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Interpreting B-anomalies within an extended 331 gauge theory

Authors :
Addazi, Andrea
Ricciardi, Giulia
Scarlatella, Simone
Srivastava, Rahul
Valle, José W. F.
Source :
Physical Review D 106, 035030 (2022)
Publication Year :
2022

Abstract

In light of the recent $R_{K^{(*)}}$ data on neutral current flavour anomalies in $B \to K^{(*)} \ell^+ \ell^-$ decays, we re-examine their quantitative interpretation in terms of an extended 331 gauge theory framework. We achieve this by adding two extra lepton species with novel 331 charges, while ensuring that the model remains anomaly free. In contrast to the canonical 331 models, the gauge charges of the first and second lepton families differ from each other, allowing lepton flavour universality violation. We further expand the model by adding the neutral fermions required to provide an adequate description for small neutrino masses.<br />Comment: 26 pages, 5 tables, 3 figures. Title modified, typos corrected, conclusions unchanged. Matches published Phys. Rev. D version

Details

Database :
arXiv
Journal :
Physical Review D 106, 035030 (2022)
Publication Type :
Report
Accession number :
edsarx.2201.12595
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevD.106.035030