[hep-ph/0702268] The Strange Parton Distribution of the Nucleon: Global Analysis and Appli

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High Energy Physics - Phenomenology

arXiv:hep-ph/0702268 (hep-ph)
[Submitted on 26 Feb 2007 (v1), last revised 9 Apr 2007 (this version, v2)]

Title:The Strange Parton Distribution of the Nucleon: Global Analysis and Applications

Authors:H.L. Lai, P. Nadolsky, J. Pumplin, D. Stump, W.K. Tung, C.-P. Yuan
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Abstract: The strangeness degrees of freedom in the parton structure of the nucleon are explored in the global analysis framework, using the new CTEQ6.5 implementation of the general mass perturbative QCD formalism of Collins. We systematically determine the constraining power of available hard scattering experimental data on the magnitude and shape of the strange quark and anti-quark parton distributions. We find that current data favor a distinct shape of the strange sea compared to the isoscalar non-strange sea. A new reference parton distribution set, CTEQ6.5S0, and representative sets spanning the allowed ranges of magnitude and shape of the strange distributions, are presented. Some applications to physical processes of current interest in hadron collider phenomenology are discussed.
Comments: 19 pages; revised version submitted to JHEP
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: ANL-HEP-PR-07-14, MSU-HEP-07012
Cite as: arXiv:hep-ph/0702268
  (or arXiv:hep-ph/0702268v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0702268
Journal reference: JHEP 0704:089,2007
Related DOI: https://doi.org/10.1088/1126-6708/2007/04/089

Submission history

From: Hung-Liang Lai [view email]
[v1] Mon, 26 Feb 2007 20:24:17 UTC (808 KB)
[v2] Mon, 9 Apr 2007 17:40:54 UTC (809 KB)
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