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


BABAR Collaboration; del Amo Sanchez, P; Snoek, H (2011). Searches for the baryon- and lepton-number violating decays B0→Λc+l-, B-→Λl-, and B-→Λ̅ l-. Physical Review D, 83(9):091101.

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.

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.

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Additional indexing

Other titles:Searches for the baryon- and lepton-number violating decays $B^0\rightarrowΛ_c^+\ell^-$, $B^-\rightarrowΛ\ell^-$, and $B^-\rightarrow\barΛ\ell^-$
Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2011
Deposited On:12 Feb 2012 14:37
Last Modified:07 Dec 2017 12:27
Publisher:American Physical Society
ISSN:1550-7998 (P) 1089-4918 (E)
Publisher DOI:https://doi.org/10.1103/PhysRevD.83.091101
Related URLs:http://arxiv.org/abs/1101.3830

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Download PDF  'Searches for the baryon- and lepton-number violating decays B0→Λc+l-, B-→Λl-, and B-→Λ̅ l-'.
Preview
Content: Accepted Version
Filetype: PDF (Version 1)
Size: 252kB