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13 papers · 2 filters
Nobel Leptons
K. V. L. Sarma
The 1995 Nobel Prize in Physics is shared equally by the American physicists Frederick J. Reines and Martin L. Perl for their pioneering experimental contributions to lepton physic…
J/psi production via fragmentation at HERA
R. M. Godbole, D. P. Roy, K. Sridhar
We compute the contributions to large- production at HERA coming from fragmentation of gluons and charm quarks. We find that the charm quark fragmentation contribution d…
Singlet-Higgs-Boson Signals at Hadron Colliders
Anindya Datta, Amitava Raychaudhuri, Sreerup Raychaudhuri +1
Many extensions of the Standard Model include singlet higgs bosons, , and also vectorlike fermions which couple to it. The production and detection pos…
Sharpening up the Charged Higgs Boson Signature using Tau Polarization at LHC
Sreerup Raychaudhuri, D. P. Roy
The opposite states of the polarization resulting from the charged Higgs boson and the boson decays can be exploited to enhance the signal in the inclusive 1-prong…
Parton Gas Model for the Nucleon Structure Functions
R. S. Bhalerao
A phenomenological model for the nucleon structure functions is presented. Visualising the nucleon as a cavity filled with parton gas in thermal equilibrium and parametrizing the e…
The Top Story
D. P. Roy
This is an overview of top quark search, with particular emphasis on the more recent results. After a brief introduction to the basic constituents of matter and their interactions,…
New Bounds on R-parity Violating Couplings
Carl Carlson, Probir Roy, Marc Sher
We use information from rare nonleptonic decays of heavy-quark mesons to put new bounds on the magnitudes of certain product combinations of baryon nonconserving R-parity violating…
Model of Four Light Neutrinos in the Light of All Present Data
Ernest Ma, Probir Roy
Motivated by existing and recent data on possible neutrino oscillations, we propose a model of four light neutrinos (, and a singlet ) with a pattern of masses…
Charged Higgs Boson Search at the Tevatron Upgrade Using Tau Polarization
Sreerup Raychaudhuri, D. P. Roy
We explore the prospect of charged Higgs boson search in top quark decay at the Tevatron collider upgrade, taking advantage of the opposite states of polarization resulting fro…
PRODUCTION OF DRELL--YAN PAIRS IN HIGH ENERGY NUCLEON--NUCLEON COLLISIONS
S. Gavin, R. Kauffman, S. Gupta +3
We compute cross sections for the Drell-Yan process in N--N collisions at next-to-leading order in . The mass, rapidity, transverse momentum, and angular dependence of these c…
Quarkonium production in hadronic collisions
R. Gavai, D. Kharzeev, H. Satz +3
We summarize the theoretical description of charmonium and bottonium production in hadronic collisions and compare it to the available data from hadron-nucleon interactions. With t…
Beyond Standard Model: Report of Working Group II
Anjan S. Joshipura, Probir Roy
Working group II at WHEPP3 concentrated on issues related to the supersymmetric standard model as well as SUSY GUTS and neutrino properties. The projects identified by various work…
Jet Missing PT for Quark-Gluon Plasma Thermometry
Sourendu Gupta
At the LHC, where hard multi-jet events are common, large imbalances in the total jet-\pt{} can arise due to the interaction of jets with the plasma formed in heavy-ion collisions.…