ΛcΣcπ coupling and Σc→Λcπ decay in lattice QCD

K.U. Can; G. Erkol; M. Oka; T.T. Takahashi

doi:10.1016/j.physletb.2017.03.006

Physics Letters B (May 2017)

ΛcΣcπ coupling and Σc→Λcπ decay in lattice QCD

K.U. Can,
G. Erkol,
M. Oka,
T.T. Takahashi

Affiliations

K.U. Can: Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
G. Erkol: Department of Natural and Mathematical Sciences, Faculty of Engineering, Ozyegin University, Nisantepe Mah. Orman Sok. No: 34-36, Alemdag, 34794 Cekmekoy, Istanbul, Turkey
M. Oka: Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
T.T. Takahashi: Gunma National College of Technology, Maebashi, Gunma 371-8530, Japan

DOI: https://doi.org/10.1016/j.physletb.2017.03.006
Journal volume & issue: Vol. 768, no. C
pp. 309 – 316

Abstract

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We evaluate the ΛcΣcπ coupling constant (GΛcΣcπ) and the width of the strong decay Σc→Λcπ in 2+1 flavor lattice QCD on four different ensembles with pion masses ranging from 700 MeV to 300 MeV. We find GΛcΣcπ=18.332(1.476)stat.(2.171)syst. and the decay width Γ(Σc→Λcπ)=1.65(28)stat.(30)syst. MeV on the physical quark-mass point, which is in agreement with the recent experimental determination.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

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