The Exclusive NLO DGLAP Kernels for Non-Singlet Evolution (2009)
Skrzypek, Maciej, Jadach, Stanislaw
We show for a first time ever a prototype of a fully exclusive QCD NLO parton shower for the initial state (albeit for a limited set of diagrams). It is based on the rigorous theorems of the...
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...
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...
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...
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....
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, 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...
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...
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...
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- ->...
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...
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...
On the precision of calculations of initial state radiation in the LEP Z line-shape fits (1999)
Jadach, Stanislaw, Pietrzyk, B, Skrzypek, Maciej
Calculation of initial state radiation (ISR) in the fitting program MIZA and in the standard model program BHM is improved within the analysis of the Z line-shape measurements at LEP. The uncertainty...
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...
How to Generate Four-Fermion Phase Space (1999)
Skrzypek, Maciej, Was, Zbigniew
We present a scheme for integrating the matrix element of an arbitrary e^+e^-\to f_1f_2\bar f_3\bar f_4 process over the complete four-fermion phase space, or its any part, by means of the Monte...
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...
The muon anomalous magnetic moment in QED: three-loop electron and tau contributions (1998)
Czarnecki, Andrzej, Skrzypek, Maciej
We present an analytic calculation of electron and tau O(alpha^3) loop effects on the muon anomalous magnetic moment. Computation of such three-loop diagrams with three mass scales is possible using...
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
Theoretical calculations of the Bhabha process (1997)
Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, Ward, B F L, ...
Four-quark final state in W-pair production: Case of signal and background (1997)
Ishikawa, T, Kurihara, Y, Skrzypek, Maciej, Was, Zbigniew
We discuss theoretical predictions for W-pair production and decay at LEP2 and higher energies in a form suitable for comparison with raw data. We present a practical framework for calculating...
Precise calculations of the Bhabha process (1996)
Ward, B F L, Jadach, Stanislaw, Melles, M, Placzek, Wiesiek, Richter-Was, Elzbieta, Skrzypek, Maciej, ...
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,...
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...
WW cross-sections and distributions (1996)
Beenakker, W, Berends, F A, Argyres, E N, Bardin, Dimitri Yuri, Denner, A, Dittmaier, S, ...
We present the results obtained by the "WW Cross-sections and Distributions" working group during the CERN Workshop "Physics at LEP2" (1994/1995)
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, ...
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, ...