Q. W. Zhao

activity

20132017

most citedMeasurement of the absolute branching fraction for

Λ_{c}^{+} \to Λ e^{+} ν_{e}

89 citations · 476 across the 14 of their papers we have counts for

collaborators

14 papers

hep-ex2017★ 85 cited

Determination of the number of $ψ (3686)$ events at BESIII

M. Ablikim, M. N. Achasov, S. Ahmed +430

The numbers of $ψ (3686)$ events accumulated by the BESIII detector for the two rounds of data taking during 2009 and 2012 are determined to be $(107.0 \pm 0.8) \times 1 0^{6}$ and $(341.…

hep-ex2017★ 16 cited

Observation of $ψ (3686) \to e^{+} e^{-} χ_{c J}$ and $χ_{c J} \to e^{+} e^{-} J / ψ$

M. Ablikim, M. N. Achasov, X. C. Ai +420

Using $4.479 \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector, we search for the decays $ψ (3686) \to e^{+} e^{-} χ_{c 0, 1, 2}$ and $χ_{c0,1,2} \rightarrow e^{…

hep-ex2016★ 7 cited

Measurements of the branching fractions for $D^{+} \to K_{S}^{0} K_{S}^{0} K^{+}$ , $K_{S}^{0} K_{S}^{0} π^{+}$ and $D^{0} \to K_{S}^{0} K_{S}^{0}$ , $K_{S}^{0} K_{S}^{0} K_{S}^{0}$

M. Ablikim, M. N. Achasov, S. Ahmed +428

By analyzing $2.93 f b^{- 1}$ of data taken at the $ψ (3770)$ resonance peak with the BESIII detector, we measure the branching fractions for the hadronic decays $D^+\to K^0_SK^0…

hep-ex2016★ 18 cited

Observation of the doubly radiative decay $η^{'} \to γ γ π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +426

Based on a sample of $1.31$ billion $J / ψ$ events collected with the BESIII detector, we report the study of the doubly radiative decay $η^{'} \to γ γ π^{0}$ for the first time, where…

hep-ex2016★ 4 cited

Improved measurements of branching fractions for $η_{c} \to ϕϕ$ and $ω ϕ$

M. Ablikim, M. N. Achasov, X. C. Ai +419

Using $(223.7 \pm 1.4) \times 1 0^{6}$ J/ $ψ$ events accumulated with the BESIII detector, we study $η_{c}$ decays to $ϕϕ$ and $ω ϕ$ final states. The branching fraction of $η_{c} \to ϕϕ$ is meas…

hep-ex2016★ 56 cited

Amplitude analysis of the $χ_{c 1} \to η π^{+} π^{-}$ decays

M. Ablikim, M. N. Achasov, S. Ahmed +430

Using $448.0 \times 1 0^{6}$ ~ $ψ (3686)$ events collected with the BESIII detector, an amplitude analysis is performed for $ψ (3686) \to γ χ_{c 1}$ , $χ_{c 1} \to η π^{+} π^{-}$ decays. The most domin…

hep-ex2016★ 18 cited

Measurements of the absolute branching fractions for $D_{s}^{+} \to η e^{+} ν_{e}$ and $D_{s}^{+} \to η^{'} e^{+} ν_{e}$

M. Ablikim, M. N. Achasov, X. C. Ai +412

By analyzing 482 pb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at $s = 4.009$ GeV with the BESIII detector at the BEPCII collider, we measure the absolute branching fractions…

hep-ex2015★ 89 cited

Measurement of the absolute branching fraction for $Λ_{c}^{+} \to Λ e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +65

We report the first absolute measurement of the branching fraction of $Λ_{c}^{+} \to Λ e^{+} ν_{e}$ . This measurement is based on 567 pb $^{- 1}$ of $e^{+} e^{-}$ annihilation data produce…

hep-ex2015★ 80 cited

Observation of a Neutral Structure near the $D D ˉ^{}$ Mass Threshold in $e^{+} e^{-} \to (D D ˉ^{})^{0} π^{0}$ at $s$ = 4.226 and 4.257 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +400

