# 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 L (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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Other titles: Searches for the baryon- and lepton-number violating decays $B^0\rightarrowΛ_c^+\ell^-$, $B^-\rightarrowΛ\ell^-$, and $B^-\rightarrow\barΛ\ell^-$ Journal Article, refereed, original work 07 Faculty of Science > Physics Institute 530 Physics Physical Sciences > Nuclear and High Energy Physics Physical Sciences > Physics and Astronomy (miscellaneous) English 2011 12 Feb 2012 14:37 25 Sep 2020 13:23 American Physical Society 1550-7998 (P) 1089-4918 (E) Hybrid https://doi.org/10.1103/PhysRevD.83.091101 http://arxiv.org/abs/1101.3830