arXiv:hep-ph/0009028·v1·High Energy Physics — Phenomenology
Asymmetry of p(->)+p(->)->gamma+jet+X process and problem of Delta G
G.P.Skoro (1)🇷🇸 · M.V.Tokarev (2) ((1) Faculty of Physics, University of Belgrade, Institute of Nuclear Sciences "Vinca" Belgrade, Yugoslavia, (2) Laboratory of High Energies, Joint Institute for Nuclear Research, Dubna, Moscow region, Russia)🇷🇺
Abstract
The gamma +jet production in p(->)-p(->) collisions at high energies is studied. Double-spin asymmetry A{LL} of the process is calculated by using Monte Carlo code SPHINX. The predictions for A{LL} of the gamma +jet production in the p(->)-p(->) collisions using the spin-dependent gluon distributions with positive and negative sign of are made at RHIC energies. A possibility to extract the spin-dependent gluon distributions Delta G at STAR experiment and to discriminate between different theoretical scenarios is discussed.
Comments: 15 pages, 11 Postscript figures