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New Physics; right-handed currents

The rare decay $B \to K^{\ast}\ell^{+}\ell^{−}$ is a very significant mode to search for physics beyond the Standard Model (SM). The mode provides a very rich spectrum of observables obtained from the angular distribution ofits decay products. The recent LHCb measured values of these observables are used to conclude an evidence of right-handed currents at the kinematic endpoint of this decay mode. As the conclusion is drawn at the maximum dilepton invariant mass square $(q^2)$ kinematic endpoint, it relies only on heavy quark symmetries where it is valid without significant corrections.

RUSA MANDAL¹ ANIRBAN KARAN¹ ABINASH KUMAR NAYAK¹ RAHUL SINHA¹ TOM BROWDER²

1. The Institute of Mathematical Sciences, HBNI, Taramani, Chennai 600 113, India
2. Department of Physics and Astronomy, University of Hawaii, Honolulu, HI 96822, USA

Published

20 October 2017

Manuscript received

Manuscript revised

Accepted

Early published

Unedited version published online

Final version published online

9 October 2017