SU(3) breaking in decays of exotic baryons

2004/02/29 by Michal Praszalowicz
Physics and Astronomy · #hep-ph

paper · pdf

published as Acta Phys.Polon. B35 (2004) 1625-1642 · 17 pages, 6 figures, v3 to appear in Acta Physica Polonica B, some numerics corrected, conclusions unchanged

arxiv created 2004/04/26 · arxiv updated 2009/12/01

Abstract

Within the chiral soliton model the SU(3) breaking collective hamiltonian introduces representation mixing in the baryonic wave functions. We calculate \calO(m_s) effects of this mixing on the decay widths of decuplet and antidecuplet baryons. We find importance of the 27-plet admixture in the Θ⁺ and Ξ_10 decays. The role of the 1/N_c nonleading terms in \calO(m_s) transition matrix elements is discussed.

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