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On the dynamical determination of strange parton distributions


Jimenez-Delgado, P (2010). On the dynamical determination of strange parton distributions. In: XVIII International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2010, Convitto della Calza, Firenze, Italy, 19 April 2010 - 23 April 2010.

Abstract

The dynamical parton distributions of the nucleon are generated radiatively from positive definite (valencelike) input distributions at an optimally chosen low resolution scale (Q_0^2 < 1 GeV^2). For the strange distribution in particular, it has been assumed that vanishing strange input distributions at this low scale is an appropriate choice. By confronting predictions derived from our (GJR08) NLO dynamical parton distributions with recent neutrino dimuon production measurement from NuTeV we show that this is indeed the case, and that little improvement is achieved by using a more general ansatz. Nevertheless, the data induce an asymmetry in the strange sea which is found to be small and positive in agreement with previous results.

The dynamical parton distributions of the nucleon are generated radiatively from positive definite (valencelike) input distributions at an optimally chosen low resolution scale (Q_0^2 < 1 GeV^2). For the strange distribution in particular, it has been assumed that vanishing strange input distributions at this low scale is an appropriate choice. By confronting predictions derived from our (GJR08) NLO dynamical parton distributions with recent neutrino dimuon production measurement from NuTeV we show that this is indeed the case, and that little improvement is achieved by using a more general ansatz. Nevertheless, the data induce an asymmetry in the strange sea which is found to be small and positive in agreement with previous results.

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Additional indexing

Item Type:Conference or Workshop Item (Paper), not refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Language:English
Event End Date:23 April 2010
Deposited On:02 Mar 2011 14:35
Last Modified:14 Aug 2016 06:22
Publisher:Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Series Name:PoS - Proceedings of Science
Additional Information:PoS(DIS 2010)114
Publisher DOI:10.1016/j.physletb.2010.04.071
Official URL:http://pos.sissa.it/archive/conferences/106/114/DIS%202010_114.pdf
Related URLs:http://dis2010.to.infn.it/
http://pos.sissa.it/cgi-bin/reader/conf.cgi?confid=106
http://arxiv.org/abs/1006.5910
Permanent URL: http://doi.org/10.5167/uzh-41858

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