Study of B→p¯pππ

Belle Collaboration,; Chu, K.; et al.,

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Study of B→p¯pππ

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Belle Collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Chu, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

et al.,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

Belle Collaboration, Chu, K., & et al. (2020). Study of B→p¯pππ. Physical Review D, 101, 052012. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2020-370.

Cite as: https://hdl.handle.net/21.11116/0000-0008-1AE1-D

Abstract

Using a data sample of 772×106 BB pairs collected on the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider, we report the observations of B0→pp¯π+π− and B+→pp¯π+π0. We measure a decay branching fraction of (0.83±0.17±0.17)×10−6 in B0→pp¯π+π− for Mπ+π−<1.22GeV/c2 with a significance of 5.5 standard deviations. The contribution from B0→pp¯K0 is excluded. We measure a decay branching fraction of (4.58±1.17±0.67)×10−6 for B+→pp¯π+π0 with Mπ+π0<1.3GeV/c2 with a significance of 5.4 standard deviations. We study the difference of the Mpp¯ distributions in B0→pp¯π+π− and B+→pp¯π+π0.