Z. Qian

activity

20202022

J/ ψ

events at BESIII

121 citations · 535 across the 17 of their papers we have counts for

collaborators

Showing 2021Show all

10 papers · 1 filter

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★ 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★ 4 cited

Observation of $D^{0 (+)} \to K_{S}^{0} π^{0 (+)} ω$ and improved measurement of $D^{0} \to K^{-} π^{+} ω$

M. Ablikim, M. N. Achasov, P. Adlarson +502

By analyzing an $e^{+} e^{-}$ annihilation data sample with an integrated luminosity of $2.93 f b^{- 1}$ taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we…

hep-ex2021★ 5 cited

Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes

BESIII Collaboration

Based on a data sample of (1.0087+-0.0044)x10^10 Jpsi events collected by the BESIII detector at the BEPCII accelerator, the absolute branching fraction (BF) of the decay Jpsi->gam…

hep-ex2021★ 1 cited

Measurement of the branching fraction for $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$

M. Ablikim, M. N. Achasov, P. Adlarson +531

Analyzing $(448.1 \pm 2.9) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$ decay is observed for the first…

hep-ex2021★ 92 cited

New Features in the Electromagnetic Structure of the Neutron

M. Ablikim, M. N. Achasov, P. Adlarson +504

Here we present new results for the Born cross section and the effective form factor of the neutron at the center-of-mass energies $s$ between 2.0 and 3.08 GeV, using…

hep-ex2021★ 12 cited

Amplitude analysis and branching fraction measurement of $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$

BESIII Collaboration

The first amplitude analysis of the decay $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$ is presented using the data samples, corresponding to an integrated luminosity of 6.32 fb $^{- 1}$ , collected with t…

hep-ex2021★ 14 cited

Observation of $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +507

Using 2.93 fb $^{- 1}$ of $e^{+} e^{-}$ collision data taken with the BESIII detector at a center-of-mass energy of 3.773 $GeV$ , the observation of the $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$ s…

hep-ex2021★ 3 cited

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$

M. Ablikim, M. N. Achasov, P. Adlarson +505

Using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.178 to 4.600 GeV, we study the process $e^+e^-\rightarr…

Search for the decay D0→π0ννˉ

Number of J/ψ events at BESIII

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

Observation of D0(+)→KS0​π0(+)ω and improved measurement of D0→K−π+ω

Measurement of the absolute branching fractions of Jpsi to gamma eta and eta decay modes

Measurement of the branching fraction for ψ(3686)→ωKS0​KS0​

New Features in the Electromagnetic Structure of the Neutron

Amplitude analysis and branching fraction measurement of Ds+​→K−K+π+π0

Observation of D0→K1​(1270)−e+νe​

Study of e+e−→π0X(3872)γ and search for Zc​(4020)0→X(3872)γ

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

Number of $J/ ψ$ events at BESIII

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

Observation of $D^{0 (+)} \to K_{S}^{0} π^{0 (+)} ω$ and improved measurement of $D^{0} \to K^{-} π^{+} ω$

Measurement of the branching fraction for $ψ (3686) \to ω K_{S}^{0} K_{S}^{0}$

Amplitude analysis and branching fraction measurement of $D_{s}^{+} \to K^{-} K^{+} π^{+} π^{0}$

Observation of $D^{0} \to K_{1} (1270)^{-} e^{+} ν_{e}$

Study of $e^{+} e^{-} \to π^{0} X (3872) γ$ and search for $Z_{c} (4020)^{0} \to X (3872) γ$