Large $p_T$ Hadroproduction of $Z$ as a Probe of Gluon Distribution inside Proton

Details Large $p_T$ Hadroproduction of $Z$ as a Probe of Gluon Distribution inside Proton Large $p_T$ Hadroproduction of $Z$ as a Probe of Gluon Distribution inside Proton

1995-06-23

arxiv.org/abs/hep-ph/9506404v2

Phys.Lett. B366 (1996) 293

Physics

High Energy Physics

High Energy Physics - Phenomenology

(a) 13 pages(LaTeX) + 1 figure ps file(3 pages):compressed, uuencoded (b) accepted by Phys.Lett.B. (c) some figures are combin

Scientific paper

10.1016/0370-2693(95)01315-6

The transverse momentum distribution of single vector boson production at hadron colliders provides useful ways of testing the Standard Model and searching new physics beyond the Standard Model. We study large $p_{_T}$ hadroproduction of $Z$-boson as a probe of gluon distributions inside proton. We investigate how to get initial gluon-involving contributions, or how to subtract quark-quark (or -antiquark) contributions from total cross section. We also investigated the simultaneous measurement of the rapidity and the transverse momentum of the produced $Z$ boson, to obtain momentum fractions of initial partons. And we extracted relevant uncertainties involving in experimental and theoretical analyses. This large $p_{_T}$ hadroproduction of $Z$ can be used as constraints on analyses of global parton (gluon and quarks) distribution functions inside proton.

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