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Glue constraining asymmetries in W, $γ$ or Z production at CERN LHC

P. Chiappetta·G. J. Gounaris·J. Layssac·F. M. Renard
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Abstract

We propose a class of forward-backward asymmetries with respect to the subprocess c.m. scattering angle in $V$+jet production at hadron colliders, with V being any of (W, Z, $γ$, H), which are directly proportional to the gluon distribution $g(x)$. The informations that these asymmetries can provide are complementary of those reachable from measurements of the transverse momentum and/or the rapidity distributions of a $V$ in kinematical regimes where gluon scattering subprocesses dominate. The accuracy which can be reached in the W, Z and $γ$ cases, at the upgraded Tevatron and at LHC, should allow a considerable improvement of our knowledge of the gluon distribution function, especially at large x.

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P. Chiappetta, G. J. Gounaris, J. Layssac, F. M. Renard. 1998-09-29. Glue constraining asymmetries in W, $γ$ or Z production at CERN LHC. https://doi.org/10.1103/physrevd.59.014016

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