Published January 1, 2017
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Lambda(c)Sigma(c)pi coupling and Sigma(c) -> Lambda(c)pi decay in lattice QCD
Creators
- 1. Tokyo Inst Technol, Dept Phys, Meguro Ku, H 27, Tokyo 1528551, Japan
- 2. Ozyegin Univ, Dept Nat & Math Sci, Fac Engn, Nisantepe Mah Orman Sok 34-36, TR-34794 Istanbul, Turkey
- 3. Gunma Natl Coll Technol, Maebashi, Gunma 3718530, Japan
Description
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. (C) 2017 The Author(s). Published by Elsevier B.V.
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