Agarwal, Nishant, Kamal, Archana, Jain, Pankaj
We investigate the effects of pseudoscalar-photon mixing on electromagnetic radiation in the presence of correlated extragalactic magnetic fields. We model the universe as a collection of magnetic...
Axion luminosity of Active Galactic Nuclei (2009)
Jain, Pankaj, Mandal, Subhayan
We compute the flux of axions from Active Galactic Nuclei (AGN). Axions can be produced in the accretion disk by the Compton, Bremsstrahlung and Primakoff processes. We find that the axion luminosity...
Constraints on the Cosmological Constant due to Scale Invariance (2009)
Aluri, Pavan K., Jain, Pankaj, Mitra, Subhadip, Panda, Sukanta, Singh, Naveen K.
We consider the standard model with local scale invariance. The theory shows exact scale invariance of dimensionally regulated action. We show that massless gauge fields, which may be abelian or...
Model independent foreground power spectrum estimation using WMAP 5-year data (2009)
Ghosh, Tuhin, Saha, Rajib, Jain, Pankaj, Souradeep, Tarun
In this paper, we propose and implement on WMAP 5 yr data a model independent approach of foreground power spectrum estimation for multifrequency observations of the CMB experiments. Recently, a...
Signals of statistical anisotropy in WMAP foreground-cleaned maps (2009)
Samal, Pramoda Kumar, Saha, Rajib, Jain, Pankaj, Ralston, John P.
Recently, a symmetry-based method to test for statistical isotropy of the cosmic microwave background was developed. We apply the method to template-cleaned 3- and 5-years Wilkinson Microwave...
Samal, Pramoda Kumar, Saha, Rajib, Delabrouille, Jacques, Prunet, Simon, Jain, Pankaj, Souradeep, Tarun
We estimate CMB polarization and temperature power spectra using WMAP 5-year foreground contaminated maps. The power spectrum is estimated by using a model independent method, which does not utilize...
Standard Model with Cosmologically Broken Quantum Scale Invariance (2009)
We argue that scale invariance is not anomalous in quantum field theory, provided it is broken cosmologically. We consider a locally scale invariant extension of the Standard Model of particle...
One Loop Calculation of Cosmological Constant in a Scale Invariant Theory (2009)
We compute the cosmological constant in a scale invariant scalar field theory. The gravitational action is also suitably modified to respect scale invariance. Due to scale invariance the theory does...
Model Independent Foreground Power Spectrum Estimation using WMAP 5-year Data (2009)
Ghosh, Tuhin, Saha, Rajib, Jain, Pankaj, Souradeep, Tarun
In this paper, we propose & implement on WMAP 5-year data, a model independent approach of foreground power spectrum estimation for multifrequency observations of CMB experiments. Recently a model...
Signals of Statistical Anisotropy in WMAP Foreground-Cleaned Maps (2008)
Samal, Pramoda Kumar, Saha, Rajib, Jain, Pankaj, Ralston, John P.
Recently a symmetry-based method to test for statistical isotropy of the cosmic microwave background was developed. We apply the method to template-cleaned 3-year and 5-year WMAP-$DA$ maps. We...
Photon & Axion Oscillation In a Magnetized Medium: A Covariant Treatment (2008)
Ganguly, Avijit K., Jain, Pankaj, Mandal, Subhayan
Pseudoscalar particles, with almost zero mass and very weak coupling to the visible matter, arise in many extensions of the standard model of particle physics. Their mixing with photons in the...
Dark Energy and Dark Matter in General Relativity with local scale invariance (2008)
Aluri, Pavan Kumar, Jain, Pankaj, Singh, Naveen K.
We consider a generalization of Einstein's general theory of relativity such that it respects local scale invariance. This requires the introduction of a scalar and a vector field in the action. We...
Signatures of Pseudoscalar Photon Mixing in CMB Radiation (2008)
Agarwal, Nishant, Jain, Pankaj, McKay, Douglas W., Ralston, John P.
We model the effect of photon and ultra-light pseudoscalar mixing on the propagation of electromagnetic radiation through the extragalactic medium. The medium is modelled as a large number of...
Distributed Megamodules (2008)
Dorothea Beringer, Catherine Tornabene, Pankaj Jain, Gio Wiederhold
New levels of software composition become possible through advances in distributed communication services. In this paper we focus on the composition of megamodules, which are large distributed...
