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.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.