X. Fang

activity

20092021

e^{+} e^{-} \to π^{+} π^{-} J / ψ

cross section at center-of-mass energies from 3.77 to 4.60 GeV

264 citations · 3.4k across the 70 of their papers we have counts for

collaborators

70 papers

astro-ph.SR2021★ 6 cited

Catching a grown-up starfish planetary nebula II. Plasma analysis and central star properties of PC 22

L. Sabin, V. Gómez-Llanos, C. Morisset +4

After performing the morpho-kinematic analysis of the planetary nebula (PN) PC 22, we now present its nebular and stellar analysis. The plasma investigation relies on the novel use…

hep-ex2018★ 18 cited

Study of $η (1475)$ and $X (1835)$ in radiative $J / ψ$ decays to $γ ϕ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +428

The decay $J / ψ \to γ γ ϕ$ is studied using a sample of $1.31 \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector. Two structures around 1475 MeV/c $^{2}$ and 1835 MeV/c…

hep-ex2017★ 46 cited

Precision Study of $η^{'} \to γ π^{+} π^{-}$ Decay Dynamics

BESIII Collaboration, M. Ablikim, M. N. Achasov +431

Using a low background data sample of $9.7 \times 1 0^{5}$ $J ψ \to γ η^{'}$ , $η^{'} \to γ π^{+} π^{-}$ events, which are 2 orders of magnitude larger than those from the pr…

hep-ex2017★ 20 cited

Measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ at $s$ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

M. Ablikim, M. N. Achasov, S. Ahmed +436

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 $f b^{- 1}$ at center-of-mass energies ($…

hep-ex2017★ 88 cited

Observation of a cross-section enhancement near mass threshold in $e^{+} e^{-} \to Λ Λ ˉ$

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

The process $e^{+} e^{-} \to Λ Λ ˉ$ is studied using data samples at $s = 2.2324$ , 2.400, 2.800 and 3.080 GeV collected with the BESIII detector operating at the BEPCII…

hep-ex2017★ 20 cited

Observation of the decay $Λ_{c}^{+} \to Σ^{-} π^{+} π^{+} π^{0}$

BESIII Collaboration, M Ablikim, M N Achasov +428

We report the first observation of the decay $Λ_{c}^{+} \to Σ^{-} π^{+} π^{+} π^{0}$ , based on data obtained in $e^{+} e^{-}$ annihilations with an integrated luminosity of 567~pb $^{- 1}$ at…

hep-ex2017★ 13 cited

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $s = 2.125$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +322

To study the nature of the state $Y (2175)$ , a dedicated data set of $e^{+} e^{-}$ collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the…

hep-ex2017★ 16 cited

Observation of $e^{+} e^{-} \to η h_{c}$ at center-of-mass energies from 4.085 to 4.600 GeV

BESIII collaboration, M. Ablikim, M. N. Achasov +425

We observe for the first time the process $e^{+} e^{-} \to η h_{c}$ with data collected by the BESIII experiment. Significant signals are observed at the center-of-mass energy…

hep-ex2017★ 54 cited

Analysis of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^{+} \to π^{0} e^{+} ν_{e}$ Semileptonic Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +428

Using 2.93~fb $^{- 1}$ of data taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we study the semileptonic decays $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^+ \to π^0…

hep-ex2017★ 105 cited

Measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ from 4.008 to 4.600 $\sim$ GeV and observation of a charged structure in the $π^{\pm} ψ (3686)$ mass spectrum

M. Ablikim, M. N. Achasov, S. Ahmed +424

We study the process $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ using 5.1 $f b^{- 1}$ of data collected at 16 center-of-mass energy ( $s$ ) points from 4.008 to 4.600 $\sim$ GeV b…

hep-ex2017★ 7 cited

Branching fraction measurements of $ψ (3686) \to γ χ_{c J}$

BESIII collaboration, M. Ablikim, M. N. Achasov +428

Using a sample of 106 million $ψ (3686)$ decays, the branching fractions of $ψ (3686) \to γ χ_{c 0}, ψ (3686) \to γ χ_{c 1}$ , and $ψ (3686) \to γ χ_{c 2}$ are measured with improved precisio…

hep-ex2017★ 15 cited

Search for the Radiative Leptonic Decay $D^{+} \to γ e^{+} ν_{e}$

The BESIII Collaboration, M. Ablikim, M. N. Achasov +428

Using an electron-positron collision data sample of 2.93 fb $^{- 1}$ collected at a center-of-mass energy of $s = 3.773$ GeV with the BESIII detector, we present the first searc…

hep-ex2017★ 58 cited

Luminosity measurements for the R scan experiment at BESIII

M. Ablikim, M. N. Achasov, S. Ahmed +423

By analyzing the large-angle Bhabha scattering events $e^{+} e^{-}$ $\to$ ( $γ$ ) $e^{+} e^{-}$ and diphoton events $e^{+} e^{-}$ $\to$ $γ γ$ for the data sets collected at center-of-mass…

hep-ex2017★ 34 cited

Evidence for the singly-Cabibbo-suppressed decay $Λ_{c}^{+} \to p η$ and search for $Λ_{c}^{+} \to p π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +421

