X. Chu

activity

20132026

most citedObservation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c

459 citations · 4.3k across the 87 of their papers we have counts for

collaborators

Showing hep-exShow all

85 papers · 1 filter

hep-ex2026

Proof of principle for nucleon polarization measurement at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

A novel technique for measuring the spin polarization of final-state nucleons in a general-purpose spectrometer is validated. Using $10.09 \times 1 0^{9}$ $J / ψ$ events at BESIII, the…

hep-ex2026

Observation of $D_{s}^{+} \to a_{0} (980)^{+} f_{0} (500)$ in the Amplitude Analysis of $D_{s}^{+} \to π^{+} π^{0} π^{0} η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +716

We report the first observation of the decay $D_{s}^{+} \to π^{+} π^{0} π^{0} η$ in a data set corresponding to an integrated luminosity of 7.33 fb $^{- 1}$ , collected in $e^{+} e^{-}$ collisions by t…

hep-ex2024

Measurement of the Inclusive Cross Sections of Prompt $J / ψ$ and $ψ (3686)$ Production in $e^{+} e^{-}$ Annihilation from $s = 3.808$ to $4.951$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +610

The inclusive cross sections of prompt $J / ψ$ and $ψ (3686)$ production are measured at center-of-mass energies from 3.808 to 4.951 GeV. The dataset used is 22 fb $^{- 1}$ of $e^{+}e^{…

hep-ex2024★ 3 cited

Search for the Rare Decays $D_{s}^{+} \to h^{+} (h^{0}) e^{+} e^{-}$

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

Using 7.33~fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at center-of-mass energies in the range of $s = 4.128 - 4.226$ ~GeV, we search for the rare…

hep-ex2023★ 2 cited

Search for the lepton number violation decay $ϕ \to π^{+} π^{+} e^{-} e^{-}$ via $J / ψ \to ϕ η$

BESIII Collaboration, M. Ablikim, M. N. Achasov +596

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected by the BESIII detector at the BEPCII collider, we search for the lepton number violation decay $ϕ \to π^{+} π^{+} e^{-} e^{-}$ …

hep-ex2022★ 8 cited

Measurement of the absolute branching fraction of the singly Cabibbo suppressed decay $Λ_{c}^{+} \to p η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

The singly Cabibbo suppressed decay $Λ_{c}^{+} \to p η^{'}$ is measured using 4.5 $fb^{- 1}$ of $e^{+} e^{-}$ collision data collected at center-of-mass energies between 4.60…

hep-ex2022

Measurement of the branching fraction and decay asymmetry of $Λ \to nγ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +565

The radiative hyperon decay $Λ \to nγ$ is studied using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector operating at BEPCII. The absolute branching fractio…

hep-ex2019★ 2 cited

Amplitude analysis of $D^{+} \to K_{S}^{0} π^{+} π^{+} π^{-}$

M. Ablikim, M. N. Achasov, S. Ahmed +458

The decay $D^{+} \to K_{S}^{0} π^{+} π^{+} π^{-}$ is studied with an amplitude analysis using a data set of 2.93${\mbox{\,fb}^{-1}}$ of $e^{+} e^{+}$ collisions at the $ψ (3770)$ …

hep-ex2018★ 3 cited

Measurement of the Integrated Luminosities of Cross-section Scan Data Samples Around the $ψ (3770)$ Mass Region

M. Ablikim, M. N. Achasov, S. Ahmed +460

To investigate the nature of the $ψ (3770)$ resonance and to measure the cross section for $e^{+} e^{-} \to D D ˉ$ , a cross-section scan data sample, distributed among 41 center-of-ma…

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-ex2018

Search for $h_{c} \to π^{+} π^{-} J / ψ$ via $ψ (3686) \to π^{0} π^{+} π^{-} J / ψ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +415

Using a data sample of $448.1 \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector operating at the BEPCII, we perform search for the hadronic transition $h_c\rightarrowπ…

hep-ex2017★ 12 cited

Observation of $e^{+} e^{-} \to ϕ χ_{c 1}$ and $ϕ χ_{c 2}$ at $s$ =4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +427

Using a data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $s = 4.600$ GeV, we search for the production of $e^{…

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★ 94 cited

Precision measurement of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ cross section near threshold

M. Ablikim, M. N. Achasov, S. Ahmed +445

The Born cross section of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ process is measured with unprecedented precision using data collected with the BESIII detector at $\s…

hep-ex2017★ 5 cited

Observation of $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies above 3.7 $\sim$ GeV

M. Ablikim, M. N. Achasov, S. Ahmed +426

The state $Y (2175)$ is observed in the process $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies between 3.7 and 4.6 $\sim$ GeV with a statistical significance larger than $10 σ$ usin…

hep-ex2017★ 20 cited

Measurements of the branching fractions for the semi-leptonic decays $D_{s}^{+} \to ϕ e^{+} ν_{e}$ , $ϕ μ^{+} ν_{μ}$ , $η μ^{+} ν_{μ}$ and $η^{'} μ^{+} ν_{μ}$

M. Ablikim, M. N. Achasov, S. Ahmed +439

By analyzing 482 pb $^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy $s = 4.009$ GeV with the BESIII detector, we measure the %absolute branching fracti…

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…

Proof of principle for nucleon polarization measurement at BESIII

Observation of Ds+​→a0​(980)+f0​(500) in the Amplitude Analysis of Ds+​→π+π0π0η

Measurement of the Inclusive Cross Sections of Prompt J/ψ and ψ(3686) Production in e+e− Annihilation from s​=3.808 to 4.951 GeV

Search for the Rare Decays Ds+​→h+(h0)e+e−

Search for the lepton number violation decay ϕ→π+π+e−e− via J/ψ→ϕη

Measurement of the absolute branching fraction of the singly Cabibbo suppressed decay Λc+​→pη′

Measurement of the branching fraction and decay asymmetry of Λ→nγ

Amplitude analysis of D+→KS0​π+π+π−

Measurement of the Integrated Luminosities of Cross-section Scan Data Samples Around the ψ(3770) Mass Region

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

Search for hc​→π+π−J/ψ via ψ(3686)→π0π+π−J/ψ

Observation of e+e−→ϕχc1​ and ϕχc2​ at s​=4.600 GeV

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

Precision measurement of the e+e− → Λc+​Λˉc−​ cross section near threshold

Observation of e+e−→ηY(2175) at center-of-mass energies above 3.7∼GeV

Measurements of the branching fractions for the semi-leptonic decays Ds+​→ϕe+νe​, ϕμ+νμ​, ημ+νμ​ and η′μ+νμ​

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​