English

Tensor properties of the nucleon

High Energy Physics - Phenomenology 2015-05-27 v1 High Energy Physics - Experiment Nuclear Theory

Abstract

We report in the present talk recent results of the tensor properties of the nucleon within the framework of the chiral quark-soliton model. The tensor and anomalous tensor magnetic form factors are calculated for the momentum transfer up to Q21GeV2Q^{2}\leq1\,\mathrm{GeV}^{2} and at a renormalization scale of 0.36GeV20.36\,\mathrm{GeV}^{2}. The main results are summarized as follows: the flavor tensor charges of the nucleon are yielded as δu=1.08\delta u=1.08, δd=0.31\delta d=-0.31, δs=0.01\delta s=-0.01, while the up and down anomalous tensor magnetic moments are evaluated as κTu=3.56\kappa_{T}^{u}=3.56 and κTd=1.83\kappa_{T}^{d}=1.83, respectively. The strange anomalous tensor magnetic moment turns out to be κTs=0.20.2\kappa_{T}^{s}=0.2\sim -0.2, compatible with zero. We discuss their physical implications, comparing them in particular with those from the lattice QCD.

Keywords

Cite

@article{arxiv.1103.2255,
  title  = {Tensor properties of the nucleon},
  author = {Tim Ledwig and Antonio Silva and Hyun-Chul Kim},
  journal= {arXiv preprint arXiv:1103.2255},
  year   = {2015}
}

Comments

4 pages. 4 figures. A talk given at International Conference on the structure of baryons, BARYONS 2010, Dec. 7-11, 2010, Osaka, Japan

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