Observation of charmless hadronic b decays

, ALEPH Collaboration (1996) Observation of charmless hadronic b decays. Physics Letters B, 384 (1-4). pp. 471-480. ISSN 0370-2693

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Four candidates for charmless hadronic B decay are observed in a data sample of four million hadronic Z decays recorded by the aleph detector at lep. The probability that these events come from background sources is estimated to be less than 10−6. The average branching ratio of weakly decaying B hadrons (a mixture of Bd0, Bs0 and Λb weighted by their production cross sections and lifetimes, here denoted B) into two long-lived charged hadrons (pions, kaons or protons) is measured to be Br(B → h+h−) = (1.7−0.7+1.0 ± 0.2) × 10−5. The relative branching fraction is measured to be 1.0−0.3 −0.1+0.0 +0.0. In addition, branching ratio upper limits are obtained for a variety of exclusive charmless hadronic two-body decays of B hadrons.

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Journal Article
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Physics Letters B
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14 May 2013 13:42
Last Modified:
21 Nov 2022 23:41