We present a search for semileptonic B decays to the charmed baryon Λc+ based on 420fb -1 of data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e +e - storage rings. By fully reconstructing the recoiling B in a hadronic decay mode, we reduce non-B backgrounds and determine the flavor of the signal B. We statistically correct the flavor for the effect of the B0 mixing. We obtain a 90% confidence level upper limit of B(B̄→Λc+X -ν ̄)/B(B̄→Λc+X)<3.5%. © 2012 American Physical Society.

Lees, J., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., et al. (2012). Search for B̄→Λc+X -ν ̄ decays in events with a fully reconstructed B meson. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(1), 1-8 [10.1103/PhysRevD.85.011102].

Search for B̄→Λc+X -ν ̄ decays in events with a fully reconstructed B meson

PATRIGNANI, CLAUDIA;
2012

Abstract

We present a search for semileptonic B decays to the charmed baryon Λc+ based on 420fb -1 of data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e +e - storage rings. By fully reconstructing the recoiling B in a hadronic decay mode, we reduce non-B backgrounds and determine the flavor of the signal B. We statistically correct the flavor for the effect of the B0 mixing. We obtain a 90% confidence level upper limit of B(B̄→Λc+X -ν ̄)/B(B̄→Λc+X)<3.5%. © 2012 American Physical Society.
2012
Lees, J., Poireau, V., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., et al. (2012). Search for B̄→Λc+X -ν ̄ decays in events with a fully reconstructed B meson. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(1), 1-8 [10.1103/PhysRevD.85.011102].
Lees, J.P; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D.A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; S...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/552940
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