Searches for B mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either Λc or Λ and the lepton is a muon or an electron. These decays violate both baryon and lepton number and would be a signature of physics beyond the standard model. No significant signal is observed in any of the decay modes, and upper limits in the range (3.2–520)×10−8 are set on the branching fractions at the 90% confidence level.

Sanchez, P.d.A., Lees, J.P., Poireau, V., Prencipe, E., Tisserand, V., Garra Tico, J., et al. (2011). Searches for the baryon- and lepton-number violating decays B(0) -> Lambda(+)(c)l(-), B(-) -> Lambda l(-), and B(-) -> (Lambda)over-barl(-). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(9), 1-8 [10.1103/PhysRevD.83.091101].

Searches for the baryon- and lepton-number violating decays B(0) -> Lambda(+)(c)l(-), B(-) -> Lambda l(-), and B(-) -> (Lambda)over-barl(-)

PATRIGNANI, CLAUDIA;
2011

Abstract

Searches for B mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either Λc or Λ and the lepton is a muon or an electron. These decays violate both baryon and lepton number and would be a signature of physics beyond the standard model. No significant signal is observed in any of the decay modes, and upper limits in the range (3.2–520)×10−8 are set on the branching fractions at the 90% confidence level.
2011
Sanchez, P.d.A., Lees, J.P., Poireau, V., Prencipe, E., Tisserand, V., Garra Tico, J., et al. (2011). Searches for the baryon- and lepton-number violating decays B(0) -> Lambda(+)(c)l(-), B(-) -> Lambda l(-), and B(-) -> (Lambda)over-barl(-). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83(9), 1-8 [10.1103/PhysRevD.83.091101].
Sanchez, P. del Amo; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; P...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/543544
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