Improved measurement of theB0 andB+ meson lifetimes
作者： D. Buskulic , , I. Bonis , D. Decamp , P. Ghez
DOI: 10.1007/BF02906958
关键词:
摘要: The lifetimes of theB0 andB+ mesons have been measured with theAleph detector at LEP, using approximately 3 million hadronic Z decays collected in the period 1991–1994. In first three methods, semileptonic ofB0 were partially reconstructed by identifying events containing a lepton an associatedD*− or\(\bar D^0 \) meson. second method used fully reconstructedB0 mesons. third method, to measure lifetime, employed partial reconstruction technique identifyB0→D*−π+X decays.
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