A neutral structure in the $D D ˉ^{*}$ system around the $D D ˉ^{*}$ mass threshold is observed with a statistical significance greater than 10 $σ$ in the processes $e^{+}e^{-…

hep-ex2015★ 6 cited

Measurement of the branching fractions of $D_{s}^{+} \to η^{'} X$ and $D_{s}^{+} \to η^{'} ρ^{+}$ in $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +414

We study $D_{s}^{+}$ decays to final states involving the $η^{'}$ with a 482pb $^{- 1}$ data sample collected at $s$ = 4.009GeV with the \mbox{BESIII} detector at the BEP…

hep-ex2015★ 21 cited

Observation of the isospin-violating decay $J / ψ \to ϕ π^{0} f_{0} (980)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +410

Using a sample of 1.31 billion $J / ψ$ events collected with the BESIII detector at the BEPCII collider, the decays $J / ψ \to ϕ π^{+} π^{-} π^{0}$ and $J / ψ \to ϕ π^{0} π^{0} π^{0}$ are invest…

hep-ex2015★ 18 cited

Measurement of $y_{C P}$ in $D^{0} - D^{0}$ oscillation using quantum correlations in $e^{+} e^{-} \to D^{0} D^{0}$ at $s$ = 3.773\,GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +407

We report a measurement of the parameter $y_{C P}$ in $\ensuremath{D^0}\xspace-\ensuremath{\overline{D}^{0}}\xspace$ oscillations performed by taking advantage of quantum coherence…

hep-ex2014★ 44 cited

Precision Measurement of the Mass of the $τ$ Lepton

M. Ablikim, M. N. Achasov, X. C. Ai +374

An energy scan near the $τ$ pair production threshold has been performed using the BESIII detector. About $24$ pb $^{- 1}$ of data, distributed over four scan points, was collected.…

hep-ex2013★ 14 cited

Search for the $η_{c} (2 S) / h_{c} \to p p ˉ$ decays and measurements of the $χ_{c J} \to p p ˉ$ branching fractions

BESlll Collaboration, M. Ablikim, M. N. Achasov +374

Using a sample of $1.06 \times 1 0^{8} ψ (3686)$ events collected with the BESIII detector at BEPCII, the decays $η_{c} (2 S) \to p p ˉ$ and $h_{c} \to p p ˉ$ are searched for, where…

Determination of the number of ψ(3686) events at BESIII

Observation of ψ(3686)→e+e−χcJ​ and χcJ​→e+e−J/ψ

Measurements of the branching fractions for D+→KS0​KS0​K+, KS0​KS0​π+ and D0→KS0​KS0​, KS0​KS0​KS0​

Observation of the doubly radiative decay η′→γγπ0

Improved measurements of branching fractions for ηc​→ϕϕ and ωϕ

Amplitude analysis of the χc1​→ηπ+π− decays

Measurements of the absolute branching fractions for Ds+​→ηe+νe​ and Ds+​→η′e+νe​

Measurement of the absolute branching fraction for Λc+​→Λe+νe​

Observation of a Neutral Structure near the DDˉ∗ Mass Threshold in e+e−→(DDˉ∗)0π0 at s​ = 4.226 and 4.257 GeV

Measurement of the branching fractions of Ds+​→η′X and Ds+​→η′ρ+ in e+e−→Ds+​Ds−​

Observation of the isospin-violating decay J/ψ→ϕπ0f0​(980)

Measurement of yCP​ in D0−D0 oscillation using quantum correlations in e+e−→D0D0 at s​ = 3.773\,GeV

Precision Measurement of the Mass of the τ Lepton

Search for the ηc​(2S)/hc​→ppˉ​ decays and measurements of the χcJ​→ppˉ​ branching fractions