X. Lou

activity

20202026

most citedMeasurement of the Born cross sections for

e^{+} e^{-} \to η^{'} π^{+} π^{-}

at center-of-mass energies between

2.00

and

3.08

GeV

26 citations · 79 across the 42 of their papers we have counts for

collaborators

Showing 2025Show all

22 papers · 1 filter

hep-ex2025

First measurement of the absolute branching fractions of $Σ^{+}$ nonleptonic decays and test of the $Δ I = 1/2$ rule

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected by the BESIII detector at the center-of-mass energy $s = 3.097$ GeV, the first absolute measurement of the branc…

hep-ex2025★ 2 cited

Search for a hypothetical gauge boson and dark photons in charmonium transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

We report a direct search for a new gauge boson, $X$ , with a mass of $17 MeV / c^{2}$ , which could explain the anomalous excess of $e^{+} e^{-}$ pairs observed in the $^{8} Be$ n…

hep-ex2025

First measurements of the branching fractions of $J / ψ \to Ξ^{0} Λ ˉ K_{S}^{0} + c . c .$ , $J / ψ \to Ξ^{0} Σ ˉ^{0} K_{S}^{0} + c . c .$ , and $J / ψ \to Ξ^{0} Σ ˉ^{-} K^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +686

By analyzing $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at the BEPCII, the decays $J / ψ \to Ξ^{0} Λ ˉ K_{S}^{0} + c . c .$ , $J / ψ \to Ξ^{0} Σ ˉ^{0} K_{S}^{0} + c . c .$ , and $…

hep-ex2025★ 1 cited

Observation of a threshold enhancement in the $π^{+} π^{-}$ spectrum in $ψ (3686) \to π^{+} π^{-} J / ψ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

Based on the $(2712.4 \pm 14.4) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, we present a high-precision study of the $π^{+} π^{-}$ mass spectrum in $ψ(3686)\rightar…

hep-ex2025

Measurement of the branching fraction of $\psip \to ωηη$

BESIII Collaboration, M. Ablikim, M. N. Achasov +698

Using a sample of (2.712 $\pm$ 0.014) $\times 1 0^{9}$ $\psip$ events collected with the BESIII detector at the BEPCII collider in 2009, 2012, and 2021, the decay $\psip \to ωηη$ is…

hep-ex2025

Study of the $χ_{c J} \to Λ Λ ˉ η^{'}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

Using a data sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we investigate the decays $χ_{cJ} \rightarrow Λ\bar…

hep-ex2025

Search for $χ_{c 1} \to π^{+} π^{-} η_{c}$ via $ψ (3686) \to γ χ_{c 1}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Utilizing $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we search for the hadronic transition process $χ_{c1} \to π^+π…

hep-ex2025

Search for a bound state of $Λ_{c} Σ ˉ_{c}$ near threshold

BESIII Collaboration, M. Ablikim, M. N. Achasov +698

We search for a possible $Λ_{c} Σ ˉ_{c}$ bound state, denoted as $H_{c}^{\pm}$ , via the $e^{+} e^{-} \to π^{+} π^{-} Λ_{c}^{+} Λ ˉ_{c}^{-}$ process for the first time. This an…

hep-ex2025★ 2 cited

Measurement of the branching fractions of the Cabibbo-favored decays $Λ_{c}^{+} \to Λ K_{S}^{0} K^{+}$ and $Λ_{c}^{+} \to Ξ^{0} K_{S}^{0} π^{+}$ and search for $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +664

Based on $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of about 4.5 fb $^{- 1}$ collected at center-of-mass energies between 4599.53 MeV and 4698.82 MeV with…

hep-ex2025

Observation of the electromagnetic radiative decays of the \boldmath{ $Λ (1520)$ } and \boldmath{ $Λ (1670)$ } to \boldmath{ $γ Σ^{0}$ }

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we report the first observation of the electromagnetic radiative decays of the $Λ (1520)$ and $Λ(167…

hep-ex2025

Search for the lepton number violating process $J / ψ \to K^{+} K^{+} e^{-} e^{-} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we search for the lepton number violating decay $J / ψ \to K^{+} K^{+} e^{-} e^{-} + c . c .$ for the first tim…

hep-ex2025

Search for the charged lepton flavor violating decay $ψ (3686) \to e^{\pm} μ^{\mp}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +695

By analyzing $(2367.0 \pm 11.1) \times 1 0^{6}$ $ψ (3686)$ events collected in $e^{+} e^{-}$ collisions at $s = 3.686 GeV$ with the BESIII detector at the BEPCII collider, we report th…

hep-ex2025

Measurement of the $Λ$ Electric Dipole Moment with an Entangled Baryon-Antibaryon System

