X. Y. Niu

activity

20132021

most citedCombined Measurement of the Higgs Boson Mass in

pp

Collisions at

s = 7

and 8 TeV with the ATLAS and CMS Experiments

1.4k citations · 2.6k across the 26 of their papers we have counts for

collaborators

26 papers

astro-ph.HE2021★ 44 cited

Search for gamma-ray spectral lines with the DArk Matter Particle Explorer

Francesca Alemanno, Qi An, Philipp Azzarello +143

The DArk Matter Particle Explorer (DAMPE) is well suitable for searching for monochromatic and sharp $γ$ -ray structures in the GeV $-$ TeV range thanks to its unprecedented high ener…

hep-ex2020★ 108 cited

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at $s =$ 13 TeV

CMS Collaboration

A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a dat…

hep-ex2020★ 75 cited

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at $s =$ 13 TeV

CMS Collaboration

A search for nonresonant production of Higgs boson pairs via gluon-gluon and vector boson fusion processes in final states with two bottom quarks and two photons is presented. The…

hep-ex2018★ 9 cited

Precision measurements of $σ_{B} (e^{+} e^{-} \to K_{S}^{0} K^{\pm} π^{\mp})$ at center-of-mass energies between 3.8 and 4.6 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +444

Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the $e^{+} e^{-} \to K_{S}^{0} K^{\pm} π^{\mp}$ Born cross sections at center-of-mass…

hep-ex2018★ 12 cited

Measurement of the phase between strong and electromagnetic amplitudes of $J / ψ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +442

Using 16 energy points of $e^{+} e^{-}$ annihilation data collected in the vicinity of the $J / ψ$ resonance with the BESIII detector and with a total integrated luminosity of around…

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★ 37 cited

Observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ Mixing

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

We report the first observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ mixing in the decays of $J / ψ \to ϕ f_{0} (980) \to ϕ a_{0}^{0} (980) \to ϕ η π^{0}$ and $χ_{c1}\to a^{0}_{0}(980)π^{0}\to f_{0}…

hep-ex2017★ 31 cited

Measurement of the absolute branching fraction of $D_{s 0}^{*\pm} (2317) \to π^{0} D_{s}^{\pm}$

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

The process $e^{+} e^{-} \to D_{s}^{*+} D_{s 0}^{*-} (2317) + c . c .$ is observed for the first time with the data sample of 567~pb $^{- 1}$ collected with the BESIII detector operating at the…

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★ 28 cited

Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton-proton collisions at 13 TeV

CMS Collaboration

A search is presented for narrow heavy resonances decaying to a top quark and a bottom quark using data collected by the CMS experiment at sqrt(s) = 13 TeV in 2016. The data set an…

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★ 9 cited

Evidence for $e^{+} e^{-} \to γ η_{c} (1 S)$ at center-of-mass energies between 4.01 and 4.60 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +439

We present first evidence for the process $e^{+} e^{-} \to γ η_{c} (1 S)$ at six center-of-mass energies between 4.01 and 4.60~GeV using data collected by the BESIII experiment operating at B…

hep-ex2017★ 60 cited

Study of $J / ψ$ and $ψ (3686)$ decay to $Λ Λ ˉ$ and $Σ^{0} Σ ˉ^{0}$ final states

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

Using $1310.6 \times 1 0^{6}$ $J / ψ$ and $447.9 \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider, the branching fractions and the angula…

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★ 58 cited

Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV

CMS Collaboration

A search for new particles has been conducted using events with two high transverse momentum (pt) tau leptons that decay hadronically, at least two high-pt jets, and missing transv…

hep-ex2016★ 182 cited

Searches for invisible decays of the Higgs boson in pp collisions at sqrt(s) = 7, 8, and 13 TeV

CMS Collaboration

Searches for invisible decays of the Higgs boson are presented. The data collected with the CMS detector at the LHC correspond to integrated luminosities of 5.1, 19.7, and 2.3 inve…

hep-ex2016★ 11 cited

Search for high-mass Z-gamma resonances in e+e-gamma and mu+mu-gamma final states in proton-proton collisions at sqrt(s) = 8 and 13 TeV

CMS Collaboration

This paper describes the search for a high-mass narrow-width scalar particle decaying into a Z boson and a photon. The analysis is performed using proton-proton collision data reco…

hep-ex2016★ 110 cited

Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search

CMS Collaboration

A search for the resonant production of high-mass photon pairs is presented. The search focuses on spin-0 and spin-2 resonances with masses between 0.5 and 4.5 TeV, and with a widt…

hep-ex2016★ 9 cited

Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at sqrt(s) = 7 and 8 TeV

CMS Collaboration

Measurements are reported of the normalized differential cross sections for top quark pair production with respect to four kinematic event variables: the missing transverse energy;…

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★ 253 cited

Measurement of the $e^{+} e^{-} \to π^{+} π^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation

M. Ablikim, M. N. Achasov, X. C. Ai +398

We extract the $e^{+} e^{-} \to π^{+} π^{-}$ cross section in the energy range between 600 and 900 MeV, exploiting the method of initial state radiation. A data set with an integrated…

Search for gamma-ray spectral lines with the DArk Matter Particle Explorer

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at s​= 13 TeV

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at s​= 13 TeV

Precision measurements of σB​(e+e−→KS0​K±π∓) at center-of-mass energies between 3.8 and 4.6 GeV

Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays

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

Observation of a00​(980)-f0​(980) Mixing

Measurement of the absolute branching fraction of Ds0∗±​(2317)→π0Ds±​

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

Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton-proton collisions at 13 TeV

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

Evidence for e+e−→γηc​(1S) at center-of-mass energies between 4.01 and 4.60 GeV

Study of J/ψ and ψ(3686) decay to ΛΛˉ and Σ0Σˉ0 final states

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

Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV

Searches for invisible decays of the Higgs boson in pp collisions at sqrt(s) = 7, 8, and 13 TeV

Search for high-mass Z-gamma resonances in e+e-gamma and mu+mu-gamma final states in proton-proton collisions at sqrt(s) = 8 and 13 TeV

Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search

Measurement of the differential cross sections for top quark pair production as a function of kinematic event variables in pp collisions at sqrt(s) = 7 and 8 TeV

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

Measurement of the e+e−→π+π− Cross Section between 600 and 900 MeV Using Initial State Radiation

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at $s =$ 13 TeV

Search for nonresonant Higgs boson pair production in final states with two bottom quarks and two photons in proton-proton collisions at $s =$ 13 TeV

Precision measurements of $σ_{B} (e^{+} e^{-} \to K_{S}^{0} K^{\pm} π^{\mp})$ at center-of-mass energies between 3.8 and 4.6 GeV

Measurement of the phase between strong and electromagnetic amplitudes of $J / ψ$ decays

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

Observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ Mixing

Measurement of the absolute branching fraction of $D_{s 0}^{*\pm} (2317) \to π^{0} D_{s}^{\pm}$

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

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

Evidence for $e^{+} e^{-} \to γ η_{c} (1 S)$ at center-of-mass energies between 4.01 and 4.60 GeV

Study of $J / ψ$ and $ψ (3686)$ decay to $Λ Λ ˉ$ and $Σ^{0} Σ ˉ^{0}$ final states

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

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

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

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

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

Measurement of the $e^{+} e^{-} \to π^{+} π^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation