共查询到20条相似文献，搜索用时 46 毫秒
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Applied Physics A 53, no. 3 (1991) 相似文献
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Applied Physics A 52, no. 5 (1991) 相似文献
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Rajaram D Burnstein RA Chakravorty A Chan A Chen YC Choong WS Clark K Dukes EC Durandet C Felix J Gidal G Gu P Gustafson HR Ho C Holmstrom T Huang M James C Jenkins CM Kaplan DM Lederman LM Leros N Longo MJ Lopez F Lu LC Luebke W Luk KB Nelson KS Park HK Perroud JP Rubin HA Teng PK Volk J White CG White SL Zyla P 《Physical review letters》2005,94(18):181801
A sensitive search for the lepton-number-violating decay Xi(-)-->pmu(-)mu(-) has been performed using a sample of approximately 10(9) Xi(-) hyperons produced in 800 GeV/c p-Cu collisions. We obtain B(Xi(-)-->pmu(-)mu(-))<4.0x10(-8) at 90% confidence, improving on the best previous limit by 4 orders of magnitude. 相似文献
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Abe K Abe K Abe R Abe T Adachi I Ahn BS Aihara H Akatsu M Asano Y Aso T Aulchenko V Aushev T Bakich AM Ban Y Banas E Behari S Behera PK Bondar A Bozek A Bracko M Brodzicka J Browder TE Casey BC Chang P Chao Y Chen KF Cheon BG Chistov R Choi SK Choi Y Danilov M Dong LY Dragic J Drutskoy A Eidelman S Eiges V Enari Y Everton CW Fang F Fujii H Fukunaga C Fukushima M Gabyshev N Garmash A Gershon T Gotow K Guo R Haba J Hamasaki H Handa F Hara K Hara T Hayashii H Hazumi M Heenan EM Higuchi I Higuchi T 《Physical review letters》2002,88(18):181803
We report the observation of the decay mode B(+/-) --> p(-)pK(+/-)based on an analysis of 29.4 fb(-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 p(-)p 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+/--->p(-)pK+/-) = [4.3(+1.1)(-0.9)(stat)+/-0.5(syst)]x 10(-6). We also report upper limits for the decays B(0)-->p(-)pK(S) and B(+/-)-->p(-)p pi(+/-). 相似文献