English

Testing Minimal Flavor Violation in Leptoquark Models of the $R_{K^{(*)}}$ Anomaly

High Energy Physics - Phenomenology 2017-12-06 v3

Abstract

The RK()R_{K^{(*)}} anomaly can be explained by tree level exchange of leptoquarks. We study the consequences of subjecting these models to the principle of minimal flavor violation (MFV). We consider MFV in the linear regime, and take the charged lepton Yukawa matrix to be the only spurion that violates lepton flavor universality. We find that a combination of constraints from a variety of processes -- bsμμb\to s\mu\mu, bsττb\to s\tau\tau, bsννb\to s\nu\nu, bbˉττb\bar b\to\tau\tau and bcτνb\to c\tau\nu -- excludes MFV in these models.

Keywords

Cite

@article{arxiv.1708.06161,
  title  = {Testing Minimal Flavor Violation in Leptoquark Models of the $R_{K^{(*)}}$ Anomaly},
  author = {Daniel Aloni and Avital Dery and Claudia Frugiuele and Yosef Nir},
  journal= {arXiv preprint arXiv:1708.06161},
  year   = {2017}
}

Comments

Version published in JHEP, 15 pages, 1 figure