L. Yan

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hep-ex2025

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

We report an experimental investigation of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $n ˉ p \to 2 π^{+} π^{-} π^{0}$ , and $n ˉ p \to 2 π^{+} π^{-} 2 π^{0}$ using $(10.087 \pm 0.0…

hep-ex2025

Search for a $1^{-+}$ molecular state via $e^{+} e^{-} \to γ D_{s}^{+} D_{s 1}^{-} (2536) + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

We search, for the first time, for an exotic molecular state with quantum numbers $J^{P C} = 1^{-+}$ , called $X$ , via the process $e^{+} e^{-} \to γ D_{s}^{+} D_{s 1}^{-} (2536) + c . c .$ us…

hep-ex2022

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +546

The Born cross sections of the processes $e^{+} e^{-} \to ω π^{0}$ and $e^{+} e^{-} \to ω η$ are measured at center-of-mass energies between 3.773 and 4.701 GeV using a total i…

Study of the reactions nˉp→2π+π−, 2π+π−π0, and 2π+π−2π0 using J/ψ→pπ−nˉ

Search for a 1−+ molecular state via e+e−→γDs+​Ds1−​(2536)+c.c.

Cross section measurements of the processes e+e−→ωπ0 and ωη at center-of-mass energies between 3.773 and 4.701 GeV

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

Search for a $1^{-+}$ molecular state via $e^{+} e^{-} \to γ D_{s}^{+} D_{s 1}^{-} (2536) + c . c .$

Cross section measurements of the processes $e^{+} e^{-} \to ω π^{0}$ and $ω η$ at center-of-mass energies between 3.773 and 4.701 GeV