Journal
PHYSICAL REVIEW D
Volume 87, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.87.094512
Keywords
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)-Japan [18104005, 20340047, 20540248, 21340049, 22244018, 24540250]
- SPIRE (Strategic Program for Innovative REsearch)
- [20105001]
- [20105002]
- [20105003]
- [20105005]
- [2004]
- Grants-in-Aid for Scientific Research [18104005, 21340049, 24540250, 20540248, 22244018] Funding Source: KAKEN
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We investigate the charmed-baryon mass spectrum using the relativistic heavy-quark action on 2 + 1 flavor PACS-CS configurations previously generated on a 32(3) x 64 lattice. The dynamical up-down-and strange-quark masses are tuned to their physical values, reweighted from those employed in the configuration generation. At the physical point, the inverse lattice spacing determined from the Omega baryon mass gives a(-1) = 2.194(10) GeV, and thus the spatial extent equals L = 32a = 2.88(1) fm. Our results for the charmed-baryon masses are consistent with experimental values, except for the mass of Xi(cc), which has been measured by only one experimental group so far and has not been confirmed yet by others. In addition, we report values of other doubly and triply charmed baryon masses, which have never been measured experimentally.
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