Jain, Pankaj, Joglekar, Satish D., Mitra, Subhadip
We compute the two photon exchange contributions to elastic scattering of polarized electrons from target protons. We use a nonlocal field theory formalism for this calculation. The formalism...
Cosmological Implications of a Scale Invariant Standard Model (2008)
Jain, Pankaj, Mitra, Subhadip, Singh, Naveen K.
We generalize the standard model of particle physics such it displays global scale invariance. The gravitational action is also suitably modified such that it respects this symmetry. This model is...
Testing Isotropy of Cosmic Microwave Background Radiation (2007)
Samal, Pramoda Kumar, Saha, Rajib, Jain, Pankaj, Ralston, John P.
We introduce new symmetry-based methods to test for isotropy in cosmic microwave background radiation. Each angular multipole is factored into unique products of power eigenvectors, related...
Self-interacting dark matter in the solar system (2007)
Ganguly, Avijit K., Jain, Pankaj, Mandal, Subhayan, Stokes, Sarah
Weakly coupled, almost massless, spin 0 particles have been predicted by many extensions of the standard model of particle physics. Recently, the PVLAS group observed a rotation of polarization of...
CMB anisotropy power spectrum using linear combinations of WMAP maps (2007)
Saha, Rajib, Prunet, Simon, Jain, Pankaj, Souradeep, Tarun
In recent years the goal of estimating different cosmological parameters precisely has set new challenges in the effort to accurately measure the angular power spectrum of CMB. This has required...
Circumventing Astrophysical Bounds Upon PVLAS Experiment (2007)
Mandal, Subhayan, Jain, Pankaj
We study the possibility of evading astrophysical bound on light pseudoscalars. We argue that the solar bounds can be evaded if we have a sufficiently strong self-coupling of the pseudoscalars. The...
Cosmological Symmetry Breaking, Pseudo-scale invariance, Dark Energy and the Standard Model (2007)
The energy density of the universe today may be dominated by the vacuum energy of a slowly rolling scalar field. Making a quantum expansion around such a time dependent solution is found to break...
Self Interacting Dark Matter in the Solar System (2006)
Ganguly, Avijit K., Jain, Pankaj, Mandal, Subhayan, Stokes, Sarah
Weakly coupled, almost massless, spin 0 particles have been predicted by many extensions of the standard model of particle physics. Recently, the PVLAS group observed a rotation of polarization of...
Classifying Polarization Observables of the Cosmic Microwave Background (2006)
Ralston, John P., Jain, Pankaj
We revisit the classification of polarization observables of the cosmic microwave background. There exists a unified approach to the $3 \times 3$ density matrix by which intensity, linear and...
Angular power spectrum of CMB anisotropy from WMAP (2006)
Souradeep, Tarun, Saha, Rajib, Jain, Pankaj
The remarkable improvement in the estimates of different cosmological parameters in recent years has been largely spearheaded by accurate measurements of the angular power spectrum of Cosmic...
Two Photon Exchange Contributions to Elastic ep Scattering in the Nonlocal Field Formalism (2006)
Jain, Pankaj, Joglekar, Satish D., Mitra, Subhadip
We construct a nonlocal gauge invariant Lagrangian to model the electromagnetic interaction of proton. The Lagrangian includes all allowed operators with dimension up to five. We compute the two...
Interferometric Parallax: A Method for Measurement of Astronomical Distances (2006)
Jain, Pankaj, Ralston, John P.
We show that distances of objects at cosmological distances can be measured directly using interferometry. Our approach to interferometric parallax comes from analysis of 4-point amplitude and...
Ultrasound contrast agents are micron size bubbles used for medical purposes such as diagnostic ultrasound imaging and targeted drug delivery. These bubbles are encapsulated with a shell and have a...
Acoustical investigation of ultrasound contrast agents theory and experiments / (2006)
Thesis (M.S.M.E.)--University of Delaware, 2006.
Evading the astrophysical limits on light pseudoscalars (2005)
Jain, Pankaj, Mandal, Subhayan
We study the possibility of evading astrophysical bounds on light pseudoscalars. We argue that the solar bounds can be evaded if we have a sufficiently strong self coupling of the pseudoscalars. The...
Search for Global Metric Anisotropy in Type Ia Supernova Data (2005)
Jain, Pankaj, Modgil, Moninder S., Ralston, John P.
We examine the Type 1a supernova data in order to determine if it shows any signal of large scale anisotropy. The anisotropy is modelled by an extended G\"{o}del metric, which incorporates expansion...
Ultra High Energy Cosmic Rays from Early Decaying Primordial Black Holes (2005)
Origin of ultra high energy cosmic rays is an unsolved problem. Several proposals such as Z-burst, decay of super massive matter, susy particles as a primary, neutrino as a primary in extra dimension...
A blind estimation of the power spectrum of CMB anisotropy from WMAP (2005)
Saha, Rajib, Jain, Pankaj, Souradeep, Tarun
Accurate measurements of angular power spectrum of Cosmic Microwave Background (CMB) radiation has lead to marked improvement in the estimates of different cosmological parameters. This has required...
Evidence for Evolution or Bias in Host Extinctions of Type 1a Supernovae at High Redshift (2005)
Jain, Pankaj, Ralston, John P.
Type 1a supernova magnitudes conventionally include an additive parameter called the extinction coefficient. We find that the extinction coefficients of a popular ``gold'' set are well correlated...
Supersymmetry and the Lorentz Fine Tuning Problem (2005)
Jain, Pankaj, Ralston, John P.
If physics at the Planck scale requires new conceptions of space-time, then generic renormalizable field theories predict observable violations of Lorentz invariance in the low energy sector. The...
Dark Energy in an Axion Model with Explicit Z(N) Symmetry Breaking (2004)
We point out that a well known axion model with an explicit Z(N) symmetry breaking term predicts both dark energy and cold dark matter. We estimate the parameters of this model which fit the observed...
The Dynamical Mixing of Light and Pseudoscalar Fields (2004)
Das, Sudeep, Jain, Pankaj, Ralston, John P., Saha, Rajib
We solve the general problem of mixing of electromagnetic and scalar or pseudoscalar fields coupled by axion-type interactions ${\cal L}_{int} =g_{\phi} \phi \epsilon_{\mu \nu \a \b}F^{\mu \nu}F^{\a...
Probing Light Pseudoscalars with Light: Propagation, Resonance and Spontaneous Polarization (2004)
Das, Sudeep, Jain, Pankaj, Ralston, John P., Saha, Rajib
Radiation propagating over cosmological distances can probe light weakly interacting pseudoscalar (or scalar) particles. The existence of a spin-0 field changes the dynamical symmetries of...
Two Graviton Production at $e^+e^-$ and Hadron Hadron Colliders in the Randall-Sundrum Model (2004)
We compute the pair production cross section of two Kaluza Klein modes in the Randall-Sundrum model at $e^+e^-$ and hadron hadron colliders. These processes are interesting because they get dominant...
The Virgo Alignment Puzzle in Propagation of Radiation on Cosmological Scales (2003)
Ralston, John P., Jain, Pankaj
We reconsider analysis of data on the cosmic microwave background on the largest angular scales. Temperature multipoles of any order factor naturally into a direct product of axial quantities and...
A comprehensive test of order choice theory: recent evidence from the NYSE (2003)
Ellul, Andrew, Holden, Craig W., Jain, Pankaj, Jennings, Robert
We perform a comprehensive test of order choice theory from a sample period when the NYSE trades in decimals and allows automatic executions. We analyze the decision to submit or cancel an order or...
We present a detailed statistical study of the observed anisotropy in radio polarizations from distant extragalactic objects. This anisotropy was earlier found by Birch (1982) and reconfirmed by Jain...
The Proton Electromagnetic Form Factor $F_2$ and Quark Orbital Angular Momentum (2003)
Jain, Pankaj, Ralston, John P.
We analyze the proton electromagnetic form factor ratio $R(Q^{2})=QF_2(Q^{2})/F_1(Q^{2})$ as a function of momentum transfer $Q^{2}$ within perturbative QCD. We find that the prediction for...
QCD Form Factors and Hadron Helicity Non-Conservation (2003)
Ralston, John P., Jain, Pankaj
Recent data for the ratio $R(Q)= QF_{2}(Q^{2})/F_{1}(Q^{2})$ shocked the community by disobeying expectations held for 50 years. We examine the status of perturbative QCD predictions for...
Jain, Pankaj, Narain, Gaurav, Sarala, S.
We introduce several coordinate invariant statistical procedures in order to test for local alignment of polarizations. A large scale alignment of optical polarizations from distant QSOs has recently...
