Searches for the baryon- and lepton-number violating decays B0→Λ+cℓ−, B−→Λℓ−, and B−→Λˉℓ−.

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.



Titolo: Searches for the baryon- and lepton-number violating decays B0→Λ+cℓ−, B−→Λℓ−, and B−→Λˉℓ−.
Autori: 
BIASINI, Maurizio
PACETTI, Simone
PERUZZI, Ida Marena
ROSSI, ALESSANDRO
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, wh...ere 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.
Handle: http://hdl.handle.net/11391/931624
Appare nelle tipologie:1.1 Articolo in rivista

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http://hdl.handle.net/11391/931624
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