Q. Ouyang

collaborators

12 papers

hep-ex2026

First measurements of the branching fractions of $J / ψ$ and $ψ (3686) \to Σ^{0} Σ ˉ^{0} η$

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

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ and $(2712 \pm 14) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, the hadronic decays $J/ψ\to…

hep-ex2026

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay $Σ^{0} \to Λ e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Based on a data sample of 10 billion $J / ψ$ events collected with the BESIII detector operating at the BEPCII collider, the Dalitz decay $Σ^{0} \to Λ e^{+} e^{-}$ is studied experim…

hep-ex2026

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +765

Based on $(8998 \pm 40) \times 1 0^{6}$ $J / ψ$ events collected in $e^{+} e^{-}$ collisions at $s = 3.097$ GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} I^ˉ ^{+} I^£^{-} + c.c.$ 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

First Measurement of the Relative Phase between Proton Psionic Form Factors

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…

hep-ex2026

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I^\cdot J / I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using a data sample corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ collected at center-of-mass energies from 4.18 to 4.95 GeV with the BESIII detector, we observe the…

First measurements of the branching fractions of J/ψ and ψ(3686)→Σ0Σˉ0η

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay Σ0→Λe+e−

Search for the charged lepton flavour violating decay η′→eμ

Measurement of Born Cross Section for e+e−→KS0​I^ˉ+I^£−+c.c. at s​=3.51−4.95 GeV

First Measurement of the Relative Phase between Proton Psionic Form Factors

Search for an isoscalar partner of the Zc​(3900) in e+e−→I¨+I¨−I^⋅J/I¨

First measurements of the branching fractions of $J / ψ$ and $ψ (3686) \to Σ^{0} Σ ˉ^{0} η$

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay $Σ^{0} \to Λ e^{+} e^{-}$

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

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

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I^\cdot J / I ¨ $