NAGIOS: RODERIC FUNCIONANDO

Nucleon and delta masses in QCD

Repositori DSpace/Manakin

dc.contributor.author	Rafecas López, María Magdalena
dc.contributor.author	Vento Torres, Vicente
dc.date.accessioned	2014-08-29T11:49:53Z
dc.date.available	2014-08-29T11:49:53Z
dc.date.issued	1992
dc.identifier.citation	Rafecas López, María Magdalena 1992 Nucleon and delta masses in QCD. Physics Letters B 297 186 190
dc.identifier.uri	http://hdl.handle.net/10550/37470
dc.description.abstract	Using the positivity of the path integral measure of QCD and defining a structure for the quark propagator in a background field according to the fluxon scenario for confinement, we calculate and compare the correlators for nucleon and delta. From their shape we elucidate about the origin of their mass difference, which in our simplified scenario is due to the tensor structure in the propagator. This term arises due to a dynamical mechanism which is responsible simultaneously for confinement and spontaneous chiral symmetry breaking. Finally we discuss, by comparing the calculated correlators with the Lehmann representation, the possibility that a strong CP and/or P violation occurs as a consequence of a specific mechanism for confinement.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 1992, vol. 297, p. 186-190
dc.subject	Cromodinàmica quàntica
dc.subject	Violació CP (Física nuclear)
dc.title	Nucleon and delta masses in QCD
dc.type	journal article	es_ES
dc.date.updated	2014-08-29T11:49:53Z
dc.identifier.doi	10.1016/0370-2693(92)91090-V
dc.identifier.idgrec	037281
dc.rights.accessRights	open access	es_ES