Journal article
Observations of π-B charge-flavor correlations and resonant Bπ and BK production
R Akers, G Alexander, J Allison, K Ametewee, KJ Anderson, S Arcelli, S Asai, A Astbury, D Axen, G Azuelos, AH Ball, E Barberio, RJ Barlow, R Bartoldus, JR Batley, G Beaudoin, A Beck, GA Beck, C Beeston, T Behnke Show all
European Physical Journal C | SPRINGER VERLAG | Published : 1995
DOI: 10.1007/BF01496577
Abstract
Evidence is presented for kinematic and charge correlations of B mesons with charged pions and kaons. Using a new technique, a sample of over 80 000 partially reconstructed B mesons is obtained in 3.5·106 hadronic Z0 decays recorded using the OPAL detector at LEP. The invariant mass distributions of B+π- and B+K- combinations show enhancements consistent with the decays of P-wave resonances of a b antiquark and a light quark. We observe an excess of 1738±195 B+π- pairs with invariant masses in the range 5.60-5.85 GeV and an excess of 149±31 B+K- pairs with invariant masses in the range 5.80-6.00 GeV. Labeling the observed enhancements generically as B** we find {Mathematical expression} wher..
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