ΛcΣcπ coupling and Σc → Λcπ decay in lattice QCD
Type :
Article
Publication Status :
Published
Access :
restrictedAccess
Abstract
We evaluate the Lambda(c)Sigma(c)pi coupling constant (G(Lambda c)Sigma(c)pi) and the width of the strong decay Sigma(c) -> Lambda(c)pi in 2 + 1flavor lattice QCD on four different ensembles with pion masses ranging from 700MeV to 300 MeV. We find G(Lambda c)Sigma(c)pi= 18.332(1.476)(stat.)(2.171)(syst.) and the decay width Gamma (Sigma(c) -> Lambda(c)pi) = 1.65(28)(stat.)(30)(syst.) MeVon the physical quark-mass point, which is in agreement with the recent experimental determination.
Source :
Physics Letters B
Date :
2017-05-10
Volume :
768
Publisher :
Elsevier
URI
http://hdl.handle.net/10679/5752http://www.sciencedirect.com/science/article/pii/S0370269317301843
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