Evidence for the decay B0→ pp̅ π0

B, Pal and I, Adachi and H, Aihara and Giri, Anjan Kumar (2019) Evidence for the decay B0→ pp̅ π0. Evidence for the decay B0→ pp̅ π0.

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Abstract

We report a search for the charmless baryonic decay B 0 → ppπ¯ 0 with a data sample corresponding to an integrated luminosity of 711 fb−1 containing (772±10)×106 BB pairs. The data was collected by the Belle experiment running on the Υ(4S) resonance at the KEKB e +e − collider. We measure a branching fraction B(B 0 → ppπ¯ 0 ) = (5.0 ± 1.8 ± 0.6) × 10−7 , where the first uncertainty is 3 statistical and the second is systematic. The signal has a significance of 3.1 standard deviations and constitutes the first evidence for this decay mode. We also search for the intermediate two-body decays B 0 → ∆+p¯ and B 0 → ∆¯ −p, and set an upper limit on the branching fraction: B(B 0 → ∆+p¯) + B(B 0 → ∆¯ −p) < 1.6 × 10−6 at 90% confidence level.

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IITH Creators:
IITH CreatorsORCiD
Giri, Anjan KumarUNSPECIFIED
Item Type: Article
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 18 Apr 2019 05:18
Last Modified: 28 May 2019 07:04
URI: http://raiith.iith.ac.in/id/eprint/4972
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