Matching at one loop for the four-quark operators in NRQCD

dc.contributor.authorPineda, Antonio (Pineda Ruiz)cat
dc.contributor.authorSoto Riera, Joancat
dc.date.accessioned2010-05-06T11:12:37Z
dc.date.available2010-05-06T11:12:37Z
dc.date.issued1998cat
dc.description.abstractThe matching coefficients for the four-quark operators in NRQCD (NRQED) are calculated at one loop using dimensional regularization for ultraviolet and infrared divergences. The matching for the electromagnetic current follows easily from our results. Both the unequal and equal mass cases are considered. The role played by the Coulomb infrared singularities is explained in detail.eng
dc.format.extent9 p.cat
dc.format.mimetypeapplication/pdfeng
dc.identifier.idgrec170145cat
dc.identifier.issn0556-2821cat
dc.identifier.urihttps://hdl.handle.net/2445/12437
dc.language.isoengeng
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.58.114011cat
dc.relation.ispartofPhysical Review D, 1998, vol. 58, núm. 11, p. 114011-1-114011-9cat
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.58.114011
dc.rights(c) The American Physical Society, 1998eng
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationPertorbació (Matemàtica)cat
dc.subject.classificationPartícules (Física nuclear)cat
dc.subject.otherPerturbation (Mathematics)eng
dc.subject.otherParticles (Nuclear physics)eng
dc.titleMatching at one loop for the four-quark operators in NRQCDeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion

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