2003, Determinants of Order Choice on the New York Stock Exchange, working paper (2003)
Andrew Ellul, Craig W. Holden, Pankaj Jain, Robert Jennings
Using New York Stock Exchange order data, we examine the determinants of order choices. We consider order type (market and limit), order side, automatic execution vs. the auction process, order...
Ultra-High Energy Quenching of the LPM Effect: Implications for GZK-Violating Events (2002)
Ralston, John P., Razzaque, Soebur, Jain, Pankaj
Cosmic rays in the regime of 10^19-10^20 eV should not exist, according to the GZK bound. Conflicts between data and the bound have led to suggestions that laws of physics must be modified. We find...
Exploring the Micro-Structure of the Proton: from Form Factors to DVCS (2002)
Ralston, John P., Jain, Pankaj
For a long time people made the mistake of thinking the proton was understood. New experiments, ranging from form factors to deeply virtual Compton scattering, promise a new era of highly informative...
Buniy, Roman V., Jain, Pankaj, Ralston, John P.
Skew density matrices can be diagonalized to yield probability interpretation. The power-counting prediction of perturbative QCD is found consistent with recent CEBAF data on $F_2(Q^2)/F_1(Q^2)$
Ralston, John P., Buniy, Roman V., Jain, Pankaj
A new picture is given of generalized parton distributions probed in experiments in which the probe scale $Q^{2}$ and the momentum transfer $\DD^{2}$ are well separated. Application of this picture...
Electromagnetic Polarization Effects due to Axion Photon Mixing (2002)
Jain, Pankaj, Panda, Sukanta, Sarala, S.
We investigate the effect of axions on the polarization of electromagnetic waves as they propagate through astronomical distances. We analyze the change in the dispersion of the electromagnetic wave...
Carpal alignment in distal radial fractures (2002)
Gupta, Ajay, Batra, Sumit, Jain, Pankaj, Sharma, Satish
Abstract Background Carpal malalignment following the malunited distal radial fracture is described to develop as an adaptation to realign the hand to the malunion. It worsens gradually after healing...
Angular Dependence of Neutrino Flux in KM3 Detectors in Low Scale Gravity Models (2002)
Jain, Pankaj, Kar, Supriya, McKay, Douglas W., Panda, Sukanta, Ralston, John P.
Cubic kilometer neutrino telescopes are capable of probing fundamental questions of ultra-high energy neutrino interactions. There is currently great interest in neutrino interactions caused by...
Universality and Scale Invariance in Hourly Rainfall (2002)
Jain, Pankaj, Jain, Suman, Shaheen, Gauher
We show that the hourly rainfall rate distribution can be described by a simple power law to a good approximation. We show that the exponent of the distribution in tropics is universal and is equal...
Jain, Pankaj, Kar, Supriya, Panda, Sukanta
The origin of the ultra high energy cosmic ray (UHECR) showers has remained as a mystery among particle physicists and astrophysicists. In low scale gravity models, where the neutrino-nucleon cross...
Exclusive Hadronic Processes and Color Transparency (2001)
Jain, Pankaj, Ralston, John P.
We review the current status of high energy exclusive processes and color transparency.
Neutrino-Induced Giant Air Showers in Large Extra Dimension Models (2000)
Jain, Ambar, Jain, Pankaj, McKay, Douglas W., Ralston, John P.
In models based on large extra dimensions where massive spin 2 exchange can dominate at high energies, the neutrino-proton cross section can rise to typical hadronic values at energies above 10^20...
Cosmic Birefringence within the Framework of Heterotic String Theory (2000)
Das, Prasanta, Jain, Pankaj, Mukherji, Sudipta
Low energy string theory predicts the existence of an axion field which can lead to cosmic birefringence. We solve the electromagnetic wave equations in the presence of such an axion and a dilaton...
Correlation of Ultra High Energy Cosmic Rays with Compact Radio Loud Quasars (2000)
Virmani, Amitabh, Bhattacharya, Sibesh, Jain, Pankaj, Razzaque, Soebur, Ralston, John P., McKay, Douglas W.
Angular correlations of ultra-high energy cosmic rays with cosmologically distant sources may provide clues to these mysterious events. We compare cosmic ray tracks with energies above $ 10^{20}eV$...
Progress in Perturbative Color Transparency (2000)
Ralston, John P., Jain, Pankaj, Kundu, Bijoy, Samuelsson, Jim
A brief overview of the status of color transparency experiments is presented. We report on the first complete calculations of color transparency within a perturbative QCD framework. We also comment...
