Linear flavour violation and anomalies in B physics

• Main Authors: Gripaios, Ben, Nardecchia, M, Renner, S. A
• Format: Journal Article
• Language: English
• Published: 11-06-2016
• Subjects: Physics - High Energy Physics - Phenomenology
• DOI: 10.48550/arxiv.1509.05020

We propose renormalizable models of new physics that can explain various
anomalies observed in decays of B-mesons to electron and muon pairs. The new
physics states couple to linear combinations of Standard Model fermions,
yielding a pattern of flavour violation that gives a consistent fit to the
gamut of flavour data. Accidental symmetries prevent contributions to baryon-
and lepton-number-violating processes, as well as enforcing a loop suppression
of new physics contributions to flavour violating processes. Data require that
the new flavour-breaking couplings are largely aligned with the Yukawa
couplings of the SM and so we also explore patterns of flavour symmetry
breaking giving rise to this structure.