We present measurements of partial branching fractions of B -> K(+) X B -> K(0)X and B -> 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 -> s(d) loop transitions. The analysis is performed on a data sample consisting of 383 X 10(6)B (B) over bar pairs collected with the BABAR detector at the PEP-II e(+)e(-) asymmetric energy collider. We observe the inclusive B -> pi(+) X process and we set upper limits for B -> K(+) X and B -> K(0)X. 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.

Measurement of partial branching fractions of inclusive charmless B meson decays to K(+) K(0) and pi(+)

ANDREOTTI, Mirco;BETTONI, Diego;BOZZI, Concezio;CALABRESE, Roberto;CECCHI, Annalisa;CIBINETTO, Gianluigi;FIORAVANTI, Elisa;FRANCHINI, Paolo;GARZIA, Isabella;LUPPI, Eleonora;MUNERATO, Mauro;NEGRINI, Matteo;PETRELLA, Antonio;PIEMONTESE, Livio;
2011

Abstract

We present measurements of partial branching fractions of B -> K(+) X B -> K(0)X and B -> 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 -> s(d) loop transitions. The analysis is performed on a data sample consisting of 383 X 10(6)B (B) over bar pairs collected with the BABAR detector at the PEP-II e(+)e(-) asymmetric energy collider. We observe the inclusive B -> pi(+) X process and we set upper limits for B -> K(+) X and B -> K(0)X. 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.
2011
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1548414
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