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Observation of the decay B[over ¯]^{0}→Λ_{c}^{+}p[over ¯]π^{0}

Aubert, B. et al. (2010) Observation of the decay B[over ¯]^{0}→Λ_{c}^{+}p[over ¯]π^{0}. Physical Review D, 82 (3). 031102. ISSN 1550-7998

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In a sample of 467×106 BB̅ pairs collected with the BABAR detector at the PEP-II collider at SLAC we have observed the decay B̅ 0→Λc+p̅ π0 and measured the branching fraction to be (1.94±0.17±0.14±0.50)×10-4, where the uncertainties are statistical, systematic, and the uncertainty on the Λc+→pK-π+ branching fraction, respectively. We determine an upper limit of 1.5×10-6 at 90% C.L. for the product branching fraction B(B̅ 0→Σc+(2455)p̅ )×B(Λc+→pK-π+). Furthermore, we observe an enhancement at the threshold of the invariant mass of the baryon-antibaryon pair.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
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Depositing User: Sharon Beastall
Date Deposited: 05 Jan 2012 13:52
Last Modified: 28 Aug 2021 11:13


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