Alladi Ramakrishnan Hall

IMSc

Rahul Sinha

Signal of right-handed currents in B meson decays

The decay mode $B\to K^*\ell^+\ell^-$ is one of the most promising
modes to probe physics beyond the standard model (SM), since the angular
distribution of the decay products enable measurement of several
constraining observables. LHCb has recently measured these observables using
$3\,fb^{-1}$ of data. We show that LHCb data implies a $5\sigma$ overall
signal for new physics and provides unambiguous evidence for right-handed
currents, which are absent in the SM.