Search for Baryon and Lepton Number Violation in $J/ψ\toΛ_c^+e^-+c.c.$
Creators: name: Ablikim, M.
name: Achasov, M. N.
name: Ahmed, S.
name: Albrecht, M.
name: Amoroso, A.
name: An, F. F.
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name: Deng, Z. Y.
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name: Feldbauer, F.
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name: Harris, F. A.
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name: Heinsius, F. H.
name: Held, T.
name: Heng, Y. K.
name: Holtmann, T.
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name: YifanYang
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name: Zhang, S. Q.
name: Zhang, X. Y.
name: Zhang, Y. H.
name: Zhang, Y. T.
name: YangZhang
name: YaoZhang
name: YuZhang
name: Zhang, Z. H.
name: Zhang, Z. P.
name: Zhang, Z. Y.
name: Zhao, G.
name: Zhao, J. W.
name: Zhao, J. Y.
name: Zhao, J. Z.
name: LeiZhao
name: LingZhao
name: Zhao, M. G.
name: Zhao, Q.
name: Zhao, S. J.
name: Zhao, T. C.
name: Zhao, Y. B.
name: Zhao, Z. G.
name: Zhemchugov, A.
name: Zheng, B.
name: Zheng, J. P.
name: Zheng, W. J.
name: Zheng, Y. H.
name: Zhong, B.
name: Zhou, L.
name: Zhou, X.
name: Zhou, X. K.
name: Zhou, X. R.
name: Zhou, X. Y.
name: Zhou, Y. X.
name: Zhu, J.
name: Zhu, J.
name: Zhu, K.
name: Zhu, K. J.
name: Zhu, S.
name: Zhu, S. H.
name: Zhu, X. L.
name: Zhu, Y. C.
name: Zhu, Y. S.
name: Zhu, Z. A.
name: Zhuang, J.
name: Zou, B. S.
name: Zou, J. H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: Using $1.31\times10^9$ $J/ψ$ events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process $J/ψ\toΛ_c^+e^-+c.c.$ 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 $\mathcal{B}(J/ψ\toΛ_c^+e^-+c.c.)$ is set to be $6.9\times10^{-8}$ at the 90\% Confidence Level.
description: 6 pages, 2 figures