Unbinned Angular Analysis of $B\to D^*\ell \nu_\ell$ and the Right-handed Current

TL;DR

This paper investigates how unbinned angular analysis of B meson decays can effectively constrain right-handed current contributions, providing insights independent of the unresolved V_{cb} puzzle.

Contribution

It introduces a sensitivity study demonstrating the power of angular observables to constrain right-handed currents in B decays.

Findings

Angular observables strongly constrain right-handed currents.

Analysis is independent of the V_{cb} puzzle.

Method enhances understanding of new physics in B decays.

Abstract

In this article, we perform a sensitivity study of an unbinned angular analysis of the $B\to D^*\ell \nu_\ell$ decay, including the contributions from the right-handed current. We show that the angular observable can constrain very strongly the right-handed current without the intervention of the yet unsolved $V_{cb}$ puzzle.