期刊
PHYSICAL REVIEW D
卷 86, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.074514
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology [18104005, 18540250, 22244018]
- Japanese Ministry for Scientific Research on Innovative Areas [20105002, 21105501, 23105708]
- Grants-in-Aid for Scientific Research [22244018, 18540250, 21105501, 20105002] Funding Source: KAKEN
We calculate the binding energies for multinucleon bound states with the nuclear mass number less than or equal to 4 in 2 + 1 flavor QCD at the lattice spacing of a = 0.09 fm employing a relatively heavy quark mass corresponding to m(pi) = 0.51 GeV. To distinguish a bound state from attractive scattering states, we investigate the volume dependence of the energy shift between the ground state and the state of free nucleons by changing the spatial extent of the lattice from 2.9 to 5.8 fm. We conclude that He-4, He-3, deuteron and dineutron are bound at m(pi) = 0.51 GeV. We compare their binding energies with those in our quenched studies and also with several previous investigations.
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