We study the singly-Cabibbo-suppressed decays $Λ_{c}^{+} \to p η$ and $Λ_{c}^{+} \to p π^{0}$ using $Λ_{c}^{+} Λ_{c}^{+}$ pairs produced by $e^{+} e^{-}$ collisions at a center-of-mass energy…

hep-ex2017★ 20 cited

Cross section measurements of $e^{+} e^{-} \to p p ˉ π^{0}$ at center-of-mass energies between 4.008 and 4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +429

Based on $e^{+} e^{-}$ annihilation data samples collected with the BESIII detector at the BEPCII collider at 13 center of mass energies from 4.008 to 4.600 GeV, measurements of the Bor…

hep-ex2017★ 13 cited

Measurement of higher-order multipole amplitudes in $ψ (3686) \to γ χ_{c 1, 2}$ with $χ_{c 1, 2} \to γ J / ψ$ and search for the transition $η_{c} (2 S) \to γ J / ψ$

M. Ablikim, M. N. Achasov, X. C. Ai +424

Using 106~million $ψ (3686)$ events collected with the BESIII detector, we measure multipole amplitudes for the decay $ψ (3686) \to γ χ_{c 1, 2} \to γ γ J / ψ$ beyond the dominant elect…

hep-ex2016★ 53 cited

Study of $J / ψ$ and $ψ (3686) \to Σ (1385)^{0} Σ ˉ (1385)^{0}$ and $Ξ^{0} Ξ ˉ^{0}$

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

We study the decays of $J / ψ$ and $ψ (3686)$ to the final states $Σ (1385)^{0} Σ ˉ (1385)^{0}$ and $Ξ^{0} Ξ ˉ^{0}$ based on a single baryon tag method using data samples of $(1310.6 \p…

hep-ex2016★ 4 cited

Observation of the helicity-selection-rule suppressed decay of the $χ_{c 2}$ charmonium state

BESIII Collaboration, M. Ablikim, M. N. Achasov +424

The decays of $χ_{c 2} \to K^{+} K^{-} π^{0}$ , $K_{S} K^{\pm} π^{\mp}$ and $π^{+} π^{-} π^{0}$ are studied with the $ψ (3686)$ data samples collected with the Beijing Spectrometer (BESIII)…

hep-ex2016★ 62 cited

Measurement of the Absolute Branching Fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

We report the first measurement of the absolute branching fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$ . This measurement is based on a sample of $e^{+} e^{-}$ annihilation data at a center…

hep-ex2016★ 39 cited

Observation of $Λ_{c}^{+} \to n K_{S}^{0} π^{+}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

We report the first direct measurement of decays of the $Λ_{c}^{+}$ baryon involving the neutron. The analysis is performed using 567 pb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at…

hep-ex2016★ 264 cited

Precise measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section at center-of-mass energies from 3.77 to 4.60 GeV

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

The cross section for the process $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ is measured precisely at center-of-mass energies from 3.77 to 4.60~GeV using 9~fb $^{- 1}$ of data collected with the BESIII d…

astro-ph.GA2016★ 15 cited

MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay

E. Giannini, R. W. Schmidt, J. Wambsganß +52

We present V and R photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope…

hep-ex2016★ 189 cited

Evidence of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} h_{c}$

M. Ablikim, M. N. Achasov, S. Ahmed +424

The cross sections of $e^{+} e^{-} \to π^{+} π^{-} h_{c}$ at center-of-mass energies from 3.896 to 4.600 GeV are measured using data samples collected with the BESIII detector operating a…

hep-ex2016★ 13 cited

Observation of $J / ψ \to γ η π^{0}$

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

We present the first study of the process $J / ψ \to γ η π^{0}$ using $(223.7 \pm 1.4) \times 1 0^{6}$ $J / ψ$ events accumulated with the BESIII detector at the BEPCII facility. The b…

Catching a grown-up starfish planetary nebula II. Plasma analysis and central star properties of PC 22

Study of η(1475) and X(1835) in radiative J/ψ decays to γϕ

Precision Study of η′→γπ+π− Decay Dynamics

Measurement of e+e−→π0π0ψ(3686) at s​ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

Observation of a cross-section enhancement near mass threshold in e+e−→ΛΛˉ

Observation of the decay Λc+​→Σ−π+π+π0

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at s​=2.125 GeV

Observation of e+e−→ηhc​ at center-of-mass energies from 4.085 to 4.600 GeV

Analysis of D+→Kˉ0e+νe​ and D+→π0e+νe​ Semileptonic Decays

Measurement of e+e−→π+π−ψ(3686) from 4.008 to 4.600∼GeV and observation of a charged structure in the π±ψ(3686) mass spectrum

Branching fraction measurements of ψ(3686)→γχcJ​

Search for the Radiative Leptonic Decay D+→γe+νe​

Luminosity measurements for the R scan experiment at BESIII

Evidence for the singly-Cabibbo-suppressed decay Λc+​→pη and search for Λc+​→pπ0

Cross section measurements of e+e−→ppˉ​π0 at center-of-mass energies between 4.008 and 4.600 GeV

Measurement of higher-order multipole amplitudes in ψ(3686)→γχc1,2​ with χc1,2​→γJ/ψ and search for the transition ηc​(2S)→γJ/ψ

Study of J/ψ and ψ(3686)→Σ(1385)0Σˉ(1385)0 and Ξ0Ξˉ0

Observation of the helicity-selection-rule suppressed decay of the χc2​ charmonium state

Measurement of the Absolute Branching Fraction for Λc+​→Λμ+νμ​

Observation of Λc+​→nKS0​π+

Precise measurement of the e+e−→π+π−J/ψ cross section at center-of-mass energies from 3.77 to 4.60 GeV

MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay

Evidence of Two Resonant Structures in e+e−→π+π−hc​

Observation of J/ψ→γηπ0

Study of $η (1475)$ and $X (1835)$ in radiative $J / ψ$ decays to $γ ϕ$

Precision Study of $η^{'} \to γ π^{+} π^{-}$ Decay Dynamics

Measurement of $e^{+} e^{-} \to π^{0} π^{0} ψ (3686)$ at $s$ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

Observation of a cross-section enhancement near mass threshold in $e^{+} e^{-} \to Λ Λ ˉ$

Observation of the decay $Λ_{c}^{+} \to Σ^{-} π^{+} π^{+} π^{0}$

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $s = 2.125$ GeV

Observation of $e^{+} e^{-} \to η h_{c}$ at center-of-mass energies from 4.085 to 4.600 GeV

Analysis of $D^{+} \to K ˉ^{0} e^{+} ν_{e}$ and $D^{+} \to π^{0} e^{+} ν_{e}$ Semileptonic Decays

Measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (3686)$ from 4.008 to 4.600 $\sim$ GeV and observation of a charged structure in the $π^{\pm} ψ (3686)$ mass spectrum

Branching fraction measurements of $ψ (3686) \to γ χ_{c J}$

Search for the Radiative Leptonic Decay $D^{+} \to γ e^{+} ν_{e}$

Evidence for the singly-Cabibbo-suppressed decay $Λ_{c}^{+} \to p η$ and search for $Λ_{c}^{+} \to p π^{0}$

Cross section measurements of $e^{+} e^{-} \to p p ˉ π^{0}$ at center-of-mass energies between 4.008 and 4.600 GeV

Measurement of higher-order multipole amplitudes in $ψ (3686) \to γ χ_{c 1, 2}$ with $χ_{c 1, 2} \to γ J / ψ$ and search for the transition $η_{c} (2 S) \to γ J / ψ$

Study of $J / ψ$ and $ψ (3686) \to Σ (1385)^{0} Σ ˉ (1385)^{0}$ and $Ξ^{0} Ξ ˉ^{0}$

Observation of the helicity-selection-rule suppressed decay of the $χ_{c 2}$ charmonium state

Measurement of the Absolute Branching Fraction for $Λ_{c}^{+} \to Λ μ^{+} ν_{μ}$

Observation of $Λ_{c}^{+} \to n K_{S}^{0} π^{+}$

Precise measurement of the $e^{+} e^{-} \to π^{+} π^{-} J / ψ$ cross section at center-of-mass energies from 3.77 to 4.60 GeV

Evidence of Two Resonant Structures in $e^{+} e^{-} \to π^{+} π^{-} h_{c}$

Observation of $J / ψ \to γ η π^{0}$