Evidence for the decay X(3872) -> J/psi omega

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doi:10.1103/PhysRevD.82.011101

We present a study of the decays B0,+→J/ψπ+π−π0K0,+, using 467×106 BB⎯⎯⎯ pairs recorded with the BABAR detector. We present evidence for the decay mode X(3872)→J/ψω, with product branching fractions ℬ(B+→X(3872)K+)×ℬ(X(3872)→J/ψω)=[0.6±0.2(stat)±0.1(syst)]×10−5, and ℬ(B0→X(3872)K0)×ℬ(X(3872)→J/ψω)=[0.6±0.3(stat)±0.1(syst)]×10−5. A detailed study of the π+π−π0 mass distribution from X(3872) decay favors a negative-parity assignment.

Sanchez, P.d., Lees, J.p., Poireau, V., Prencipe, E., Tisserand, V., Tico, J.g., et al. (2010). Evidence for the decay X(3872) -> J/psi omega. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 82(1), 1-8 [10.1103/PhysRevD.82.011101].