Ward, B. F. L.
We apply our Yennie-Frautschi-Suura exponentiated cross section formulas for the parton processes $q + {^(} \bar q {^)}{^\prime} \ra q{^\prime}{^\prime} + {^(} \bar q {^)}{^\prime}{^\prime}{^\prime}...
Precision calculation of the $\gamma$-Z interference effect in the SLC/LEP luminosity process (1995)
Precision calculation of the small angle Bhabha cross section (1994)
Ward, B F L, Jadach, Stanislaw, Richter-Was, Elzbieta, Was, Zbigniew
Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, Ward, B F L, ...
QED corrections to luminosity measurements at LEP (1994)
Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, Ward, B F L, ...
Multiple Gluon Effects in Fermion--(Anti)Fermion Scattering at SSC/LHC Energies (1994)
DeLaney, D. B., Jadach, S., Shio, Ch., Siopsis, G., Ward, B. F. L.
We extend the methods of Yennie, Frautschi and Suura (YFS) to compute, via Monte Carlo methods, the effects of multiple gluon emission in the processes $q+q'\to q''+q'''+n(G)$, where $G$ is a soft...
Theoretical Expectations For High Mass Photon Pairs in L+ L- Gamma Gamma Events at LEP/SLC (1994)
Jadach, S., Ward, B. F. L., Yost, S. A.
Recently, the L3 collaboration has reported the observation of four events in the reactions e+ e- --> L+ L- + (2 Photons), L = e, mu, tau, with the invariant photon pair mass near 60 GeV in a data...
Higher-Order Radiative Corrections to $Z^{0}$ and SSC Physics: YFS Monte Carlo Approach (1993)
Ward, B F L, Delaney, D B, Jadach, Stanislaw, Shio, C, Siopsis, G, Skrzypek, Maciej, ...
Renormalization Group Improved Exponentiation of Soft Gluons in QCD (1993)
DeLaney, D. B., Jadach, S., Shio, Ch., Siopsis, G., Ward, B. F. L.
We extend the methods of Yennie, Frautschi and Suura to QCD for the summation of soft gluon effects in which infrared singularities are cancelled to all orders in $\alpha_s$. An explicit formula for...
Radiative corrections in processes at the SSC (1992)
Siopsis, G, Delaney, D B, Jadach, Stanislaw, Shio, C, Ward, B F L
We discuss radiative corrections for interactions in the SSC environment. Based on the theory of Yennie, Frautschi and Suura, we develop appropriate Monte Carlo event generators to compute the...
Exact Results on e+ e- --> e+ e- + 2 Photons at SLC/LEP Energies (1992)
Jadach, S., Ward, B. F. L., Yost, S. A.
We use the spinor methods of the CALKUL collaboration, as realized by Xu, Zhang and Chang, to calculate the differential cross section for e+ e- --> e+ e- + 2 photons for c.m.s. energies in the...
Multiple photon effects in pp scattering at SSC energies (1992)
Delaney, D B, Jadach, Stanislaw, Shio, C, Siopsis, G, Ward, B F L
Radiative corrections in processes at the SSC (1992)
Siopsis, G., DeLaney, D. B., Jadach, S., Shio, Ch., Ward, B. F. L.
We discuss radiative corrections for interactions in the SSC environment. Based on the theory of Yennie, Frautschi and Suura, we develop appropriate Monte Carlo event generators to compute the...
Multiple photon effects in $pp$ scattering at SSC energies (1992)
DeLaney, D. B., Jadach, S., Shio, C., Siopsis, G., Ward, B. F. L.
The Monte Carlo program SSCYFS2 is used in conjunction with available parton distribution functions to calculate the effects of multiple photon radiation on pp scattering at SSC energies. Effects...
Multiple photon effects in fermion-(anti)fermion scattering at SSC energies (1992)
DeLaney, D. B., Jadach, S., Shio, Ch., Siopsis, G., Ward, B. F. L.
We use the theory of Yennie, Frautschi and Suura to realize, via Monte Carlo methods, the process $f\,\bbbarf\to f'\,\bbbarf'+n\gamma$ at SSC and LHC energies, where $f$ and $f'$ are quarks or...
QED multiphoton corrections to Bhabha scattering at low angles: Monte Carlo solution (1991)
Jadach, Stanislaw, Richter-Was, Elzbieta, Ward, B F L, Was, Zbigniew
Higher order QED corrections to Bhabha scattering at low angles (1991)
Jadach, Stanislaw, Richter-Was, Elzbieta, Ward, B F L, Was, Zbigniew
Analytical O($\alpha$) distributions for Bhabha scattering at low angles (1990)
Jadach, Stanislaw, Richter-Was, Elzbieta, Ward, B F L, Was, Zbigniew
The exclusive exponentiation in the Monte Carlo: the case of the initial state bremsstrahlung (1990)
Spin effects in inelastic lepton nucleon scattering. (1973)
Thesis (Ph. D.)--Princeton.
QCD soft gluon exponentiation: YFS MC Approach
We develop and prove the theory of the QCD extension of the YFS Monte Carlo approach to higher order QED radiative corrections. As a corollary, a new approach to quantum gravity by one of us...
QCD soft gluon exponentiation: YFS MC Approach
We develop and prove the theory of the QCD extension of the YFS Monte Carlo approach to higher order QED radiative corrections. As a corollary, a new approach to quantum gravity by one of us...