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

Abstract : We present measurements of partial branching fractions of $B \rightarrow K^+ X$, $B \rightarrow K^0 X$, and $B \rightarrow \pi^+ X$, 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 $b \rightarrow s(d)$ loop transitions. The analysis is performed on a data sample consisting of $383 \times 10^6$ $B \bar{B}$ pairs collected with the BaBar detector at the PEP-II $e^+e^-$ asymmetric energy collider. Our results are in agreement with standard model predictions and exclude large enhancements of the inclusive branching fraction due to sources of new physics.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00550050
Contributor : Swarna Bassava <>
Submitted on : Thursday, December 23, 2010 - 11:47:45 AM
Last modification on : Tuesday, December 22, 2020 - 12:40:02 PM

### Citation

P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe, V. Tisserand, et al.. Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K0, and pi+. Physical Review D, American Physical Society, 2011, 83, pp.031103. ⟨10.1103/PhysRevD.83.031103⟩. ⟨in2p3-00550050⟩

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