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 383×106BB⎯⎯⎯ 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.d.A., Lees, J.P., Poircau, V., Prencipe, E., Tisserand, V., Tico, J.G., et al. (2011). Measurement of partial branching fractions of inclusive charmless B meson decays to K(+), K(0), and pi(+). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(3), 1-8 [10.1103/PhysRevD.83.031103].

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

PATRIGNANI, CLAUDIA;
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 383×106BB⎯⎯⎯ 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.
2011
Sanchez, P.d.A., Lees, J.P., Poircau, V., Prencipe, E., Tisserand, V., Tico, J.G., et al. (2011). Measurement of partial branching fractions of inclusive charmless B meson decays to K(+), K(0), and pi(+). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(3), 1-8 [10.1103/PhysRevD.83.031103].
Sanchez, P. del Amo; Lees, J. P.; Poircau, V.; Prencipe, E.; Tisserand, V.; Tico, J. Garra; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; P...espandi
File in questo prodotto:
Eventuali allegati, non sono esposti

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/11585/543502
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 3
social impact