Nuclear effect in p-A Drell-Yan process with QCD corrections

Citation
Ym. Zhang et al., Nuclear effect in p-A Drell-Yan process with QCD corrections, HIGH EN P N, 24(9), 2000, pp. 839-844
Citations number
5
Categorie Soggetti
Physics
Journal title
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
ISSN journal
02543052 → ACNP
Volume
24
Issue
9
Year of publication
2000
Pages
839 - 844
Database
ISI
SICI code
0254-3052(200009)24:9<839:NEIPDP>2.0.ZU;2-T
Abstract
Taking into account perturbative QCD alpha(s)-order approximation, using do uble Q(2) rescaling model, the cross section ratios of Drell-Yan process in pA collision to p-D collision are calculated. Comparing these results with the ratios without QCD corrections, it shows the nuclear effect functions R-QCD(x(A), Q(2)) are suppressed by different extent for different nucleus, in different ranges of x(A(T)) . Comparing with the E772 experiment data, R-QCD(x(A), Q(2)) are better fitted than R(x(A), Q(2)). It is shown that th e QCD corrections are interesting in studying the nuclear effect of DY proc ess. After taking into account of alpha(s)-order corrections, double Q(2)-r escaling model is still effective.