A Circular Statistical Method for Extracting Rotation Measures (2000)
We propose a new method for the extraction of Rotation Measure from spectral polarization data. The method is based on maximum likelihood analysis and takes into account the circular nature of the...
Spectral Dependence of Polarized Radiation due to Spatial Correlations (2000)
Bhuvalka, Krishna, Jain, Pankaj
We study the polarization of light emitted by spatially correlated sources. We show that in general polarization acquires nontrivial spectral dependence due to spatial correlations. The spectral...
Oscillating Color Transparency in $\pi A\to \pi p (A-1)$ and $\gamma A\to \pi N (A-1)$ (2000)
Jain, Pankaj, Kundu, Bijoy, Ralston, John P.
The energy dependence of $90^o$ $cm$ fixed angle scattering of $\pi p \to \pi' p'$ and $\gamma p\to \pi^+ n$ at large momentum transfer are found to be well described in terms of interfering short...
Polarized Electromagnetic Radiation from Spatially Correlated Sources (1999)
Agarwal, Abhishek, Jain, Pankaj, Rai, Jagdish
We consider the effect of spatial correlations on sources of polarized electromagnetic radiation. The sources, assumed to be monochromatic, are constructed out of dipoles aligned along a line such...
Ralston, John P., Jain, Pankaj, Kundu, Bijoy, Samuelsson, Jim
Color transparency is a prediction of perturbative QCD. Yet detailed calculations have been lacking, and aspects of the required factorization have been controversial. We report on the first complete...
Hadronic electromagnetic form factors and color transparency (1999)
Kundu, Bijoy, Jain, Pankaj, Ralston, John P., Samuelsson, Jim
We review the current status of electromagnetic form factor calculations in perturbative QCD. There is growing evidence that factorization prescriptions involving a transverse coordinate integration,...
Core, Mantle, Crust: Imaging the Earth's Interior with Ultra-High Energy Neutrino Tomography (1999)
Ralston, John P., Jain, Pankaj, Frichter, George M.
We report on the feasibility of using an isotropic flux of cosmic neutrinos in the energy range of 10 to 10,000 TeV to study the interior geophysical structure of the Earth. The angular distribution...
A Review of pQCD Calculations of Electromagnetic Form Factors of Hadrons (1999)
Jain, Pankaj, Kundu, Bijoy, Li, Hsiang-nan, Ralston, John P., Samuelsson, Jim
We review the current status of perturbative QCD calculation of hadronic electromagnetic form factors.
Dynamical Gauge Symmetry Breaking in $SU(3)_L\otimes U(1)_X$ Extension of the Standard Model (1999)
We study the $SU(3)_L\otimes U(1)_X$ extension of the Standard model with a strong U(1) coupling. We argue that current experiments limit this coupling to be relatively large. The model is...
New Results on Perturbative Color Transparency in Quasi-Exclusive Electroproduction (1999)
Jain, Pankaj, Kundu, Bijoy, Ralston, John P., Samuelsson, Jim
We review the perturbative QCD formalism of hadronic electromagnetic form factors and the color transparency ratio for quasi-exclusive electroproduction of the proton and pion from nuclear targets....
Neutrino Absorption Tomography of the Earth's Interior using Isotropic Ultra-high Energy Flux (1999)
Jain, Pankaj, Ralston, John P., Frichter, George M.
We study the feasibility of using an isotropic flux of cosmic neutrinos in the energy range of 10 to 10000 TeV to study the interior structure of Earth. The angular distribution of events in a $\sim...
Perturbative Color Transparency in Electroproduction Experiments (1998)
Kundu, Bijoy, Samuelsson, Jim, Jain, Pankaj, Ralston, John P.
We calculate quasi-exclusive scattering of a virtual photon and a proton or pion in nuclear targets. This is the first complete calculation of ``color transparency" and "nuclear filtering " in...
Covariant Symmetry Classifications for Observables of Cosmological Birefringence (1998)
Ralston, John P., Jain, Pankaj
Polarizations of electromagnetic waves from distant galaxies are known to be correlated with the source orientations. These quantities have been used to search for signals of cosmological...
Das, Prashanta, Jain, Pankaj, McKay, Douglas W.
We study the $p\bar p$ production and decay of exotic quarks that are predicted by the SU(3)$\times$U(1) extension of the Standard Model. We show that recent experimental searches for SUSY particles...
