2015/01/31 by R.M. Albuquerque, R. M. Albuquerque, M. Nielsen +4
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1502.00119
5 pages, 2 figures, 1 table. arXiv admin note: text overlap with arXiv:1105.1343
arxiv created 2015/01/31 · openalex publication_date 2015/01/31 · arxiv updated 2015/02/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the branching ratio for the production of the meson Y(4260) in the decay B- → Y(4260)K-. We use QCD sum rules approach and we consider the Y(4260) to be a mixture between charmonium and exotic tetraquark, [cq][qc], states with JPC=1--. Using the value of the mixing angle determined previously as: θ=(53.0±0.5)^∘, we get the branching ratio B(B→ Y(4260)K)=(1.34±0.47)×10-6, which allows us to estimate an interval on the branching fraction 3.0 × 10-8 < \mathcal BY < 1.8 × 10-6 in agreement with the experimental upper limit reported by Babar Collaboration.