Cabibbo-suppressed decays of the Omega_c^0 - feedback to the Xi_c^+ lifetime

Details Cabibbo-suppressed decays of the Omega_c^0 - feedback to the Xi_c^+ lifetime Cabibbo-suppressed decays of the Omega_c^0 - feedback to the Xi_c^+ lifetime

2004-06-16

arxiv.org/abs/hep-ph/0406183v1

Phys.Rev. D70 (2004) 117501

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 3 figures

Scientific paper

10.1103/PhysRevD.70.117501

We investigate a possible background of the type Omega_c^0 --> Xi_c^+ pi^- to the CLEO Xi_c^+ lifetime measurement. This decay mode may lead to an overestimate of the Xi_c^+ decay length and, therefore, increase the measured Xi_c^+ lifetime. The branching ratio Gamma(Omega_c^0 --> Xi_c^+ pi^-)/Gamma(Omega_c^0 --> Omega^- pi^+) is analyzed in the framework of the pole model and the modified current algebra. We find that the Omega_c^0 --> Xi_c^+ pi^- decay mode could not generate a substantial systematic error in the Xi_c^+ lifetime measurement. Also, it cannot significantly reduce the disagreement between theoretical and experimental values of the Xi_c^+ lifetime.

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