W. Lan

collaborators

11 papers

hep-ex2026

Observation of double $s s ˉ$ production in $e^{+} e^{-}$ collision at $s = 3.08 GeV$

BESIII Collaboration, M. Ablikim, M. N. Achasov +779

We report the observation of significant double- $s s ˉ$ production in the $e^{+} e^{-}$ continuum, based on the measurement of prompt $ϕ$ mesons produced in association with hadrons…

hep-ex2026

Measurement of the cross sections of $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{0} Λ/ Σ^{0} + c.c.$ at center-of-mass energies between 3.510 and 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +779

Using $e^{+} e^{-}$ collision data samples collected with the BESIII detector at the BEPCII at center-of-mass energies between 3.510 and 4.951 GeV corresponding to an integrated luminos…

hep-ex2026

Measurement of inelastic scattering $Λ (Λ) + p \to Σ^{0} (Σ^{0}) + p$ via $e^{+} e^{-} \to J / ψ \to Λ Λ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +774

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we investigate the inelastic scattering processes $Λ + p \to Σ^{0} + p$ and $\overlineΛ+p\to…

hep-ex2026

Observation of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

Using a sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector, the decay of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$ is observed for the fir…

hep-ex2026

Observation of the $χ_{c J}$ decays into $p K^{-} Λ ˉ η + c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +780

By analyzing $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays $χ_{cJ} \to pK^{-}\barΛη+ \mathrm{c.…

hep-ex2026

Evidence for $η_{c} (2 S) \to p p ˉ π^{+} π^{-} π^{0}$ and observation of $χ_{c J} \to p p ˉ π^{+} π^{-} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +771

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected by the BESIII detector at the BEPCII collider, the $ψ (3686) \to γ p p ˉ π^{+} π^{-} π^{0}$ process is investigated. Evidence…

hep-ex2026

High-precision measurement of the space-like $η^{'}$ transition form factor

BESIII Collaboration, M. Ablikim, M. N. Achasov +779

Using a data sample corresponding to an integrated luminosity of $20.3 fb^{- 1}$ , collected with the BESIII detector at a center-of-mass energy of $3.773 GeV$ at the…

hep-ex2026

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{+} Σ^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +759

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to a total integrated luminosity of 44~fb $^{- 1}$ , we present the first measure…

hep-ex2026

Observation of $η_{c} \to p p ˉ η$ via $ψ (3686) \to γ p p ˉ η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

The decay $η_{c} \to p p ˉ η$ is observed for the first time with a significance of exceeding $10 σ$ . It is found by analyzing $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events accumu…

hep-ex2026

Measurement of Born Cross Sections for $e^{+} e^{-} \to K^{+} Ξ^{0} Σ ˉ^{-}$ at $s = 3.51 - 4.95$ GeV and Observation of $ψ (3770) \to K^{+} Ξ^{0} Σ ˉ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +771

Using 44.55 fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at the BEPCII collider, we report the first measurement of the Born cross sections for the $e^+e^-…

hep-ex2026

Observation of $η_{c} (1 S) \to Σ^{0} Σ ˉ^{0}$ and search for $h_{c} (1 P) \to Σ^{0} Σ ˉ^{0}$ via $ψ (3686)$ transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +776

Using $(2712.4 \pm 14.3) \times 1 0^{6} ψ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, the hadronic decay $η_{c} \to Σ^{0} Σ^{0} ˉ$ is observed fo…

Observation of double ssˉ production in e+e− collision at s​=3.08 GeV

Measurement of the cross sections of e+e−→KS0​Ξˉ0Λ/Σ0+c.c. at center-of-mass energies between 3.510 and 4.951 GeV

Measurement of inelastic scattering Λ(Λ)+p→Σ0(Σ0)+p via e+e−→J/ψ→ΛΛ

Observation of ψ(3686)→pK−KS0​Ξˉ0+c.c.

Observation of the χcJ​ decays into pK−Λˉη+c.c.

Evidence for ηc​(2S)→ppˉ​π+π−π0 and observation of χcJ​→ppˉ​π+π−π0

High-precision measurement of the space-like η′ transition form factor

Measurement of Born Cross Section for e+e−→KS0​Ξˉ+Σ−+c.c. at s​=3.51−4.95 GeV

Observation of ηc​→ppˉ​η via ψ(3686)→γppˉ​η

Measurement of Born Cross Sections for e+e−→K+Ξ0Σˉ− at s​=3.51−4.95 GeV and Observation of ψ(3770)→K+Ξ0Σˉ−

Observation of ηc​(1S)→Σ0Σˉ0 and search for hc​(1P)→Σ0Σˉ0 via ψ(3686) transitions

Observation of double $s s ˉ$ production in $e^{+} e^{-}$ collision at $s = 3.08 GeV$

Measurement of the cross sections of $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{0} Λ/ Σ^{0} + c.c.$ at center-of-mass energies between 3.510 and 4.951 GeV

Measurement of inelastic scattering $Λ (Λ) + p \to Σ^{0} (Σ^{0}) + p$ via $e^{+} e^{-} \to J / ψ \to Λ Λ$

Observation of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$

Observation of the $χ_{c J}$ decays into $p K^{-} Λ ˉ η + c.c.$

Evidence for $η_{c} (2 S) \to p p ˉ π^{+} π^{-} π^{0}$ and observation of $χ_{c J} \to p p ˉ π^{+} π^{-} π^{0}$

High-precision measurement of the space-like $η^{'}$ transition form factor

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} Ξ ˉ^{+} Σ^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

Observation of $η_{c} \to p p ˉ η$ via $ψ (3686) \to γ p p ˉ η$

Measurement of Born Cross Sections for $e^{+} e^{-} \to K^{+} Ξ^{0} Σ ˉ^{-}$ at $s = 3.51 - 4.95$ GeV and Observation of $ψ (3770) \to K^{+} Ξ^{0} Σ ˉ^{-}$

Observation of $η_{c} (1 S) \to Σ^{0} Σ ˉ^{0}$ and search for $h_{c} (1 P) \to Σ^{0} Σ ˉ^{0}$ via $ψ (3686)$ transitions