Universal Interface of TAUOLA Technical and Physics Documentation

TL;DR

This paper introduces a Monte Carlo interface that integrates tau decays into event simulations, allowing for accurate inclusion of spin effects, weak corrections, and new physics at the decay stage in high energy collision experiments.

Contribution

It presents a universal interface for tau decay simulation that can be added to existing event generators, enhancing their capability to incorporate detailed tau decay physics.

Findings

Enables inclusion of spin effects in tau decays

Allows for genuine weak corrections and new physics effects

Integrates seamlessly with other event generation programs

Abstract

Because of their narrow width, tau decays can be well separated from their production process. Only spin degrees of freedom connect these two parts of the physics process of interest for high energy collision experiments. In the following, we present a Monte Carlo algorithm which is based on that property. The interface supplements events generated by other programs, with tau decays. Effects of spin, genuine weak corrections or of new physics may be taken into account at the time when a tau decay is generated and written into an event record.