Y. Feng

activity

20242026

collaborators

15 papers

hep-ex2026

Observation of double $s s ˉ$ production in $e^{+} e^{-}$ collision at $s = 3.08 GeV$

BESIII Collaboration, M. Ablikim, M. N. Achasov +779

We report the observation of significant double- $s s ˉ$ production in the $e^{+} e^{-}$ continuum, based on the measurement of prompt $ϕ$ mesons produced in association with hadrons…

hep-ex2026

Evidence for the semileptonic decay $Λ_{c}^{+} \to p π^{-} e^{+} ν_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Based on $4.5 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider at center-of-mass energies between $4.600 GeV$ and…

hep-ex2026

Search for the doubly Cabibbo-suppressed decays $D^{0} \to K^{+} π^{-} η^{'}$ and $D^{+} \to K^{+} π^{0} η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +774

We present the first search for the doubly Cabibbo-suppressed decays $D^{0} \to K^{+} π^{-} η^{'}$ and $D^{+} \to K^{+} π^{0} η^{'}$ using an $e^{+} e^{-}$ collision data sample corresponding to an…

hep-ex2026

Measurement of CP Asymmetry Parameters and Polarization Correlations in $Ω^{-} Ω ˉ^{+}$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

Using $(2.71 \pm 0.01) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector, a joint full angular distribution analysis is carried out for the process $ψ(3686) \to Ω^-(…

hep-ex2026

Study of $K_{S}^{0}$ - $K_{L}^{0}$ asymmetry in the decays $D^{0} \to K_{S}^{0} ω$ and $D^{0} \to K_{L}^{0} ω$

BESIII Collaboration, M. Ablikim, M. N. Achasov +760

Based on $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 7.93~ $f b^{- 1}$ collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the B…

hep-ex2026

Measurement of inelastic scattering $Λ (Λ) + p \to Σ^{0} (Σ^{0}) + p$ via $e^{+} e^{-} \to J / ψ \to Λ Λ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +774

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / ψ$ events collected with the BESIII detector, we investigate the inelastic scattering processes $Λ + p \to Σ^{0} + p$ and $\overlineΛ+p\to…

hep-ex2026

Observation of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

Using a sample of $(2.712 \pm 0.014) \times 1 0^{9}$ $ψ (3686)$ events collected with the BESIII detector, the decay of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$ is observed for the fir…

hep-ex2026

Search for the baryonic decay $D_{s}^{*+} \to p n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +768

The first search for the baryonic decay $D_{s}^{*+} \to p n ˉ$ is performed using $e^{+} e^{-}$ collision data taken at center-of-mass energies between 4.128 and 4.226 GeV, coll…

math.DS2026

Hidden Harmonic Structure, Universal Damping, and Stability Bounds in Nonlinear Contact Dynamics

Y. T. Feng

Nonlinear contact dynamics are widely regarded as intrinsically nonlinear systems whose behaviour depends strongly on geometry and impact conditions. Here we show that any one-dime…

physics.comp-ph2026

Exact Phase-Space Analytical Solution for the Power-Law Damped Contact Oscillator

Y. T. Feng

We present an exact phase-space analytical treatment of the power-law damped contact oscillator governed by $m δ ¨ + α m k_{H} δ^{(p - 1) /2} δ ˙ + k_{H} δ^{p} = 0$ , valid for all f…

hep-ex2026

Search for the charmonium weak decay $ψ (2 S) \to D_{s}^{-} π^{+} + c . c .$ and $ψ (2 S) \to D_{s}^{-} ρ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +720

Using the data sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ $ψ (2 S)$ events collected with the BESIII detector at the center-of-mass energy $s = 3.686 GeV$ , we search for the w…

hep-ex2026

Search for the isospin-violating decays $χ_{cJ} \to Λ Σ ˉ^{0} + c . c .$ and $η_{c} \to Λ Σ ˉ^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +701

