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 383×106BB̄ 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.

Sanchez, P., Lees, J., Poircau, V., Prencipe, E., Tisserand, V., Tico, J., et al. (2011). Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K0, and π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(3) [10.1103/PhysRevD.83.031103].

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

Martinelli M;CARPINELLI, Massimo;
2011

Abstract

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 383×106BB̄ 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.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2011
83
3
031103
none
Sanchez, P., Lees, J., Poircau, V., Prencipe, E., Tisserand, V., Tico, J., et al. (2011). Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K0, and π+. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(3) [10.1103/PhysRevD.83.031103].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389291
Citazioni
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 3
Social impact