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dc.contributor.author
Rodrigo, Germán
dc.contributor.author
Catani, Stefano
dc.contributor.author
de Florian, Daniel Enrique
dc.contributor.author
Vogelsang, Werner
dc.date.available
2019-05-06T14:19:28Z
dc.date.issued
2004-10
dc.identifier.citation
Rodrigo, Germán; Catani, Stefano; de Florian, Daniel Enrique; Vogelsang, Werner; Collinear splitting, parton evolution and the strange-quark asymmetry of the nucleon in NNLO QCD; North-holland; Nuclear Physics B - Proceedings Supplements; 135; 1-3 SPEC.ISS.; 10-2004; 188-192
dc.identifier.issn
0920-5632
dc.identifier.uri
http://hdl.handle.net/11336/75587
dc.description.abstract
We consider the collinear limit of QCD amplitudes at one-loop order, and their factorization properties directly in colour space. These results apply to the multiple collinear limit of an arbitrary number of QCD partons, and are a basic ingredient in many higher-order computations. In particular, we discuss the triple collinear limit and its relation to flavour asymmetries in the QCD evolution of parton densities at three loops. As a phenomenological consequence of this new effect, and of the fact that the nucleon has non-vanishing quark valence densities, we study the perturbative generation of a strange-antistrange asymmetry s(x) - s̄(x) in the nucleon's sea. © 2004 Elsevier B.V. All rights reserved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
North-holland
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
Splitting
dc.subject
Collinear
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Collinear splitting, parton evolution and the strange-quark asymmetry of the nucleon in NNLO QCD
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-04-23T15:09:18Z
dc.journal.volume
135
dc.journal.number
1-3 SPEC.ISS.
dc.journal.pagination
188-192
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodrigo, Germán. Csic-uv - Instituto de F& Alemania
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: Vogelsang, Werner. Riken Bnl Research Center; Alemania
dc.journal.title
Nuclear Physics B - Proceedings Supplements
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.nuclphysbps.2004.09.048
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