Lei Li

activity

20102025

e^{+} e^{-} \to π^{+} π^{-} J / ψ

cross section at center-of-mass energies from 3.77 to 4.60 GeV

264 citations · 4.5k across the 118 of their papers we have counts for

collaborators

Showing 2021Show all

17 papers · 1 filter

hep-ex2021★ 10 cited

Observation of $J / ψ$ Electromagnetic Dalitz Decays to $X (1835)$ , $X (2120)$ and $X (2370)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +543

Using a sample of about 10 billion $J / ψ$ events collected at a center-of-mass energy $s = 3.097$ GeV with the BESIII detector, the electromagnetic Dalitz decays $J/ψ\to e^+e^…

hep-ex2021★ 22 cited

Search for the decay $D^{0} \to π^{0} ν ν ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +501

We present the first experimental search for the rare charm decay $D^{0} \to π^{0} ν ν ˉ$ . It is based on an $e^{+} e^{-}$ collision sample consisting of $10.6 \times 1 0^{6}$ pairs of $D…

hep-ex2021★ 121 cited

Number of $J/ ψ$ events at BESIII

BESIII Collaboration

Using inclusive decays of the $J/ ψ$ , a precise determination of the number of $J/ ψ$ events collected with the BESIII detector is performed. For the two data sets taken in 2…

hep-ex2021

Search for the decay $h_{c} \to π^{0} J / ψ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +502

A search for the decay $h_{c} \to π^{0} J / ψ$ is performed using a sample of $h_{c}$ produced in the reaction $e^{+} e^{-} \to π^{+} π^{-} h_{c}$ . The data samples were collected with the B…

hep-ex2021★ 3 cited

Observation of $J / ψ$ decays to $e^{+} e^{-} e^{+} e^{-}$ and $e^{+} e^{-} μ^{+} μ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +543

Using a data sample of $4.481 \times 1 0^{8} ψ^{'}$ events collected with the BESIII detector, we report the first observation of the four-lepton-decays $J / ψ \to e^{+} e^{-} e^{+} e^{-}$ and $J…

hep-ex2021★ 27 cited

Measurement of $Λ$ baryon polarization in $e^{+} e^{-} \to Λ Λ ˉ$ at $s = 3.773$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +505

Using a data sample of $ψ (3770)$ events collected with the BESIII detector at BEPCII corresponding to an integrated luminosity of 2.9 fb $^{- 1}$ , we report a measurement of $Λ$ spin…

Observation of J/ψ Electromagnetic Dalitz Decays to X(1835), X(2120) and X(2370)

Search for the decay D0→π0ννˉ

Number of J/ψ events at BESIII

Search for the decay hc​→π0J/ψ

Observation of J/ψ decays to e+e−e+e− and e+e−μ+μ−