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A new method to extract the valence transversity distributions

by Mauro Anselmino, Raj Kishore, Asmita Mukherjee

Submission summary

As Contributors: Raj Kishore
Arxiv Link: https://arxiv.org/abs/2107.11278v1 (pdf)
Date submitted: 2021-07-26 18:01
Submitted by: Kishore, Raj
Submitted to: SciPost Physics Proceedings
Proceedings issue: DIS2021
Academic field: Physics
Specialties:
  • High-Energy Physics - Theory
  • High-Energy Physics - Phenomenology
Approaches: Theoretical, Phenomenological

Abstract

A new method is suggested for the extraction of $u$-quark and $d$-quark transversity distributions, using single spin asymmetry (SSA) data in semi-inclusive deep inelastic scattering (SIDIS) processes, where they couple to the Collins or the di-hadron fragmentation functions. We discuss a recent suggestion to extract the transversity distribution using the concept of difference asymmetries and their ratios, which avoids the requirement of Collins function. We suggest new measurements, involving ratios of polarized cross-sections, that would directly probe the ratio $h_1^{d_v}/h_1^{u_v}$. We also show some numerical estimates.

Current status:
Editor-in-charge assigned


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Submission 2107.11278v1 on 26 July 2021

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