# A simplified recursive ${}^3P_0$ model for the fragmentation of polarized quarks

## TL;DR

This paper presents a simplified recursive ${}^3P_0$ model for polarized quark fragmentation, improving implementation efficiency and interface compatibility without altering core results, and discusses theoretical and simulation aspects.

## Contribution

A simplified version of the recursive ${}^3P_0$ model that enhances Monte Carlo implementation and external generator interfacing without changing fundamental predictions.

## Key findings

- Suppression of spin-independent correlations between quarks.
- Enhanced suitability for external event generator interfaces.
- Consistent results with the previous model version.

## Abstract

We revisit our recursive model for the fragmentation of polarized quarks based on the string+${}^3P_0$ mechanism of $q\bar{q}$ pair creation. We make a different choice for one input function of the model that simplifies the implementation in a Monte Carlo program. No new parameters are introduced, and the relevant results are the same apart from the suppression of the spin-independent correlations between successive quarks. In addition, the present version is more suitable for an interface with external event generators. The theoretical aspects and the simulation results obtained with a stand alone program are discussed in detail and compared with those of the previous version of the model.