Evidence for Polarization of Gluons in the Proton

dc.creatorde Florian, Daniel Enrique
dc.creatorSassot, Rodolfo
dc.creatorStratmann, Marco
dc.creatorVogelsang, Werner
dc.date.accessioned2017-06-09T21:27:12Z
dc.date.available2017-06-09T21:27:12Z
dc.date.created2017-06-09T21:27:12Z
dc.date.issued2014-07
dc.identifierde Florian, Daniel Enrique; Sassot, Rodolfo; Stratmann, Marco; Vogelsang, Werner; Evidence for Polarization of Gluons in the Proton; American Physical Society; Physical Review Letters; 113; 7-2014; 1-5; 012001
dc.identifier0031-9007
dc.identifierhttp://hdl.handle.net/11336/17948
dc.description.abstractWe discuss the impact of recent high-statistics Relativistic Heavy Ion Collider data on the determination of the gluon polarization in the proton in the context of a global QCD analysis of polarized parton distributions. We find evidence for a nonvanishing polarization of gluons in the region of momentum fraction and at the scales mostly probed by the data. Although information from low momentum fractions is presently lacking, this finding is suggestive of a significant contribution of gluon spin to the proton spin, thereby limiting the amount of orbital angular momentum required to balance the proton spin budget.
dc.languageeng
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevLett.113.012001
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.012001
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1404.4293
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectSpin
dc.subjectGluon
dc.titleEvidence for Polarization of Gluons in the Proton
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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