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

The dominance of matter over antimatter in the universe has consistently driven the pursuit of new physics beyond the Standard Model that violates charge-parity symmetry. Strange b…

hep-ex2025

Measurements of the absolute branching fractions of the doubly Cabibbo-suppressed decays $D^{+} \to K^{+} π^{0}$ , $D^{+} \to K^{+} η$ and $D^{+} \to K^{+} η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using $20.3 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773\,GeV with the BESIII detector, we present the measurements of the absolute branch…

hep-ex2025★ 1 cited

Search for the charmonium weak decays $J / ψ \to D_{s}^{-} ρ^{+} + c . c .$ and $J / ψ \to D_{s}^{-} π^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +700

Based on $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events recorded with the BESIII detector, we search for the rare charmonium weak decays $J / ψ \to D_{s}^{-} ρ^{+} + c . c .$ and $J/ψ\to D_{s}^{-}π…

hep-ex2025★ 2 cited

First measurement of $Σ^{+} n \to Λ p$ and $Σ^{+} n \to Σ^{0} p$ cross sections via $Σ^{+}$ -nucleus scattering at an electron-positron collider

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

Using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / ψ$ events collected with the BESIII detector at the BEPCII storage ring, the reactions $Σ^{+} n \to Λ p$ and $Σ^{+} n \to Σ^{0} p$ …

hep-ex2025

Search for $1^{-+}$ charmonium-like hybrid via $e^{+} e^{-} \to γ η^{(')} η_{c}$ at center-of-mass energies between 4.258 and 4.681 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 10.6 fb $^{- 1}$ collected at center-of-mass energies between 4.258 and 4.681 GeV with the BESIII detec…

hep-ex2025★ 1 cited

Search for $J / ψ \to K_{S}^{0} K_{S}^{0}$ and $ψ (3686) \to K_{S}^{0} K_{S}^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

Using data samples of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events and $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector at the BEPCII collider, we sea…

hep-ex2025★ 2 cited

Search for the FCNC charmonium decay $J / ψ \to D^{0} μ^{+} μ^{-} + c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

Based on a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events taken with the BESIII detector, we search for the flavor-changing neutral current charmonium decay $J/ψ\to D^{0}…

hep-ex2025

Cross section measurement of $e^{+} e^{-} \to f_{1} (1285) π^{+} π^{-}$ at center-of-mass energies between $3.808$ and $4.951 GeV$

BESIII Collaboration, M. Ablikim, M. N. Achasov +644

Using data samples collected by the \mbox{BESIII} detector located at the Beijing Electron Positron Collider, the cross sections of the process $e^{+} e^{-} \to f_{1} (1285) π^{+} π^{-}$ are me…

hep-ex2025

Search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ and measurement of $χ_{c J} \to p p ˉ K^{+} K^{-}$ in $ψ (3686)$ radiative decays

M. Ablikim, M. N. Achasov, P. Adlarson +647

A search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ , together with measurement of branching fractions of $χ_{c J (J = 0, 1, 2)} \to p p ˉ K^{+} K^{-}$ in the $ψ (3686) \to γ η_{c} (2 S)$ and the $ψ(3686) \to…

hep-ex2025

Observation of Charmonium $h_{c}$ Radiative Decays to Multiple Light Hadrons and the Tensor State $f_{2} (1270)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +668

Using $ψ (3686) \to π^{0} h_{c}$ decays from a data sample of $(27.12 \pm 0.14) \times 1 0^{8}$ $ψ (3686)$ events collected by the BESIII detector at the BEPCII collider, $h_{c}$ rad…

First measurement of the absolute branching fractions of Σ+ nonleptonic decays and test of the ΔI=1/2 rule

Search for a hypothetical gauge boson and dark photons in charmonium transitions

First measurements of the branching fractions of J/ψ→Ξ0ΛˉKS0​+c.c., J/ψ→Ξ0Σˉ0KS0​+c.c., and J/ψ→Ξ0Σˉ−K++c.c.

Observation of a threshold enhancement in the π+π− spectrum in ψ(3686)→π+π−J/ψ decays

Measurement of the branching fraction of $\psip \to ωηη$

Study of the χcJ​→ΛΛˉη′ decays

Search for χc1​→π+π−ηc​ via ψ(3686)→γχc1​

Search for a bound state of Λc​Σˉc​ near threshold

Measurement of the branching fractions of the Cabibbo-favored decays Λc+​→ΛKS0​K+ and Λc+​→Ξ0KS0​π+ and search for Λc+​→Σ0KS0​K+

Observation of the electromagnetic radiative decays of the \boldmath{Λ(1520)} and \boldmath{Λ(1670)} to \boldmath{γΣ0}

Search for the lepton number violating process J/ψ→K+K+e−e−+c.c.

