The electric dipole form factor of the nucleon

W. H. Hockings; U. van Kolck

doi:10.1016/j.physletb.2004.11.043

The electric dipole form factor of the nucleon

核理论 2009-11-11 v1 高能物理 - 唯象学

作者: W. H. Hockings , U. van Kolck

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摘要

The electric dipole form factor of the nucleon stemming from the QCD $\bar{\theta}$ term is calculated in chiral perturbation theory in leading order. To this order, the form factor originates from the pion cloud. Its momentum-dependence is proportional to a non-derivative time-reversal-violating pion-nucleon coupling, and the scale for momentum variation--appearing, in particular, in the radius of the form factor--is the pion mass.

引用

@article{arxiv.nucl-th/0508012,
  title  = {The electric dipole form factor of the nucleon},
  author = {W. H. Hockings and U. van Kolck},
  journal= {arXiv preprint arXiv:nucl-th/0508012},
  year   = {2009}
}

备注

8 pages, 2 figures

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