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Strong decays Σ *→Σ π,Λ π and related strong coupling constant

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Abstract

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.

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Authors and Affiliations

  1. Department of Physics, North China Electric Power University, Baoding, 071003, China

    Zhi-Gang Wang

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  1. Zhi-Gang Wang
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Correspondence to Zhi-Gang Wang.

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Wang, ZG. Strong decays Σ *→Σ π,Λ π and related strong coupling constant. Eur. Phys. J. C 61, 299–309 (2009). https://doi.org/10.1140/epjc/s10052-009-0984-4

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  • DOI: https://doi.org/10.1140/epjc/s10052-009-0984-4

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