Physical gluons and high-ET jets

Martin, A.D.; Roberts, R.G.; Stirling, W.J.; Thorne, R.S.

doi:10.1016/j.physletb.2004.10.040

Physical gluons and high-ET jets

Martin, A.D.; Roberts, R.G.; Stirling, W.J.; Thorne, R.S.

Authors

A.D. Martin

R.G. Roberts

W.J. Stirling

R.S. Thorne

Abstract

We propose a more physical parameterization of the gluon distribution for global parton analyses of deep inelastic and related hard scattering data. In the new parameterization the gluon distribution at large x in the -scheme is driven by the valence quarks, which naturally produces a shoulder-like form at high x, and hence produces a better description of the Tevatron inclusive jet data. We perform the new analysis at both NLO and NNLO. The improvement is found to be even better at NNLO than at NLO. We make available the new sets of NLO and NNLO partons, which we denote by MRST2004.

Citation

Martin, A., Roberts, R., Stirling, W., & Thorne, R. (2004). Physical gluons and high-ET jets. Physics Letters B, 604(1-2), 61-68. https://doi.org/10.1016/j.physletb.2004.10.040

Journal Article Type	Article
Publication Date	Dec 1, 2004
Deposit Date	Jan 21, 2008
Journal	Physics Letters B
Print ISSN	0370-2693
Publisher	Elsevier
Peer Reviewed	Peer Reviewed
Volume	604
Issue	1-2
Pages	61-68
DOI	https://doi.org/10.1016/j.physletb.2004.10.040
Publisher URL	http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVN-4DPXH97-1&_user=121711&_coverDate=12%2F16%2F2004&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000009978&_version=1&_urlVersion=0&_userid=121711&md5=36b1239b3c148cb104122ec10200c087