J. L. Fu

activity

20232025

collaborators

6 papers

hep-ex2025

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Using $e^{+} e^{-}$ data taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ , we report the first measu…

hep-ex2024

Observation of the charmonium decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +662

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$ is observed. We determine the p…

hep-ex2024

Measurements of Normalized Differential Cross Sections of Inclusive $η$ Production in $e^{+} e^{-}$ Annihilation at Energy from 2.0000 to 3.6710 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Using data samples collected with the BESIII detector operating at the BEPCII storage ring, the cross section of the inclusive process $e^{+} e^{-} \to η + X$ , normalized by the tota…

hep-ex2023

Measurement of the absolute branching fraction of the three-body decay $Λ_{c}^{+} \to Ξ^{0} K^{+} π^{0}$ and search for $Λ_{c}^{+} \to n K^{+} π^{0}$ , $Σ^{0} K^{+} π^{0}$ and $Λ K^{+} π^{0}$

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

The Cabbibo-favored decay $Λ_{c}^{+} \to Ξ^{0} K^{+} π^{0}$ is studied for the first time using 6.1 fb $^{- 1}$ of $e^{+} e^{-}$ collision data at center-of-mass energies between 4.600 and 4.…

hep-ex2023

Updated measurements of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with $η_{c} (2 S) \to K K ˉ π$

BESIII Collaboration, M. Ablikim, M. N. Achasov +620

Based on a data sample of $(27.08 \pm 0.14) \times 1 0^{8} ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with…

hep-ex2023

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +616

The singly Cabibbo-suppressed decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$ is observed for the first time with a statistical significance of $6.4 σ$ by using 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ colli…

First Measurement of the Decay Dynamics in the Semileptonic Transition of the D+(0) into the Axial-vector Meson Kˉ1​(1270)

Observation of the charmonium decay ηc​→γγ in J/ψ→γηc​

Measurements of Normalized Differential Cross Sections of Inclusive η Production in e+e− Annihilation at Energy from 2.0000 to 3.6710 GeV

Measurement of the absolute branching fraction of the three-body decay Λc+​→Ξ0K+π0 and search for Λc+​→nK+π0, Σ0K+π0 and ΛK+π0

Updated measurements of the M1 transition ψ(3686)→γηc​(2S) with ηc​(2S)→KKˉπ

Observation of the Singly Cabibbo-Suppressed Decay Λc+​→Σ−K+π+

First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+ (0)}$ into the Axial-vector Meson $K ˉ_{1} (1270)$

Observation of the charmonium decay $η_{c} \to γ γ$ in $J / ψ \to γ η_{c}$

Measurements of Normalized Differential Cross Sections of Inclusive $η$ Production in $e^{+} e^{-}$ Annihilation at Energy from 2.0000 to 3.6710 GeV

Measurement of the absolute branching fraction of the three-body decay $Λ_{c}^{+} \to Ξ^{0} K^{+} π^{0}$ and search for $Λ_{c}^{+} \to n K^{+} π^{0}$ , $Σ^{0} K^{+} π^{0}$ and $Λ K^{+} π^{0}$

Updated measurements of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$ with $η_{c} (2 S) \to K K ˉ π$

Observation of the Singly Cabibbo-Suppressed Decay $Λ_{c}^{+} \to Σ^{-} K^{+} π^{+}$