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Order-[alpha][sub [ital s]][sup 2] QCD corrections to the reaction [ital p]+[ital [bar p]][r arrow][ital W][sup +]+[gamma]+[ital X] in the soft-plus-virtual-gluon approximation

Journal Article · · Physical Review, D (Particles Fields); (United States)
;  [1];  [2]
  1. Institute for Theoretical Physics, State University of New York at Stony Brook, Stony Brook, New York 11794-3840 (United States)
  2. Instituut Lorentz, University of Leiden, P.O. Box 9506, 2300 RA Leiden, South Holland (Netherlands)
We examine the sensitivity of the total cross section and inclusive photon distributions for the reaction [ital p]+[ital [bar p]][r arrow][ital W][sup +]+[gamma]+[ital X] to changes in the QCD renormalization scale, mass factorization scale, and mass factorization scheme in [ital O]([alpha][sub [ital s]]). Based on these findings, a higher-order-[alpha][sub [ital s]] approximation prescription is proposed and, by readjusting the QCD mass factorization and renormalization scales, [ital O]([alpha][sub [ital s]][sup 2]) predictions are obtained for the reaction cross sections and inclusive photon distributions for the CERN Super Proton Synchrotron (S[ital p[bar p]]S) ([radical][ital S] =0.63 TeV) and Fermilab Tevatron ([radical][ital S] =1.8 TeV) colliders.
OSTI ID:
6644785
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:9; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English