Jun 29, 2015
Search for B decays to final states with the η<inf>c</inf> meson
Journal of High Energy Physics
- Volume
- 2015
- Number
- 6
- Language
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1007/JHEP06(2015)132
© 2015, The Author(s). Abstract: We report a search for B decays to selected final states with the ηc meson: B± → K±ηcπ+π−, B± → K±ηcω, B± → K±ηcη and B± → K±ηcπ0. The analysis is based on 772 × 106BB¯$$ B\overline{B} $$ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We set 90% confidence level upper limits on the branching fractions of the studied B decay modes, independent of intermediate resonances, in the range (0.6–5.3) × 10−4. We also search for molecular-state candidates in the (Formula presented.) and (Formula presented.) combinations, neutral partners of the Z(3900)± and Z(4020)±, and a poorly understood state X(3915) as possible intermediate states in the decay chain, and set 90% confidence level upper limits on the product of branching fractions to the mentioned intermediate states and decay branching fractions of these states in the range (0.6–6.9) × 10−5.
- Link information
- ID information
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- DOI : 10.1007/JHEP06(2015)132
- ISSN : 1126-6708
- eISSN : 1029-8479
- SCOPUS ID : 84978023941