Transverse–Spin Quark Distributions from Asymmetry Data and Symmetry Arguments

Symmetry

Vincenzo Barone¹  Anna Martin²  Franco Bradamante² 

[1] Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, 15121 Alessandria, Italy;INFN, Sezione di Trieste, 34127 Trieste, Italy;

关键词: transverse spin;    quark distribution functions;    structure of the nucleon;    semi-inclusive deep inelastic scattering;   

DOI  :  10.3390/sym13010116

来源: DOAJ

【 摘 要 】

The transversity and the Sivers distribution functions of quarks incorporate important information about the transverse-spin and transverse-momentum structure of nucleons. We show how these distributions can be directly determined point by point from leptoproduction asymmetry data collected for various targets and produced hadrons by the COMPASS Collaboration. Only simple symmetry relations are used in the extraction.

【 授权许可】

Unknown