Tensor-polarized structure function b₁ by convolution picture for deuteron

2017/02/24 by Wim Cosyn, Yubing Dong, Cosyn, W. +5
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications

paper · pdf · doi:10.48550/arxiv.1702.07594

openalex publication_date 2017/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

There are polarized structure functions b_1-4 for the spin-1 deuteron. We calculated the leading-twist tensor structure function b₁ by using convolution description for the deuteron. We found large differences between our theoretical functions and HERMES experimental data on b₁. Although higher-twist effects should be considered in obtaining experimental b₁, it suggests a possible existence of new hadron physics mechanism for spin-1 hadrons. Furthermore, we found that there are significant distributions at large Bjorken x. In future, an experimental measurement is planned at JLab for b₁ and there is a possibility of a proton-deuteron Drell-Yan experiment at Fermilab with the tensor-polarized deuteron, so that further theoretical studies are needed for clarifying the physics origin of tensor structure in terms of quark and gluon degrees of freedom.

Related

• Standard convolution description of deuteron tensor spin structure
• Experimental Study of Tensor Structure Function of Deuteron
• Tensor-polarized twist-3 parton distribution functions f_LT(x) for the spin-1 deuteron by using twist-2 relations
• Spin asymmetry for proton-deuteron Drell-Yan process with tensor-polarized deuteron
• Theoretical predictions on polarization asymmetry for Drell-Yan process with spin-one deuteron and tensor-polarized structure function b₁