Consequences of R-parity violating interactions for anomalies in B¯ → D (? ) τν¯ and b→ sμ + μ -
Journal
European Physical Journal C
Journal Volume
384
Journal Issue
1
Date Issued
2012
Author(s)
N. G. Deshpande
Abstract
We investigate the possibility of explaining the enhancement in semileptonic decays of B¯ → D(∗ )τν¯ , the anomalies induced by b→ sμ+μ- in B¯ → (K, K∗, ϕ) μ+μ- and violation of lepton universality in RK= Br (B¯ → Kμ+μ-) / Br (B¯ → Ke+e-) within the framework of R-parity violating MSSM. The exchange of down type right-handed squark coupled to quarks and leptons yields interactions which are similar to leptoquark induced interactions that have been proposed to explain the B¯ → D(∗ )τν¯ by tree level interactions and b→ sμ+μ- anomalies by loop induced interactions, simultaneously. However, the Yukawa couplings in such theories have severe constraints from other rare processes in B and D decays. Although this interaction can provide a viable solution to the R(D(∗ )) anomaly, we show that with the severe constraint from B¯ → Kνν¯ , it is impossible to solve the anomalies in the b→ sμ+μ- process simultaneously.
Type
journal article