Search for the charged lepton flavor violating decay ψ(3686)→e±μ∓

Measurement of the Λ Electric Dipole Moment with an Entangled Baryon-Antibaryon System

Measurements of the absolute branching fractions of the doubly Cabibbo-suppressed decays D+→K+π0, D+→K+η and D+→K+η′

Search for the charmonium weak decays J/ψ→Ds−​ρ++c.c. and J/ψ→Ds−​π++c.c.

First measurement of Σ+n→Λp and Σ+n→Σ0p cross sections via Σ+-nucleus scattering at an electron-positron collider

Search for 1−+ charmonium-like hybrid via e+e−→γη(′)ηc​ at center-of-mass energies between 4.258 and 4.681 GeV

Search for J/ψ→KS0​KS0​ and ψ(3686)→KS0​KS0​

Search for the FCNC charmonium decay J/ψ→D0μ+μ−+c.c.

Cross section measurement of e+e−→f1​(1285)π+π− at center-of-mass energies between 3.808 and 4.951GeV

Search for ηc​(2S)→ppˉ​K+K− and measurement of χcJ​→ppˉ​K+K− in ψ(3686) radiative decays

Observation of Charmonium hc​ Radiative Decays to Multiple Light Hadrons and the Tensor State f2​(1270)

First measurement of the absolute branching fractions of $Σ^{+}$ nonleptonic decays and test of the $Δ I = 1/2$ rule

First measurements of the branching fractions of $J / ψ \to Ξ^{0} Λ ˉ K_{S}^{0} + c . c .$ , $J / ψ \to Ξ^{0} Σ ˉ^{0} K_{S}^{0} + c . c .$ , and $J / ψ \to Ξ^{0} Σ ˉ^{-} K^{+} + c . c .$

Observation of a threshold enhancement in the $π^{+} π^{-}$ spectrum in $ψ (3686) \to π^{+} π^{-} J / ψ$ decays

Study of the $χ_{c J} \to Λ Λ ˉ η^{'}$ decays

Search for $χ_{c 1} \to π^{+} π^{-} η_{c}$ via $ψ (3686) \to γ χ_{c 1}$

Search for a bound state of $Λ_{c} Σ ˉ_{c}$ near threshold

Measurement of the branching fractions of the Cabibbo-favored decays $Λ_{c}^{+} \to Λ K_{S}^{0} K^{+}$ and $Λ_{c}^{+} \to Ξ^{0} K_{S}^{0} π^{+}$ and search for $Λ_{c}^{+} \to Σ^{0} K_{S}^{0} K^{+}$

Observation of the electromagnetic radiative decays of the \boldmath{ $Λ (1520)$ } and \boldmath{ $Λ (1670)$ } to \boldmath{ $γ Σ^{0}$ }

Search for the lepton number violating process $J / ψ \to K^{+} K^{+} e^{-} e^{-} + c . c .$

Search for the charged lepton flavor violating decay $ψ (3686) \to e^{\pm} μ^{\mp}$

Measurement of the $Λ$ Electric Dipole Moment with an Entangled Baryon-Antibaryon System

Measurements of the absolute branching fractions of the doubly Cabibbo-suppressed decays $D^{+} \to K^{+} π^{0}$ , $D^{+} \to K^{+} η$ and $D^{+} \to K^{+} η^{'}$

Search for the charmonium weak decays $J / ψ \to D_{s}^{-} ρ^{+} + c . c .$ and $J / ψ \to D_{s}^{-} π^{+} + c . c .$

First measurement of $Σ^{+} n \to Λ p$ and $Σ^{+} n \to Σ^{0} p$ cross sections via $Σ^{+}$ -nucleus scattering at an electron-positron collider

Search for $1^{-+}$ charmonium-like hybrid via $e^{+} e^{-} \to γ η^{(')} η_{c}$ at center-of-mass energies between 4.258 and 4.681 GeV

Search for $J / ψ \to K_{S}^{0} K_{S}^{0}$ and $ψ (3686) \to K_{S}^{0} K_{S}^{0}$

Search for the FCNC charmonium decay $J / ψ \to D^{0} μ^{+} μ^{-} + c.c.$

Cross section measurement of $e^{+} e^{-} \to f_{1} (1285) π^{+} π^{-}$ at center-of-mass energies between $3.808$ and $4.951 GeV$

Search for $η_{c} (2 S) \to p p ˉ K^{+} K^{-}$ and measurement of $χ_{c J} \to p p ˉ K^{+} K^{-}$ in $ψ (3686)$ radiative decays

Observation of Charmonium $h_{c}$ Radiative Decays to Multiple Light Hadrons and the Tensor State $f_{2} (1270)$