Quark-Anti-Quark Potentials from Nambu-Bethe-Salpeter Amplitudes on Lattice(Particles and Fields)
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概要
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Quark-anti-quark (q^^--q) potentials with finite quark masses are studied from the q^^--q Nambu-Bethe-Salpeter (NBS) wave functions in quenched lattice QCD. With the use of a method which has been recently developed in the derivation of nuclear forces from lattice QCD, we derive the q^^--q potentials from the NBS wave functions. We calculate the q^^--q NBS wave functions in pseudo-scalar and vector channels for several quark masses. The derived potentials at each quark mass in both channels show linear plus Coulomb form. We also discuss the quark-mass and channel dependence of the q^^--q potentials.
- 2012-11-25
著者
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Ikeda Yoichi
Department Of Chemistry Graduate School Of Pure And Applied Sciences University Of Tsukuba
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IIDA Hideaki
Department of Physics, Kyoto University
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IKEDA Yoichi
Department of Physics, Tokyo Institute of Technology:RIKEN Nishina Center
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