https://doi.org/10.1140/epjc/s10052-009-0984-4
Regular Article - Theoretical Physics
Strong decays Σ *→Σ π,Λ π and related strong coupling constant
Department of Physics, North China Electric Power University, Baoding, 071003, China
* e-mail: wangzgyiti@yahoo.com.cn
Received:
13
October
2008
Revised:
12
February
2009
Published online:
8
April
2009
We calculate the strong coupling constant g among the decuplet baryons, the octet baryons and the pseudoscalar mesons in the heavy baryon chiral perturbation theory with the light-cone QCD sum rules, and we study the strong decays Σ *→Λ π,Σ π. The numerical value of the strong coupling constant g is consistent with our previous calculation; the central values lead to small SU(3) breaking effects, less than 6%; and no definitive conclusion can be drawn due to the large uncertainties.
PACS: 13.30.-a – / 13.75.Gx –
© Springer-Verlag , 2009
