Double hadron lepto-production in the current and target fragmentation regions

TL;DR

This paper investigates the simultaneous production of two hadrons in deep inelastic scattering, analyzing how fracture functions and fragmentation functions interact, especially for transversely polarized quarks, to deepen understanding of hadronization.

Contribution

It introduces a factorized framework coupling fracture functions with fragmentation functions, enabling detailed study of transversely polarized quark effects in hadron production.

Findings

Coupling of fracture and fragmentation functions for polarized quarks

Analysis of hadron production in current and target fragmentation regions

Framework for exploring transverse momentum dependent functions

Abstract

We study the inclusive production of two hadrons in deep inelastic processes, l N ---> l h_1 h_2 X, with h_1 in the current fragmentation region (CFR) and h_2 in the target fragmentation region (TFR). Assuming a factorized scheme, the recently introduced polarized and transverse momentum dependent fracture functions couple to the transverse momentum dependent fragmentation functions. This allows the full exploration of the fracture functions for transversely polarized quarks. Some particular cases are considered.