Quark mass dependence of Spin-Orbit force in parity-odd NN system from 2+1 flavor QCD

QCD Collaboration

Quark mass dependence of Spin-Orbit force in parity-odd NN system from 2+1 flavor QCD

High Energy Physics - Lattice 2013-12-05 v1 Nuclear Theory

Authors: QCD Collaboration

Abstract

We report our recent study of spin-orbit force between two nucleons in the parity-odd sector from lattice QCD. To examine the quark mass dependence of spin-orbit force, we construct it from Nambu-Bethe-Salpeter wave functions in $^3P_0$ , $^3P_1$ and $^3P_2-^3F_2$ channels calculated from lattice QCD in the quark mass region $m_\pi$ =702-411 MeV. The calculation is performed on Blue Gene/Q at KEK by using $N_f=2+1$ PACS-CS gauge configuration generated by O(a) improved Wilson quark action with RG improved (Iwasaki) gauge action. We find that the potentials tend to become stronger as the quark mass decreases.

Keywords

spin-orbit force lattice QCD quark mass dependence nucleon-nucleon interaction Nambu-Bethe-Salpeter wave function parity-odd sector

Cite

@article{arxiv.1312.1095,
  title  = {Quark mass dependence of Spin-Orbit force in parity-odd NN system from 2+1 flavor QCD},
  author = {QCD Collaboration},
  journal= {arXiv preprint arXiv:1312.1095},
  year   = {2013}
}

Comments

7page, talk presented at the 31st International Symposium on Lattice Field Theory (Lattice 2013), July 29-August 3 2013, Mainz, Germany

Quark mass dependence of Spin-Orbit force in parity-odd NN system from 2+1 flavor QCD

Abstract

Keywords

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