Searches for the baryon- and lepton-number violating decays $B^0\rightarrowΛ_c^+\ell^-$, $B^-\rightarrowΛ\ell^-$, and $B^-\rightarrow\barΛ\ell^-$

Details Searches for the baryon- and lepton-number violating decays $B^0\rightarrowΛ_c^+\ell^-$, $B^-\rightarrowΛ\ell^-$, and $B^-\rightarrow\barΛ\ell^-$ Searches for the baryon- and lepton-number violating decays $B^0\rightarrowΛ_c^+\ell^-$, $B^-\rightarrowΛ\ell^-$, and $B^-\rightarrow\barΛ\ell^-$

2011-01-20

arxiv.org/abs/1101.3830v2

Phys.Rev.D83:091101,2011

Physics

High Energy Physics

High Energy Physics - Experiment

10 pages, 14 EPS figures, submitted to PRD-RC

Scientific paper

10.1103/PhysRevD.83.091101

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 $(3.2-520) \times 10^{-8}$ are set on the branching fractions at the 90% confidence level.

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