Are the B decay anomalies related to neutrino oscillations?

Abstract

Neutrino oscillations are solidly established, with a hint of CP violation just emerging. Similarly, there are hints of lepton universality violation in $b\to s$ transitions at the level of $2.6\sigma$. By assuming that the unitary transformation between weak and mass charged leptons equals the leptonic mixing matrix measured in neutrino oscillation experiments, we predict several lepton flavor violating (LFV) B meson decays. We are led to the tantalizing possibility that some LFV branching ratios for B decays correlate with the leptonic CP phase $\delta$ characterizing neutrino oscillations. Moreover, we also consider implications for ${\ell }_i\to {\ell }_j{\ell }_k{\ell }_k$ decays.

Comments: 5 pages, 2 figures; v2: 1 ref. added; v3: matches version published in PLB