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- W2938579646 abstract "We report a search for X(3872) and X(3915) in B+→χc1π0K+ decays. We set an upper limit of B(B+→X(3872)K+)×B(X(3872)→χc1π0)<8.1×10−6 and B(B+→X(3915)K+)×B(X(3915)→χc1π0)<3.8×10−5 at 90% confidence level. We also measure B(X(3872)→χc1π0)/B(X(3872)→J/ψπ+π−)<0.97 at 90% confidence level. The results reported here are obtained from 772×106 BB¯ events collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider.Received 15 April 2019DOI:https://doi.org/10.1103/PhysRevD.99.111101Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasBranching fractionParticle decaysQuark modelPhysical SystemsExotic mesonsHeavy mesonsAccelerators & BeamsParticles & Fields" @default.
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