Search for baryon and lepton number violation in J/ψ → Λc+e- + c.c.
Search for baryon and lepton number violation in J/ψ → Λc+e- + c.c.
复制标题
在 J/psi -> Lambda( )(c)e(-) c.c 中搜索重子和轻子数违规。
DOI：
10.1103/physrevd.99.072006
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发表时间：
2019-04-12
影响因子：
5
通讯作者：
Zou, J. H.
中科院分区：
文献类型：
--
作者：
Ablikim, M.;Achasov, M. N.;Zou, J. H.
Using 1.31 x 10(9) J/psi events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process J/psi -> 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 B(J/psi -> Lambda(+)(c)e(-) + c.c.) is set to be 6.9 x 10(-8) at the 90% confidence level.
