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.

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

ANDREOTTI, Mirco;BETTONI, Diego;BOZZI, Concezio;CALABRESE, Roberto;CECCHI, Annalisa;CIBINETTO, Gianluigi;FIORAVANTI, Elisa;FRANCHINI, Paolo;GARZIA, Isabella;LUPPI, Eleonora;MUNERATO, Mauro;NEGRINI, Matteo;PETRELLA, Antonio;PIEMONTESE, Livio;
2011

Abstract

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.
2011
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/11392/1548202
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