Tensor charge of the nucleon in lattice QCD

1996/08/22 by S. Aoki, Sinya Aoki, M. Doui +3 · 9 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.56.433

published as Phys.Rev. D56 (1997) 433-436 · RevTeX 11 pages, 2 ps figures

arxiv created 1996/08/22 · openalex publication_date 1997/07/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The first results of lattice QCD simulations on the nucleon tensor charge \ensuremathδq are presented. From the quenched QCD simulations with the Wilson quark action at \ensuremathβ=5.7 (the lattice spacing a\ensuremath≃0.14 fm) on a 16³\ifmmode×\else\texttimes\fi20 lattice and on a 12³\ifmmode×\else\texttimes\fi20 lattice, we find (i) the connected part \ensuremathδq_con is determined with small statistical error, (ii) the disconnected part \ensuremathδq_dis, which violates the OZI rule, is consistent with zero, and (iii) the flavor-singlet tensor charge \ensuremathδ\ensuremathΣ(\ensuremathμ²=2 GeV²)=\ensuremathδu+\ensuremathδd+\ensuremathδs takes 0.562(88) in the quenched simulation at \ensuremathβ=5.7 on a 16³\ifmmode×\else\texttimes\fi20 lattice.

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