ΛcΣcπ coupling and Σc→Λcπ decay in lattice QCD

Physics Letters B

G. Erkol¹  K.U. Can²  M. Oka²  T.T. Takahashi³ 

[1] Department of Natural and Mathematical Sciences, Faculty of Engineering, Ozyegin University, Nisantepe Mah. Orman Sok. No: 34-36, Alemdag, 34794 Cekmekoy, Istanbul, Turkey;Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan;Gunma National College of Technology, Maebashi, Gunma 371-8530, Japan;

关键词: Charmed baryons;    Pion couplings;    Lattice QCD;   

DOI  :  10.1016/j.physletb.2017.03.006

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown