X. Lyu

activity

20142026

b

-hadron,

c

-hadron, and

τ

-lepton properties as of summer 2016

1.4k citations · 13.2k across the 329 of their papers we have counts for

collaborators

333 papers

hep-ex2026

First Measurement of the Absolute Branching Fraction of $η_{c} \to γ γ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +691

We apply a tag-and-probe method to precisely measure the absolute branching fraction of the decay $η_{c} \to γ γ$ with the BESIII experiment at BEPCII. Starting with a large initial s…

hep-ex2025★ 1 cited

Study of the Magnetic Dipole Transition of $J / ψ \to γ η_{c}$ via $η_{c} \to p p ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +692

Using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector at the $e^{+} e^{-}$ BEPCII collider, we present the first amplitude analysis of $J / ψ \to γ p p ˉ$ wit…

hep-ph2025

Could an axion-like particle be hidden in $η_{c} \to γ γ$ ?

Zhi-Jun Li, Zheng-Yun You, Xiao-Rui Lyu

We discuss the possibility of an axion-like particle being merged in the recent observation of $η_{c} \to γ γ$ at BESIII and find that it cannot be excluded in the current experimenta…

hep-ex2025

CP violation studies at Super Tau-Charm Facility

Hai-Yang Cheng, Zhi-Hui Guo, Xiao-Gang He +16

Charge-parity ( $C P$ ) violation in the tau-charm energy region is a promising area for sensitive tests of Standard Model (SM) predictions and searches for new, beyond the SM physi…

hep-ex2024

Observation of the singly Cabibbo suppressed decay $D^{0} \to b_{1} (1235)^{-} e^{+} ν_{e}$ and evidence for $D^{+} \to b_{1} (1235)^{0} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +657

By analyzing a data sample of $e^{+} e^{-}$ collisions with center-of-mass energy $s = 3.773$ ~GeV, corresponding to an integrated luminosity of $7.9 fb^{- 1}$ collected with t…

hep-ex2022★ 4 cited

Measurement of the absolute branching fraction of the inclusive decay $D_{s}^{+} \to π^{+} π^{+} π^{-} X$

BESIII Collaboration, M. Ablikim, M. N. Achasov +579

Using an $e^{+} e^{-}$ collision data sample with a total integrated luminosity of $3.19$ fb $^{- 1}$ collected with the BESIII detector at a center-of-mass energy of 4.178 GeV, the bran…

First Measurement of the Absolute Branching Fraction of ηc​→γγ

Study of the Magnetic Dipole Transition of J/ψ→γηc​ via ηc​→ppˉ​

Could an axion-like particle be hidden in ηc​→γγ?