T. T. Lei

collaborators

5 papers

hep-ex2024

Observation of $D \to a_{0} (980) π$ in the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We report the first amplitude analysis of the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$ using a data sample taken with the BESIII detector at the center-…

hep-ex2024

Evidence of the $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +644

Based on $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected by the BESIII collaboration, evidence of the hadronic decay $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ is found with a significance o…

hep-ex2024

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +628

With a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events accumulated with the BESIII detector, we analyze the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-} (l = e,$ $μ)$ via the process $J/ψ\righ…

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-ex2023

Study of $e^{+} e^{-} \to η ϕ$ at center-of-mass energies from 3.773 to 4.600 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +610

We present a study of the process $e^{+} e^{-} \to η ϕ$ using data samples collected with the BESIII detector corresponding to an integrated luminosity of 15.03 fb $^{- 1}$ at 23 center-…

Observation of D→a0​(980)π in the decays D0→π+π−η and D+→π+π0η

Evidence of the hc​→KS0​K+π−+c.c. decay

Measurement of the Electromagnetic Transition Form-factors in the decays η′→π+π−l+l−

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

Study of e+e−→ηϕ at center-of-mass energies from 3.773 to 4.600 GeV

Observation of $D \to a_{0} (980) π$ in the decays $D^{0} \to π^{+} π^{-} η$ and $D^{+} \to π^{+} π^{0} η$

Evidence of the $h_{c} \to K_{S}^{0} K^{+} π^{-} + c . c .$ decay

Measurement of the Electromagnetic Transition Form-factors in the decays $η^{'} \to π^{+} π^{-} l^{+} l^{-}$

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

Study of $e^{+} e^{-} \to η ϕ$ at center-of-mass energies from 3.773 to 4.600 GeV