文章基本信息

标题：Study of charmed baryons decays and D^0 -> K0 pi0 decay at Belle
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作者：S. Semenov
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2001
卷号：2001
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present measurements of 0 c ! −+ decay, the Cabibbo-suppressed decays + c ! 0K+ and + c ! 0K+ (both rst observations), + c ! +K+− (seen with large statistics for the rst time), + c ! pK+K− and + c ! p (measured with improved accuracy). Improved branching ratio measurements for the decays + c ! +K+K− and + c ! +, which are attributed to the W-exchange diagrams, are shown. We report on the rst evidence for + c ! (1690)0K+ and set an upper limit on non-resonant decay + c ! +K+K−. A measurement of the ratio of D0 decay rates into K0 L 0 and K0 S 0 nal states is also presented. This ratio can be used to disentangle the Cabibbo favored D0 ! K00 and doubly Cabibbo suppressed D0 ! K00 amplitudes, and contributes to constrain the strong phase K between D0 ! K−+ and D0 ! K+−. The results reported here are based on a data sample of 23.6 fb−1 collected by Belle detector at the e+e− asymmetric collider KEKB.