J. Zhu

collaborators

5 papers

hep-ex2024

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

With a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events accumulated with the BESIII detector, we analyze the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-} (l = e,$ $μ)$ via the process $J/ψ\righ…

hep-ex2024

Observation of structures in the processes $e^{+} e^{-} \to ω χ_{c 1}$ and $ω χ_{c 2}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

We present measurements of the Born cross sections for the processes $e^{+} e^{-} \to ω χ_{c 1}$ and $ω χ_{c 2}$ at center-of-mass energies $s$ from 4.308 to 4.951 GeV. The mea…

hep-ex2023

Search for the semileptonic decays $D_{s}^{+} \to K_{1} (1270)^{0} e^{+} ν_{e}$ and $D_{s}^{+} \to b_{1} (1235)^{0} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

By analyzing 7.33\,fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we search for the semileptonic de…

hep-ex2023

Improved measurement of the branching fractions for $J / ψ \to γ π^{0}$ , $γ η$ and $γ η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

Using a data sample of $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector, the decays of $J / ψ \to γ π^{0} (η, η^{'}) \to γ γ γ$ are studied. Newly measu…

hep-ex2023

Observation of the decay $J / ψ \to e^{+} e^{-} η (1405)$ with $η (1405) \to π^{0} f_{0} (980)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +612

Using a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected by the BESIII detector in 2009, 2012, 2018 and 2019, the electromagnetic Dalitz process $J/ψ\to e^+ e^- η(14…

Measurement of the Electromagnetic Transition Form-factors in the decays η′→π+π−l+l−

Observation of structures in the processes e+e−→ωχc1​ and ωχc2​

Search for the semileptonic decays Ds+​→K1​(1270)0e+νe​ and Ds+​→b1​(1235)0e+νe​

Improved measurement of the branching fractions for J/ψ→γπ0, γη and γη′

Observation of the decay J/ψ→e+e−η(1405) with η(1405)→π0f0​(980)

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$

Observation of structures in the processes $e^{+} e^{-} \to ω χ_{c 1}$ and $ω χ_{c 2}$

Search for the semileptonic decays $D_{s}^{+} \to K_{1} (1270)^{0} e^{+} ν_{e}$ and $D_{s}^{+} \to b_{1} (1235)^{0} e^{+} ν_{e}$

Improved measurement of the branching fractions for $J / ψ \to γ π^{0}$ , $γ η$ and $γ η^{'}$

Observation of the decay $J / ψ \to e^{+} e^{-} η (1405)$ with $η (1405) \to π^{0} f_{0} (980)$