The perturbative proton form factor reexamined (1998)
Kundu, Bijoy, Li, Hsiang-nan, Samuelsson, Jim, Jain, Pankaj
We recalculate the proton Dirac form factor based on the perturbative QCD factorization theorem which includes Sudakov suppression. The evolution scale of the proton wave functions and the infrared...
Anisotropy in the Distribution of Galactic Radio Polarizations (1998)
Jain, Pankaj, Ralston, John P.
Radiation traversing the observable universe provides powerful ways to probe anisotropy of electromagnetic propagation. A controversial recent study claimed a signal of dipole character. Here we test...
Ralston, John P., Jain, Pankaj, Nodland, Borge
We discuss a new mechanism which could cause a rotation of polarization of electromagnetic waves due to magnetic fields on cosmological scales. The effect is due to the geometrical phase of...
Single Top from Technipion Production (1997)
Baringer, Philip, Jain, Pankaj, Mckay, Douglas W., Smith, Lesley L.
We investigate the contribution of technicolor mechanisms to the production of single top quarks at hadron colliders. Technipions with mass larger than the top mass will decay predominantly to a top...
Object tracking using affine structure for point correspondences (1997)
Singh Manku, Gurmeet, Jain, Pankaj, Aggarwal, Amit, Lalit Kumar, Banerjee, Subhashis
A new object tracking algorithm based on affine structure has been developed and it is shown that its performance is better than that of a Kalman filter based correlation tracker. The algorithm is...
Object tracking using affine structure for point correspondences (1997)
Gurmeet Singh Manku, Pankaj Jain, Amit Aggarwal, Lalit Kumar, Subhashis Banerjee
A new object tracking algorithm based on affine structure has been developed and it is shown that the performance is better than that of a Kalman filter based correlation tracker. The algorithm is...
Object Tracking using Affine Structure for Point Correspondences (1997)
Gurmeet Singh Manku, Pankaj Jain, Amit Aggarwal, Lalit Kumar, Subhashis Banerjee
A new object tracking algorithm based on affine structure has been developed and it is shown that the performance is better than that of a Kalman filter based correlation tracker. The algorithm is...
Technicolor Mechanisms for Single Top Production (1996)
Smith, Lesley L., Jain, Pankaj, McKay, Douglas W.
We investigate the contribution of technicolor mechanisms to the production of single top quarks at hadron colliders. We find that a promising candidate process is gluon-gluon fusion to produce a...
Quantum Color Transparency and Nuclear Filtering (1995)
Jain, Pankaj, Pire, Bernard, Ralston, John P.
Color transparency is the proposal that under certain circumstances the strong interactions can be reduced in magnitude. We give a comprehensive review of the physics, which hinges on the interface...
Dynamical Generation of Light Fermions (1995)
We show that composite fermions with masses much smaller than the scale of confinement arise naturally in certain models which admit dynamical breakdown of chiral symmetry. The models are such that...
Smith, Lesley L., Jain, Pankaj, McKay, Douglas W.
The Schwinger-Dyson equation for the quark self-energy is solved for the case of the third and fourth quark generations. The exchanges of standard model gluons and Higgs bosons are taken into...
Smith, Lesley L., Jain, Pankaj, McKay, Douglas W.
The Landau gauge Schwinger-Dyson Equation for the quark self-energy is solved in the quenched ladder approximation for several cases of one- and two-quark-generations. The exchanges of Standard Model...
Jain, Pankaj, Ralston, John P.
We study the energy and nuclear A dependence of the hadronic production of heavy quarkonia. We review theoretical ideas which have been put forward, seeking a consistent global picture reconciling...
Heavy Meson Radiative Decays and Light Vector Meson Dominance (1994)
Jain, Pankaj, Momen, Arshad, Schechter, Joseph
Electromagnetic interactions are introduced in the effective chiral Lagrangian for heavy mesons which includes light vector particles. A suitable notion of vector meson dominance is formulated. The...
Three Successful Tests of Color Transparency and Nuclear Filtering (1993)
Jain, Pankaj, Ralston, John P.
We review the theoretical formalism for hard exclusive processes in a nuclear medium. Theory suggests that these processes will show the very interesting phenomena of color transparency and nuclear...
