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    高師機構典藏 NKNUIR > 理學院 > 物理學系 > 期刊論文 >  Item 987654321/10666
    Please use this identifier to cite or link to this item: http://ir.nknu.edu.tw/ir/handle/987654321/10666


    題名: Observation of B+- ---> P Anti-P K+-
    Authors: 郭榮升
    K. Abe;Rurng-Sheng Kuo
    貢獻者: 物理系
    Date: 2002-04-23
    Issue Date: 2010-11-11 09:06:40 (UTC+8)
    Abstract: We report the observation of the decay mode B±→pp¯K± based on an analysis of 29.4fb−1 of data collected by the Belle detector at KEKB. This is the first example of a b→s transition with baryons in the final state. The pp¯ mass spectrum in this decay is inconsistent with phase space and is peaked at low mass. The branching fraction for this decay is measured to be B(B±→pp¯K±)=[4.3+1.1−0.9(stat)±0.5(syst)]×10−6. We also report upper limits for the decays B0→pp¯KS and B±→pp¯π±.
    關聯: Phys.Rev.Lett. / Vol.88, P.181803
    Appears in Collections:[物理學系] 期刊論文
    [物理系] 郭榮升

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