SU(3) breaking in decays of exotic baryons

Details SU(3) breaking in decays of exotic baryons SU(3) breaking in decays of exotic baryons

2004-02-04

arxiv.org/abs/hep-ph/0402038v3

Acta Phys.Polon. B35 (2004) 1625-1642

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 6 figures, v3 to appear in Acta Physica Polonica B, some numerics corrected, conclusions unchanged

Scientific paper

Within the chiral soliton model the SU(3) breaking collective hamiltonian introduces representation mixing in the baryonic wave functions. We calculate ${\cal{O}}(m_s)$ effects of this mixing on the decay widths of decuplet and antidecuplet baryons. We find importance of the 27-plet admixture in the $\Theta^+$ and $\Xi_{\bar{10}}$ decays. The role of the $1/N_c$ nonleading terms in ${\cal{O}}(m_s)$ transition matrix elements is discussed.

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