Isospin Multiplet Structure in Ultra--Heavy Fermion Bound States (1993)
Jain, Pankaj, Sommerer, Alan J., McKay, Douglas W., Spence, J. R., Vary, J. P., Young, Bing--Lin
The coupled Bethe--Salpeter bound state equations for a $Q\bar Q$ system, where $Q=(U,D)$ is a degenerate, fourth generation, super--heavy quark doublet, are solved in several ladder approximation...
Evidence for Observation of Color Transparency in Proton Nucleus Collisions (1993)
Jain, Pankaj, Ralston, John P.
We introduce a data analysis procedure for color transparency experiments which is considerably less model dependent than the transparency ratio method. The new method is based on fitting the shape...
Jain, Pankaj, Ralston, John P.
We review a new systematic data analysis procedure for color transparency experiments and its application to the proton nucleus scattering experiment. The method extracts the hard scattering rate as...
Measuring Chirally Odd Wave Functions with Helicity Flip Form Factors (1993)
Jain, Pankaj, Ralston, John P.
We consider the role of chirally odd wave functions in hard exclusive reactions. Such wave functions have the quarks oriented in the opposite helicity configuration from those assumed in the...
Systematic Analysis Method for Color Transparency Experiments (1993)
Jain, Pankaj, Ralston, John P.
We introduce a data analysis procedure for color transparency experiments which is considerably less model dependent than the transparency ratio method. The new method is based on fitting the shape...
High Energy Hadronic Helicity Violation: What Helicity Flip Form Factors Measure (1992)
Jain, Pankaj, Ralston, John P., Pire, Bernard
Orbital angular momentum is crucial for the description of several process at large momentum transfer in the impulse approximation in perturbative QCD. We review the mechanism of independent...
Consistent Quantum Expansion Around Soliton Solutions (1992)
I show that a standard application of the semiclassical techniques to 1+1 dimensional field theories, as originally discussed by Dashen, Hasslacher and Neveu, explicitly violates the Poincare...
Interpretation of the Color Transparency Experiments (1992)
Jain, Pankaj, Ralston, John P.
We argue that the experimentally measured color transparency ratio is directly related to the interacting hadron wave function at small transverse separation, $b^2
Infrared Corrections to the Top Quark Width (1992)
Jain, Pankaj, McKay, Douglas W., Munczek, Herman J.
We present a nonperturbative analysis of the top quark propagator using the Schwinger Dyson equation in the ladder approximation including both the electroweak as well as the infrared QCD effects. We...
q\bar q$ Bound States in the Bethe-Salpeter Formalism (1992)
Jain, Pankaj, Munczek, Herman J.
We solve the Bethe-Salpeter equation in order to determine the spectrum of pseudoscalar and vector meson bound states for light as well as heavy quarks. The fermion propagators are obtained by...
Carpal alignment in distal radial fractures
Gupta, Ajay, Batra, Sumit, Jain, Pankaj, Sharma, Satish Kumar
Carpal alignment in distal radial fractures
Gupta, Ajay, Batra, Sumit, Jain, Pankaj, Sharma, Satish Kumar
Order dynamics: Recent evidence from the NYSE
Ellul, Andrew, Holden, Craig W., Jain, Pankaj, Jennings, Robert
The Effectiveness of Teacher Resource Centre Strategy
Fairhurst, Genevieve, Gibbs, William, Jain, Pankaj, Khatete, David, Knamiller, Gary, Welford, Geoff, ...
Teaching/Communication/Extension/Profession,
DNA-guided hepatitis B treatment: Viral load is insufficient with few exceptions
In DNA-guided hepatitis B treatment, viral load is insufficient, and requires other viral markers for treatment of hepatitis B patients as in patients with acute exacerbation of chronic hepatitis B,...
Should we redefine large common bile duct stone?
Sharma, Shyam Sunder, Jain, Pankaj
The definition of large stones is not clear ranging from 10 mm to 15 mm and does not include the lower common bile duct (CBD) diameter. Three hundred and four patients who underwent endoscopic...
Jain, Pankaj, Nijhawan, Sandeep
Patients of end stage renal disease on maintenance hemodialysis were enrolled to study the prevalence of occult and dual hepatitis B virus (HBV) and hepatitis C virus (HCV) infection and non-occult...
Improving liquidity through efficient stock market structure and operational design
This study is an analysis of the secondary market liquidity on equity markets around the world. The role of operational design of stock exchanges in enhancing liquidity is assessed. The market...