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- W2583945072 abstract "We address the issue of bound state in the two-nucleon system in lattice QCD with the quenched approximation at the lattice spacing of a =0.128 fm using a heavy quark mass corresponding to m_pi = 0.8 GeV. To distinguish a bound state from an attractive scattering state, we investigate the volume dependence of the energy difference between the ground state and the free two-nucleon state by changing the spatial extent of the lattice from 3.1 fm to 12.3 fm. A finite energy difference left in the infinite spatial volume limit leads us to the conclusion that the measured ground states for not only spin triplet but also singlet channels are bounded. Furthermore the existence of the bound state is confirmed by investigating the properties of the energy for the first excited state obtained by 2x2 diagonalization method. The scattering lengths for both channels are evaluated by the finite volume formula derived by Luscher." @default.
- W2583945072 created "2017-02-10" @default.
- W2583945072 creator A5067717148 @default.
- W2583945072 date "2011-11-24" @default.
- W2583945072 modified "2023-09-25" @default.
- W2583945072 title "Bound state of two-nucleon systems in quenched lattice QCD" @default.
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- W2583945072 hasPublicationYear "2011" @default.
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