Y. Bai

activity

20082026

most citedDiving below the spin-down limit: Constraints on gravitational waves from the energetic young pulsar PSR J0537-6910

51 citations · 156 across the 125 of their papers we have counts for

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52 papers · 1 filter

hep-ex2025

Study of $K ˉ^{*} (892)^{0} η$ and $K_{S}^{0} a_{0} (980)^{0}$ in the $D^{0} \to K_{S}^{0} π^{0} η$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +666

We perform an amplitude analysis of the decay $D^{0} \to K_{S}^{0} π^{0} η$ and measure its absolute branching fraction to be $(1.016 \pm 0.013_{\text {stat.}} \pm 0.014_{\text {syst.}})\%…

hep-ex2025

Observation and branching fraction measurements of $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Based on $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector, the decays $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$ ( $J = 0, 1, 2$ ) are observed for the fir…

hep-ex2025

Cross sections measurement of $e^{+} e^{-} \to Ξ (1530)^{0} Ξ ˉ^{0} + c . c .$ and search for $ψ (3770) \to Ξ (1530)^{0} Ξ ˉ^{0} + c . c .$

BESIII Colaboration, :, M. Ablikim +681

Using $e^{+} e^{-}$ collision data collected with the BESIII detector corresponding to an integrated luminosity of 44.2 fb $^{- 1}$ , we measure the Born cross sections for the process $e^…

hep-ex2025★ 1 cited

Evidence for the semileptonic decays $Λ_{c}^{+} \to Σ^{\pm} π^{\mp} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

Using $4.5 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected by the BESIII detector at center-of-mass energies between $4.600$ and $4.699 G e V$ , we search for the semileptonic decays…

hep-ex2025

Measurement of the branching fraction of $η \to μ^{+} μ^{-}$ and search for $η \to e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +702

We analyze the decay of $η \to ℓ^{+} ℓ^{-} (ℓ = e, μ)$ via $J / ψ \to γ η^{'}$ and $η^{'} \to π^{+} π^{-} η$ , based on (10087 $\pm$ 44) $\times$ 10 $^{6}$ $J / ψ$ events collecte…

hep-ex2025

Experimental study of the reaction $Ξ^{0} n \to ΛΛ X$ using $Ξ^{0}$ -nucleus scattering

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector operating at the BEPCII storage ring in $2009$ , $2012$ , $2018$ , and $2019$ , we perform a search for…

hep-ex2025

Search for the lepton number violating process $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +691

We present a search for the lepton number violating decay $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$ with $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected by the BESIII detector at the BEPCII…

hep-ex2025

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

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

We report an experimental investigation of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $n ˉ p \to 2 π^{+} π^{-} π^{0}$ , and $n ˉ p \to 2 π^{+} π^{-} 2 π^{0}$ using $(10.087 \pm 0.0…

hep-ex2025★ 1 cited

Search for the charmonium weak decay $J / ψ \to D ˉ^{0} K ˉ^{* 0} + c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +699

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected at the center-of-mass energy $s$ = 3.0969 GeV with the BESIII detector, we search for the charmonium rar…

hep-ex2025

Test of $C P$ Symmetry in the Neutral Decays of $Λ$ via $J / ψ \to Λ Λ ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, a full angular distribution analysis is carried out on the process $J/ψ\rightarrowΛ\barΛ\rightarro…

hep-ex2025

Measurements of absolute branching fractions of $D^{0 (+)} \to K K K π$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +697

Using an $e^{+} e^{-}$ sample of $20.3 f b^{- 1}$ collected at the center-of-mass energy $s =$ 3.773 GeV with the BESIII detector, we report measurements of several four-body h…

hep-ex2025

Amplitude analysis and branching fraction measurement of the decay $D^{0} \to K_{S}^{0} π^{0} π^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

An amplitude analysis of the decay $D^{0} \to K_{S}^{0} π^{0} π^{0}$ is performed to determine the relative magnitudes and phases of different intermediate processes. The analysis uses $e^+e…

hep-ex2025

Search for the charmonium semi-leptonic weak decay $J / ψ \to D_{s}^{-} e^{+} ν_{e} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector at a centre-of-mass energy of $s = 3.097 GeV$ , a dedicated search…

hep-ex2025

Precision Measurement of $D_{s}^{*+}$ - $D_{s}^{+}$ Mass Difference

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

We measure the mass difference between $D_{s}^{*+}$ and $D_{s}^{+}$ , $Δ m_{s}$ , using the decay chain $D_{s}^{*+} \to D_{s}^{+} (\to K^{+} K^{-} π^{+}) π^{0}$ , utilizing $e^{+} e^{-}$ annihi…

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★ 1 cited

Study of the Magnetic Dipole Transition of $J / ψ \to γ η_{c}$ via $η_{c} \to p p ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +692

Using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector at the $e^{+} e^{-}$ BEPCII collider, we present the first amplitude analysis of $J / ψ \to γ p p ˉ$ wit…

