The Dihadron fragmentation functions way to Transversity

TL;DR

This paper presents the first collinear factorization-based extraction of the transversity distribution using dihadron fragmentation functions derived from electron-positron annihilation data, based on pion-pair production in polarized deep inelastic scattering.

Contribution

It introduces a novel method to determine transversity distributions through dihadron fragmentation functions within collinear factorization framework.

Findings

First extraction of transversity using dihadron fragmentation functions

Utilizes electron-positron annihilation data for fragmentation functions

Provides new insights into transversity distribution in nucleons

Abstract

Observations of the transversity parton distribution based on an analysis of pion-pair production in deep inelastic scattering off transversely polarized targets are presented. This extraction relies on the knowledge of dihadron fragmentation functions, which are obtained from electron-positron annihilation measurements. This is the first attempt to determine the transversity distribution in the framework of collinear factorization.