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We investigate a possible background of the type Omega_c^0 --> Xi_c^+ pi^- tothe CLEO Xi_c^+ lifetime measurement. This decay mode may lead to anoverestimate of the Xi_c^+ decay length and, therefore, increase the measuredXi_c^+ lifetime. The branching ratio Gamma(Omega_c^0 --> Xi_c^+pi^-)/Gamma(Omega_c^0 --> Omega^- pi^+) is analyzed in the framework of thepole 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 theXi_c^+ lifetime measurement. Also, it cannot significantly reduce thedisagreement between theoretical and experimental values of the Xi_c^+lifetime.Comment: 9 pages, 3 figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Cabibbo-suppressed decays of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>Ω</mml:mi><mml:mi>c</mml:mi><mml:mn>0</mml:mn></mml:msubsup></mml:math>—Feedback to the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>Ξ</mml:mi><mml:mi>c</mml:mi><mml:mo>+</mml:mo></mml:msubsup></mml:math>lifetime

Cabibbo-suppressed decays of theΩc0—Feedback to theΞc+lifetime