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

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

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

Based on a sample of $(10.087 \pm 0.044) \times 1 0^{9} J / ψ$ events collected by the BESIII detector at the BEPCII collider, we perform the first search for the lepton number violati…

hep-ex2025★ 1 cited

Exploring baryon semi-leptonic decays through polarization and entanglement

BESIII Collaboration, M. Ablikim, M. N. Achasov +697

The unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is a cornerstone of the Standard Model (SM). Precise tests of this unitarity require independent determinations of its e…

hep-ex2025

Measurement of the space-like $π^{0}$ transition form factor

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

Based on $2.93 fb^{- 1}$ of $e^{+} e^{-}$ collision data taken with the BESIII detector at a center-of-mass energy of $3.773 GeV$ , the two-photon fusion process $e^+e^-\t…

hep-ex2025

Search for the electromagnetic Dalitz decays $χ_{c J} \to e^{+} e^{-} ϕ$

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

Using a data sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected at $s = 3.686$ GeV by the BESIII detector, we search for the rare electromagnetic Dalitz deca…

hep-ex2025

Observation of $ψ (3686) \to γ η (1405)$ via $η (1405) \to f_{0} (980) π^{0}$

M. Ablikim, M. N. Achasov, P. Adlarson +694

The decay $ψ (3686) \to γ π^{+} π^{-} π^{0}$ is studied using a sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector. The decay $η (1405) \to π^{+} π^{-} π^{0}$ is ob…

hep-ex2025

Helicity amplitude and branching fraction measurement of $χ_{c J} \to Λ Λ ˉ$

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

Utilizing $2712.4 \pm 14.3$ million $ψ (3686)$ events accumulated by the BESIII experiment, we perform a partial wave analysis of $ψ (3686) \to γ χ_{c J} \to γ Λ Λ ˉ$ decay…

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…

Study of Kˉ∗(892)0η and KS0​a0​(980)0 in the D0→KS0​π0η decay

Observation and branching fraction measurements of χcJ​→ppˉ​KS0​KS0​

Cross sections measurement of e+e−→Ξ(1530)0Ξˉ0+c.c. and search for ψ(3770)→Ξ(1530)0Ξˉ0+c.c.

Evidence for the semileptonic decays Λc+​→Σ±π∓e+νe​

Measurement of the branching fraction of η→μ+μ− and search for η→e+e−

Experimental study of the reaction Ξ0n→ΛΛX using Ξ0-nucleus scattering

Search for the lepton number violating process Ξ−→Σ+e−e−+c.c.

Study of the reactions nˉp→2π+π−, 2π+π−π0, and 2π+π−2π0 using J/ψ→pπ−nˉ

Search for the charmonium weak decay J/ψ→Dˉ0Kˉ∗0+c.c.

Test of CP Symmetry in the Neutral Decays of Λ via J/ψ→ΛΛˉ

Measurements of absolute branching fractions of D0(+)→KKKπ decays

Amplitude analysis and branching fraction measurement of the decay D0→KS0​π0π0

Search for the charmonium semi-leptonic weak decay J/ψ→Ds−​e+νe​+c.c.

Precision Measurement of Ds∗+​-Ds+​ Mass Difference

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

Study of the Magnetic Dipole Transition of J/ψ→γηc​ via ηc​→ppˉ​

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

Search for the lepton number violating decay η→π+π+e−e−+c.c. via J/ψ→ϕη

Exploring baryon semi-leptonic decays through polarization and entanglement

Measurement of the space-like π0 transition form factor

Search for the electromagnetic Dalitz decays χcJ​→e+e−ϕ

Observation of ψ(3686)→γη(1405) via η(1405)→f0​(980)π0

Helicity amplitude and branching fraction measurement of χcJ​→ΛΛˉ

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

Study of $K ˉ^{*} (892)^{0} η$ and $K_{S}^{0} a_{0} (980)^{0}$ in the $D^{0} \to K_{S}^{0} π^{0} η$ decay

Observation and branching fraction measurements of $χ_{c J} \to p p ˉ K_{S}^{0} K_{S}^{0}$

Cross sections measurement of $e^{+} e^{-} \to Ξ (1530)^{0} Ξ ˉ^{0} + c . c .$ and search for $ψ (3770) \to Ξ (1530)^{0} Ξ ˉ^{0} + c . c .$

Evidence for the semileptonic decays $Λ_{c}^{+} \to Σ^{\pm} π^{\mp} e^{+} ν_{e}$

Measurement of the branching fraction of $η \to μ^{+} μ^{-}$ and search for $η \to e^{+} e^{-}$

Experimental study of the reaction $Ξ^{0} n \to ΛΛ X$ using $Ξ^{0}$ -nucleus scattering

Search for the lepton number violating process $Ξ^{-} \to Σ^{+} e^{-} e^{-} + c . c .$

Study of the reactions $n ˉ p \to 2 π^{+} π^{-}$ , $2 π^{+} π^{-} π^{0}$ , and $2 π^{+} π^{-} 2 π^{0}$ using $J / ψ \to p π^{-} n ˉ$

Search for the charmonium weak decay $J / ψ \to D ˉ^{0} K ˉ^{* 0} + c.c.$

Test of $C P$ Symmetry in the Neutral Decays of $Λ$ via $J / ψ \to Λ Λ ˉ$

Measurements of absolute branching fractions of $D^{0 (+)} \to K K K π$ decays

Amplitude analysis and branching fraction measurement of the decay $D^{0} \to K_{S}^{0} π^{0} π^{0}$

Search for the charmonium semi-leptonic weak decay $J / ψ \to D_{s}^{-} e^{+} ν_{e} + c . c .$

Precision Measurement of $D_{s}^{*+}$ - $D_{s}^{+}$ Mass Difference

Study of the Magnetic Dipole Transition of $J / ψ \to γ η_{c}$ via $η_{c} \to p p ˉ$

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 $J / ψ \to Ξ^{0} Σ ˉ^{-} K^{+} + c . c .$

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

Measurement of the space-like $π^{0}$ transition form factor

Search for the electromagnetic Dalitz decays $χ_{c J} \to e^{+} e^{-} ϕ$

Observation of $ψ (3686) \to γ η (1405)$ via $η (1405) \to f_{0} (980) π^{0}$

Helicity amplitude and branching fraction measurement of $χ_{c J} \to Λ Λ ˉ$