Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-02-04
Phys.Rev.C65:064901,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 11 figures
Scientific paper
10.1103/PhysRevC.65.064901
We predict W and Z transverse momentum distributions from proton-proton and nuclear collisions at RHIC and LHC. A resummation formalism with power corrections to the renormalization group equations is used. The dependence of the resummed QCD results on the non-perturbative input is very weak for the systems considered. Shadowing effects are discussed and found to be unimportant at RHIC, but important for LHC. We study the enhancement of power corrections due to multiple scattering in nuclear collisions and numerically illustrate the weak effects of the dependence on the nuclear mass.
Fai George
Zhang Xiaofei
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