Perturbative generation of a strange-quark asymmetry in the nucleon
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Perturbative generation of a strange-quark asymmetry in the nucleon

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Perturbative generation of a strange-quark asymmetry in the nucleon

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dc.contributor.author Catani, Stefano
dc.contributor.author de Florian, Daniel
dc.contributor.author Rodrigo García, Germán Vicente
dc.contributor.author Vogelsang, Werner
dc.date.accessioned 2015-06-19T10:36:25Z
dc.date.available 2015-06-19T10:36:25Z
dc.date.issued 2004
dc.identifier.uri http://hdl.handle.net/10550/44591
dc.description.abstract We point out that perturbative evolution in QCD at three loops generates a strange-antistrange asymmetry s(x)-sbar(x) in the nucleon's sea just from the fact that the nucleon has non-vanishing up and down quark valence densities. The recently computed three-loop splitting functions allow for an estimate of this effect. We find that a fairly sizable asymmetry may be generated. Results for analogous asymmetries in the heavy-quark sector are also presented.
dc.language.iso eng
dc.relation.ispartof Physical Review Letters, 2004, vol. 93, num. 15, p. 152003
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Catani, Stefano de Florian, Daniel Rodrigo García, Germán Vicente Vogelsang, Werner 2004 Perturbative generation of a strange-quark asymmetry in the nucleon Physical Review Letters 93 15 152003
dc.subject Física
dc.title Perturbative generation of a strange-quark asymmetry in the nucleon
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-06-19T10:36:26Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevLett.93.152003
dc.identifier.idgrec 072218

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