Energy dependence of nucleon-nucleon potentials

Details Energy dependence of nucleon-nucleon potentials Energy dependence of nucleon-nucleon potentials

2008-12-03

arxiv.org/abs/0812.0673v1

PoS LATTICE2008:152,2008

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 5 figures, talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19, 2008, Williamsburg

Scientific paper

We investigate the energy dependence of potentials defined through the Bethe-Salpeter wave functions. We analytically evaluate such a potential in the Ising field theory in 2 dimensions and show that its energy dependence is weak at low energy. We then numerically calculate the nucleon-nucleon potential at non-zero energy using quenched QCD with anti-periodic boundary condition. In this case we also observe that the potentials are almost identical at $E\simeq 0$ and $E\simeq 50$ MeV, where $E$ is the center of mass kinetic energy.

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