Discrete R-symmetry anomalies in heterotic orbifold models

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dc.creatorAraki, Takeshi
dc.creatorChoi, Kang-Sin
dc.creatorKobayashi, Tatsuo
dc.creatorKubo, Jisuke
dc.creatorOhki, Hiroshi
dc.date2007-05-22
dc.date2007-07-23
dc.date.accessioned2026-07-07T10:55:45Z
dc.date.available2026-07-07T10:55:45Z
dc.descriptionAnomalies of discrete R-symmetries appearing in heterotic orbifold models are studied. We find that the mixed anomalies for different gauge groups satisfy the universal Green-Schwarz (GS) condition, indicating that these anomalies are canceled by the GS mechanism. An exact relation between the anomaly coefficients of the discrete R-symmetries and one-loop beta-function coefficients is obtained. We also find that the discrete R-symmetries have a good chance to be unbroken down to the supersymmetry breaking scale. Even below this scale a $Z_2$ subgroup is unbroken, which may be an origin of the R-parity of the minimal supersymmetric standard model. Relations between the R-symmetry anomalies and T-duality anomalies are also investigated.
dc.description19 pages, no figure
dc.identifierhttps://arxiv.org/abs/0705.3075
dc.identifierhttp://arxiv.org/abs/0705.3075
dc.identifierPhys.Rev.D76:066006,2007
dc.identifierdoi:10.1103/PhysRevD.76.066006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186180
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleDiscrete R-symmetry anomalies in heterotic orbifold models
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