English

Chiral Odd Structure Functions from a Chiral Soliton

High Energy Physics - Phenomenology 2016-09-06 v4

Abstract

We calculate the chiral odd quark distributions and the corresponding structure functions hT(x,Q2)h_T(x,Q^2) and hL(x,Q2)h_L(x,Q^2) within the Nambu-Jona-Lasinio chiral soliton model for the nucleon. The Q2Q^2 evolution of the twist-2 contributions is performed according to the standard GLAP formalism while the twist-three piece, hˉL(x)\bar{h}_L(x), is evolved according to the large NCN_C scheme. We carry out a comparison between the chiral odd structure functions of the proton and the neutron. At the low model scale (Q02Q_0^2) we find that the leading twist effective quark distributions,f1(q)(x,Q02)f_1^{(q)}(x,Q_0^2), g1(q)(x,Q02)g_1^{(q)}(x,Q_0^2) and hT(q)(x,Q02)h_T^{(q)}(x,Q_0^2) satisfy Soffer's inequality for both quark flavors q=u,dq=u,d.

Keywords

Cite

@article{arxiv.hep-ph/9801379,
  title  = {Chiral Odd Structure Functions from a Chiral Soliton},
  author = {L. Gamberg and H. Reinhardt and H. Weigel},
  journal= {arXiv preprint arXiv:hep-ph/9801379},
  year   = {2016}
}

Comments

36 pages, 10 postscript figures, discussion on numerical results extended, to be published in Phys. Rev. D

R2 v1 2026-07-22T14:41:58.033Z