Search for the Bc meson in hadronic Z decays
Abstract
A search for the Bc meson decaying into the channels J/ψπ+ and J/ψl+vl (l = e or μ) is performed in a sample of 3.9 million hadronic Z decays collected by the ALEPH detector. This search results in the observation of 0 and 2 candidates in each of these channels, respectively, while 0.44 and 0.81 background events are expected. The following 90% confidence level upper limits are derived:<!- FORMULA OMITTED -> Another B+c -> J/ψ(e+e-)μ+vμ candidate with very low background probability, found in an independent analysis, is also described in detail.
- Publication:
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Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00461-9
- Bibcode:
- 1997PhLB..402..213B