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EnglishSearches 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.
http://hdl.handle.net/11384/4462| Titolo: | Searches for the baryon- and lepton-number violating decays B(0) -> Lambda(+)(c)l(-), B(-) -> Lambda l(-), and B(-) -> (Lambda)over-barl(-) |
| Autori interni: | LUSIANI, Alberto |
| Data di pubblicazione: | 2011 |
| Rivista: | PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY |
| 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. |
| Handle: | http://hdl.handle.net/11384/4462 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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