4.7 Article

Interpreting B anomalies within an extended 331 gauge theory

Journal

PHYSICAL REVIEW D
Volume 106, Issue 3, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.106.035030

Keywords

-

Funding

  1. Talent Scientific Research Program of College of Physics, Sichuan University [1082204112427]
  2. Fostering Program in Disciplines Possessing Novel Features for Natural Science of Sichuan University [2020SCUNL209]
  3. 1000 Talent program of Sichuan Province 2021
  4. Generalitat Valenciana [Prometeo CIPROM/2021/054]
  5. Government of India
  6. SERB [SRG/2020/002303]
  7. MIUR [2015P5SBHT]
  8. INFN research initiative ENP
  9. [PID2020-113775 GB-I00]
  10. [AEI/10.13039/501100011033]

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Based on the recent data on neutral current flavor anomalies in B -> K-(*())l(+)l(-) decays, we reexamine their interpretation within the framework of an extended 331 gauge theory. By introducing two additional lepton species with novel 331 charges, while ensuring anomaly-free conditions, we obtain new results. Furthermore, we extend the model by including neutral fermions to account for small neutrino masses.
In light of the recent R-K(*) data on neutral current flavor anomalies in B -> K-(*())l(+)l(-) decays, we reexamine 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-flavor universality violation. We further expand the model by adding the neutral fermions required to provide an adequate description for small neutrino masses.

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