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Evidence for B0 →p Σ¯ 0 π- at Belle

Journal Article · · Physical Review. D.
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We search for the B0 → p$$\overline{Σ}$$0π- decay with $$\overline{Σ}$$0 → $$\overline{Λ}$$ γ, where the γ is not measured, using a data sample corresponding to an integrated luminosity of 711 fb-1 which contains 772 × 106 B$$\overline{B}$$ pairs, collected around the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure for the first time the B0 → p$$\overline{Σ}$$0π- branching fraction to be $$\mathscr{B}$$(B0 → p$$\overline{Σ}$$0π-) = $$({1.17}_{-0.40}^{+0.43} (stat) ± 0.07(syst))$$ X 10-6 with a significance of 3.0σ. We simultaneously measure the branching fraction for the related channel B0 → p$$\overline{Λ}$$ π- with much improved precision.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE
Contributing Organization:
Belle Collaboration
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2424152
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 5 Vol. 108; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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