Estimates of T-odd distribution and fragmentation functions

TL;DR

This paper estimates T-odd distribution and fragmentation functions using experimental data from polarized proton-proton scattering and predicts azimuthal asymmetries in polarized electron-proton interactions.

Contribution

It provides the first estimates of $H_1^ot$ and $f_{1T}^{ot}$ based on experimental data and makes predictions for related azimuthal asymmetries.

Findings

Estimated $H_1^ot$ and $f_{1T}^{ot}$ functions from data

Predicted azimuthal asymmetries in electron-proton scattering

Demonstrated the relevance of T-odd functions in spin asymmetry phenomena

Abstract

Estimates of the T-odd fragmentation and distribution functions, $H_1^\perp$ and $f_{1T}^{\perp}$, are presented. Our evaluations are based on a fit on experimental data of polarized proton-proton scattering. We use our estimates to make predictions for electron polarized-proton azimuthal asymmetries.