The 331 models constitute an extension of the Standard Model (SM) obtained by enlarging the SM gauge group SU(3)C×SU(2)L×U(1)Y to the group SU(3)C×SU(3)L×U(1)X. We investigate how a nonminimal 331 model may embed lepton flavor universality violating contributions to b→s processes without introducing lepton flavor violation, as suggested by the recent LHCb measurements of the ratios RK and RK∗. We discuss the model-independent scenarios of new physics in b→s currently favored by the data that could be accommodated by this model and consider a few phenomenological constraints on this model. © 2018 authors. Published by the American Physical Society.
Nonminimal 331 model for lepton flavor universality violation in b →s decays / Descotes-Genon, S.; Moscati, M.; Ricciardi, G.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 98:11(2018). [10.1103/PhysRevD.98.115030]
Nonminimal 331 model for lepton flavor universality violation in b →s decays
Ricciardi, G.
2018
Abstract
The 331 models constitute an extension of the Standard Model (SM) obtained by enlarging the SM gauge group SU(3)C×SU(2)L×U(1)Y to the group SU(3)C×SU(3)L×U(1)X. We investigate how a nonminimal 331 model may embed lepton flavor universality violating contributions to b→s processes without introducing lepton flavor violation, as suggested by the recent LHCb measurements of the ratios RK and RK∗. We discuss the model-independent scenarios of new physics in b→s currently favored by the data that could be accommodated by this model and consider a few phenomenological constraints on this model. © 2018 authors. Published by the American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
