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Type: Journal article
Title: Charmed baryon spectrum from lattice QCD near the physical point
Author: Bahtiyar, H.
Can, K.U.
Erkol, G.
Gubler, P.
Oka, M.
Takahashi, T.T.
Citation: Physical Review D, 2020; 102(5):054513-1-054513-18
Publisher: American Physical Society
Issue Date: 2020
ISSN: 2470-0010
Statement of
H. Bahtiyar, K. U. Can, G. Erkol, P. Gubler, M. Oka, and T. T. Takahashi (TRJQCD Collaboration).
Abstract: We calculate the low-lying spectrum of charmed baryons in lattice QCD on the 323×64, Nf=2+1 PACS-CS gauge configurations at the almost physical pion mass of ∼156  MeV/c2. By employing a set of interpolating operators with different Dirac structures and quark-field smearings for the variational analysis, we extract the ground and first few excited states of the spin-1/2 and spin-3/2, singly, doubly, and triply charmed baryons. Additionally, we study the Ξc−Ξ′c mixing and the operator dependence of the excited states in a variational approach. We identify several states that lie close to the experimentally observed excited states of the Σc, Ξc and Ωc baryons, including some of the Ξc states recently reported by LHCb. Our results for the doubly and triply charmed baryons are suggestive for future experiments.
Rights: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
RMID: 1000026863
DOI: 10.1103/PhysRevD.102.054513
Grant ID:
Appears in Collections:Physics publications

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