We report a measurement of the inclusive semileptonic branching fraction of the B s meson using data collected with the BABAR detector in the center-of-mass energy region above the Υ(4S) resonance. We use the inclusive yield of mesons and the yield in association with a high-momentum lepton to perform a simultaneous measurement of the semileptonic branching fraction and the production rate of B s mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B s meson is determined to be B(B s→νX)=9.5-2.0+2.5(stat)-1.9+1.1(syst)%, where indicates the average of e and μ.

Lees, J., Poireau, V., Tisserand, V., Tico, J., Grauges, E., Martinelli, M., et al. (2012). Measurement of the semileptonic branching fraction of the B s meson. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(1) [10.1103/PhysRevD.85.011101].

Measurement of the semileptonic branching fraction of the B s meson

Martinelli M;CARPINELLI, Massimo;
2012

Abstract

We report a measurement of the inclusive semileptonic branching fraction of the B s meson using data collected with the BABAR detector in the center-of-mass energy region above the Υ(4S) resonance. We use the inclusive yield of mesons and the yield in association with a high-momentum lepton to perform a simultaneous measurement of the semileptonic branching fraction and the production rate of B s mesons relative to all B mesons as a function of center-of-mass energy. The inclusive semileptonic branching fraction of the B s meson is determined to be B(B s→νX)=9.5-2.0+2.5(stat)-1.9+1.1(syst)%, where indicates the average of e and μ.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2012
85
1
011101
none
Lees, J., Poireau, V., Tisserand, V., Tico, J., Grauges, E., Martinelli, M., et al. (2012). Measurement of the semileptonic branching fraction of the B s meson. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(1) [10.1103/PhysRevD.85.011101].
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/10281/389260
Citazioni
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 12
Social impact