arxiv: 1803.04789 · v1 · submitted 2018-03-13 · ✦ hep-ex
Recognition: unknown
Search for Baryon and Lepton Number Violation in J/psitoΛ_c^+e^-+c.c.
M.Ablikim
,
M.N.Achasov
,
S.Ahmed
,
M.Albrecht
,
A.Amoroso
,
F.F.An
,
Q.An
,
J.Z.Bai
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Y.Bai
O.Bakina
R.Baldini Ferroli
Y.Ban
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N.Berger
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J.M.Bian
F.Bianchi
E.Boger
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H.Cai
X.Cai
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Y.B.Chen
X.K.Chu
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classification
✦ hep-ex
keywords
lambdabaryonleptonnumberprocesssearchtimes10beijing
read the original abstract
Using $1.31\times10^9$ $J/\psi$ events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process $J/\psi\to\Lambda_c^+e^-+c.c.$ for the first time. In this process, both baryon and lepton number conservation is violated. No signal is found and the upper limit on the branching fraction $\mathcal{B}(J/\psi\to\Lambda_c^+e^-+c.c.)$ is set to be $6.9\times10^{-8}$ at the 90\% Confidence Level.
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