Jianglei Yu

collaborators

3 papers

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-ex2012

First observation of the isospin violating decay $J / ψ \to Λ Σ ˉ^{0} + c . c .$

M. Ablikim, M. N. Achasov, D. J. Ambrose +353

Using a sample of $(225.2 \pm 2.8) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we present results of a study of $J / ψ \to γ Λ Λ ˉ$ and report the first observ…

hep-ex2012

First observation of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$

M. Ablikim, M. N. Achasov, D. J. Ambrose +356

Using a sample of 106 million ψ(3686) events collected with the BESIII detector at the BEPCII storage ring, we have made the first measurement of the M1 transition between the radi…

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

First observation of the isospin violating decay J/ψ→ΛΣˉ0+c.c.

First observation of the M1 transition ψ(3686)→γηc​(2S)

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

First observation of the isospin violating decay $J / ψ \to Λ Σ ˉ^{0} + c . c .$

First observation of the M1 transition $ψ (3686) \to γ η_{c} (2 S)$