On the angular distributions of tau- --> K_S pi-nu_tau decay

TL;DR

This paper analyzes the angular distributions in tau- decay to K_S pi- nu_tau using experimental data, exploring potential new physics effects and the decay's scalar components to guide future experiments.

Contribution

It provides a phenomenological analysis of angular distributions in tau decay and examines potential new physics contributions from the two-Higgs-doublet model.

Findings

Angular distributions reveal interesting observables for tau decay.

Future experiments could uncover scalar components of the decay.

Two-Higgs-doublet model contributions are significant in the analysis.

Abstract

Based on experimental data by the Bell Collaboration, we present a phenomenological analysis of the angular distributions in tau- -->K_S pi-nu_tau decay. Our study shows that the angular analysis could lead to some interesting observables, and the future experimental investigation of these observables might be very helpful in revealing the nature of the scalar components of the decay. New physics contributions from the two-Higgs-doublet model to this decay have also been examined.