Jan 1, 2018
Measurements of the absolute branching fractions of B + → X <inf>cc̄</inf> K + and B + → D̄ (*)0 π + at Belle
Physical Review D
- Volume
- 97
- Number
- 1
- First page
- 012005-1
- Last page
- 012005-10
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1103/PhysRevD.97.012005
© 2018 authors. Published by the American Physical Society. We present the measurement of the absolute branching fractions of B+→Xcc̄K+ and B+→D̄(∗)0π+ decays, using a data sample of 772×106 BB̄ pairs collected at the (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. Here, Xcc̄ denotes ηc, J/ψ, χc0, χc1, ηc(2S), ψ(2S), ψ(3770), X(3872), and X(3915). We do not observe significant signals for X(3872) or X(3915) and set the 90% confidence level upper limits at B(B+→X(3872)K+)<2.6×10-4 and B(B+→X(3915)K+)<2.8×10-4. These represent the most stringent upper limit for B(B+→X(3872)K+) to date and the first limit for B(B+→X(3915)K+). The measured branching fractions for ηc and ηc(2S) are the most precise to date, B(B+→ηcK+)=(12.0±0.8±0.7)×10-4 and B(B+→ηc(2S)K+)=(4.8±1.1±0.3)×10-4, where the first and second uncertainties are statistical and systematic, respectively.
- Link information
-
- DOI
- https://doi.org/10.1103/PhysRevD.97.012005
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85041716342&origin=inward Open access
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85041716342&origin=inward
- URL
- https://link.aps.org/doi/10.1103/PhysRevD.97.012005
- ID information
-
- DOI : 10.1103/PhysRevD.97.012005
- ISSN : 2470-0010
- eISSN : 2470-0029
- SCOPUS ID : 85041716342