Tau polarimetry in B meson decays

This article summarizes recent developments in $B\to D^{(\ast)}\tau\nu$ decays. We explain how to extract the tau lepton's production properties from the kinematics of its decay products. The focus is on hadronic tau decays, which are most sensitive to the tau polarizations. We present new resu...

Full description

Bibliographic Details
Main Author: Rodrigo Alonso, Jorge Martin Camalich, Susanne Westhoff
Format: Article
Language:English
Published: SciPost 2019-02-01
Series:SciPost Physics Proceedings
Online Access:https://scipost.org/SciPostPhysProc.1.012
Description
Summary:This article summarizes recent developments in $B\to D^{(\ast)}\tau\nu$ decays. We explain how to extract the tau lepton's production properties from the kinematics of its decay products. The focus is on hadronic tau decays, which are most sensitive to the tau polarizations. We present new results for effects of new physics in tau polarization observables and quantify the observation prospects at BELLE II.
ISSN:2666-4003