Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K0, and π+

We present measurements of partial branching fractions of B→K+X, B→K0X, and B→π+X, where X denotes any accessible final state above the endpoint for B decays to charmed mesons, specifically for momenta of the candidate hadron greater than 2.34 (2.36) GeV for kaons (pions) in the B rest frame. These...

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Bibliographic Details
Main Authors: Amo Sanchez, Pablo del (Author) , Adametz, A. (Author) , Marks, Jörg (Author) , Uwer, Ulrich (Author)
Corporate Author: BABAR Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 14 February 2011
In: Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2011, Volume: 83, Issue: 3, Pages: 1-8
ISSN:1550-2368
DOI:10.1103/PhysRevD.83.031103
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.83.031103
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.83.031103
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Author Notes:The Babar Collaboration*
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Summary:We present measurements of partial branching fractions of B→K+X, B→K0X, and B→π+X, where X denotes any accessible final state above the endpoint for B decays to charmed mesons, specifically for momenta of the candidate hadron greater than 2.34 (2.36) GeV for kaons (pions) in the B rest frame. These measurements are sensitive to potential new-physics particles which could enter the b→s(d) loop transitions. The analysis is performed on a data sample consisting of 383×106B¯¯¯B pairs collected with the BABAR detector at the PEP-II e+e− asymmetric energy collider. We observe the inclusive B→π+X process, and we set upper limits for B→K+X and B→K0X. Our results for these inclusive branching fractions are consistent with those of known exclusive modes, and exclude large enhancements due to sources of new physics.
Item Description:*The Babar Collaboration: P. del Amo Sanchez, J. Marks, U. Uwer [und 429 weitere Personen]
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Physical Description:Online Resource
ISSN:1550-2368
DOI:10.1103/PhysRevD.83.031103