L. Zhang

activity

20202024

collaborators

3 papers

hep-ex2024

Observation of the Electromagnetic Dalitz Transition $h_{c} \to e^{+} e^{-} η_{c}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +504

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ decays and data samples of $e^{+} e^{-}$ collisions with $s$ from 4.130 to 4.780~GeV collected with the BESIII detector, we report the…

hep-ex2021

Search for the rare semi-leptonic decay $J / ψ \to D^{-} e^{+} ν_{e} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +503

Using $10.1 \times 1 0^{9}$ $J / ψ$ events produced by the Beijing Electron Positron Collider (BEPCII) at a center-of-mass energy $s = 3.097 GeV$ and collected with the BESIII…

hep-ex2020

Observation of di-structures in $e^{+} e^{-} \to J / ψ X$ at center-of-mass energies around 3.773 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +477

We report a measurement of the observed cross sections of the inclusive $J / ψ$ production in $e^{+} e^{-} \to J / ψ X$ based on 3.21 fb $^{- 1}$ of data accumulated at energies…

Observation of the Electromagnetic Dalitz Transition hc​→e+e−ηc​

Search for the rare semi-leptonic decay J/ψ→D−e+νe​+c.c.

Observation of di-structures in e+e−→J/ψX at center-of-mass energies around 3.773 GeV

Observation of the Electromagnetic Dalitz Transition $h_{c} \to e^{+} e^{-} η_{c}$

Search for the rare semi-leptonic decay $J / ψ \to D^{-} e^{+} ν_{e} + c . c .$

Observation of di-structures in $e^{+} e^{-} \to J / ψ X$ at center-of-mass energies around 3.773 GeV