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Searches for the baryon- and lepton-number violating decays B0→Λc+l-, B-→Λl-, and B-→Λ̅ l-

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del Amo Sanchez, P., Lees, J., Poireau, V., Prencipe, E., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., Milanes, D., Palano, A. et al.
. (2011) Searches for the baryon- and lepton-number violating decays B0→Λc+l-, B-→Λl-, and B-→Λ̅ l-. Physical Review D, Vol.83 (No.9). article no. 091101(R). ISSN 0556-2821

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Abstract

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.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 0556-2821
Date: 2011
Volume: Vol.83
Number: No.9
Number of Pages: 8
Page Range: article no. 091101(R)
Identification Number: 10.1103/PhysRevD.83.091101
Status: Peer Reviewed
Publication Status: Published
URI: http://wrap.warwick.ac.uk/id/eprint/40164

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