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53 papers · 2 filters
Two-loop QCD corrections for 2 to 2 parton scattering processes
Maria Elena Tejeda-Yeomans
A summary is presented of the most recent matrix elements for massless 2 to 2 scattering processes calculated at two loops in QCD perturbation theory together with a brief review o…
Instanton contribution to scalar charmonium and glueball decays
Valeriu Zetocha, Thomas Schaefer
We study instanton contributions to hadronic decays of the scalar glueball, the pseudoscalar charmonium state , and the scalar charmonium state . Hadronic decays of the $…
Hard Exclusive Baryon-Antibaryon Production in Two-Photon Collisions
Carola F. Berger, Wolfgang Schweiger
We study baryon pair production in two-photon collisions, gamma gamma -> B Bbar, within perturbative quantum chromodynamics, treating baryons as quark-diquark systems. We extend pr…
Solar Neutrinos Before and After KamLAND
John N. Bahcall, M. C. Gonzalez-Garcia, Carlos Pena-Garay
We use the recently reported KamLAND measurements on oscillations of reactor anti-neutrinos, together with the data of previously reported solar neutrino experiments, to show that:…
Matter-induced modification of resonances at RHIC freezeout
E. V. Shuryak, G. E. Brown
We discuss the physical effects causing a modification of resonance masses, widths and even shapes in a dilute hadronic gas at late stages of heavy ion collisions. We quantify the…
NLO corrections to differential cross sections for pseudo-scalar Higgs boson production
B. Field, J. Smith, M. E. Tejeda-Yeomans +1
We have computed the full next-to-leading (NLO) QCD corrections to the differential distributions for pseudo-scalar Higgs (A) production at large hadron colliders.…