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

P. del Amo Sanchez, J. P. Lees, V. Poireau, E. Prencipe, V. Tisserand, J. Garra Tico, E. Grauges, M. Martinelli, D. A. Milanes, A. Palano, …
Physical review. D, Particles, fields, gravitation, and cosmology, Vol.83(9)
13/05/2011
DOI: https://doi.org/10.1103/PhysRevD.83.091101

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
Searches for B mesons decaying to final states containing a baryon and a lepton are performed, where the baryon is either Lambda(c) or Lambda 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) x 10(-8) are set on the branching fractions at the 90% confidence level.
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https://doi.org/10.1103/PhysRevD.83.091101View
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