Measurement of partial branching fractions of inclusive charmless B meson decays to K^+, K^0, and π^+
Abstract
We present measurements of partial branching fractions of B → K^+X, B → K^0X, 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 × 10^6B B̅ 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 → K^0X. 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.
Additional Information
© 2011 American Physical Society. Received 23 December 2010; published 14 February 2011. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), CEA and CNRS-IN2P2 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), STFC (United Kingdom). Individuals have received support from the Marie Curie EIF (European Union), the A. P. Sloan Foundation (USA) and the Binational Science Foundation (USA-Israel).Attached Files
Published - PhysRevD_83_031103.pdf
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Additional details
- Eprint ID
- 22831
- Resolver ID
- CaltechAUTHORS:20110311-141827790
- Stanford Linear Accelerator Center (SLAC)
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Commissariat à l'Energie Atomique (CEA) (France)
- Centre National de la Recherche Scientifique (CNRS) Institut National de Physique Nucléaire et Physique des Particules (IN2P3) (France)
- Bundesministerium fur Bildung und Forschung (BMBF) (Germany)
- German Deutsche Forschungsgemeinschaft (DFG) (Germany)
- Istituto Nazionale di Fisica Nucleare (INFN) (Italy)
- Foundation for Fundamental Research on Matter (FOM) (The Netherlands)
- Research Council of Norway (NFR)
- Ministry of Education and Science of the Russian Federation (MES) (Russia)
- Ministerio de Ciencia e Innovación (MCINN) (Spain)
- Science and Technology Facilities Council (STFC) (UK)
- European Union
- A. P. Sloan Foundation
- Binational Science Foundation (USA-Israel)
- Created
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2011-03-11Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field