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dc.contributor.author
Catani, Stefano
dc.contributor.author
de Florian, Daniel Enrique
dc.contributor.author
Rodrigo, Germán
dc.contributor.author
Vogelsang, Werner
dc.date.available
2019-04-26T17:22:45Z
dc.date.issued
2004-10
dc.identifier.citation
Catani, Stefano; de Florian, Daniel Enrique; Rodrigo, Germán; Vogelsang, Werner; Perturbative generation of a strange-quark asymmetry in the nucleon; American Physical Society; Physical Review Letters; 93; 15; 10-2004; 1-4
dc.identifier.issn
0031-9007
dc.identifier.uri
http://hdl.handle.net/11336/75107
dc.description.abstract
The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Strange
dc.subject
Asymmetry
dc.subject
Perturbative
dc.subject.classification
Astronomía
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Perturbative generation of a strange-quark asymmetry in the nucleon
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-23T15:09:03Z
dc.journal.volume
93
dc.journal.number
15
dc.journal.pagination
1-4
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Catani, Stefano. Università degli Studi di Firenze; Italia
dc.description.fil
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
dc.description.fil
Fil: Rodrigo, Germán. Csic-uv - Instituto de F& Alemania
dc.description.fil
Fil: Vogelsang, Werner. Riken Bnl Research Center; Alemania
dc.journal.title
Physical Review Letters
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevLett.93.152003
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