Using a sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ ~ $ψ (3686)$ events collected with the BESIII detector, we perform a search for the isospin-violating decays $χ_{cJ}\toΛ\barΣ^{0}+c.c.~…

hep-ex2025

Search for a dark baryon in the $Ξ^{-} \to π^{-} + invisible$ decay

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

A search for a dark baryon is performed for the first time in the two-body decay $Ξ^{-} \to π^{-} + invisible$ using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / ψ$ events collected at…

hep-ex2025

Observation of the $W$ -annihilation process $D_{s}^{+} \to ω ρ^{+}$ and measurement of $D_{s}^{+} \to ϕ ρ^{+}$ in $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

We present the first amplitude analysis and branching fraction measurement of the decay $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ , using $e^{+} e^{-}$ collision data collected with the BESIII detector…

physics.geo-ph2024

Machine Learning Aided Modeling of Granular Materials: A Review

Mengqi Wang, Krishna Kumar, Y. T. Feng +2

Artificial intelligence (AI) has become a buzz word since Google's AlphaGo beat a world champion in 2017. In the past five years, machine learning as a subset of the broader catego…

Observation of double ssˉ production in e+e− collision at s​=3.08 GeV

Evidence for the semileptonic decay Λc+​→pπ−e+νe​

Search for the doubly Cabibbo-suppressed decays D0→K+π−η′ and D+→K+π0η′

Measurement of CP Asymmetry Parameters and Polarization Correlations in Ω−Ωˉ+ Pairs

Study of KS0​-KL0​ asymmetry in the decays D0→KS0​ω and D0→KL0​ω

Measurement of inelastic scattering Λ(Λ)+p→Σ0(Σ0)+p via e+e−→J/ψ→ΛΛ

Observation of ψ(3686)→pK−KS0​Ξˉ0+c.c.

Search for the baryonic decay Ds∗+​→ pnˉ

Hidden Harmonic Structure, Universal Damping, and Stability Bounds in Nonlinear Contact Dynamics

Exact Phase-Space Analytical Solution for the Power-Law Damped Contact Oscillator

Search for the charmonium weak decay ψ(2S)→Ds−​π++c.c. and ψ(2S)→Ds−​ρ++c.c.

Search for the isospin-violating decays χcJ​→ΛΣˉ0+c.c. and ηc​→ΛΣˉ0+c.c.

Search for a dark baryon in the Ξ−→π−+invisible decay

Observation of the W-annihilation process Ds+​→ωρ+ and measurement of Ds+​→ϕρ+ in Ds+​→π+π+π−π0π0 decays

Machine Learning Aided Modeling of Granular Materials: A Review

Observation of double $s s ˉ$ production in $e^{+} e^{-}$ collision at $s = 3.08 GeV$

Evidence for the semileptonic decay $Λ_{c}^{+} \to p π^{-} e^{+} ν_{e}$

Search for the doubly Cabibbo-suppressed decays $D^{0} \to K^{+} π^{-} η^{'}$ and $D^{+} \to K^{+} π^{0} η^{'}$

Measurement of CP Asymmetry Parameters and Polarization Correlations in $Ω^{-} Ω ˉ^{+}$ Pairs

Study of $K_{S}^{0}$ - $K_{L}^{0}$ asymmetry in the decays $D^{0} \to K_{S}^{0} ω$ and $D^{0} \to K_{L}^{0} ω$

Measurement of inelastic scattering $Λ (Λ) + p \to Σ^{0} (Σ^{0}) + p$ via $e^{+} e^{-} \to J / ψ \to Λ Λ$

Observation of $ψ (3686) \to p K^{-} K_{S}^{0} Ξ ˉ^{0} + c . c .$

Search for the baryonic decay $D_{s}^{*+} \to p n ˉ$

Search for the charmonium weak decay $ψ (2 S) \to D_{s}^{-} π^{+} + c . c .$ and $ψ (2 S) \to D_{s}^{-} ρ^{+} + c . c .$

Search for the isospin-violating decays $χ_{cJ} \to Λ Σ ˉ^{0} + c . c .$ and $η_{c} \to Λ Σ ˉ^{0} + c . c .$

Search for a dark baryon in the $Ξ^{-} \to π^{-} + invisible$ decay

Observation of the $W$ -annihilation process $D_{s}^{+} \to ω ρ^{+}$ and measurement of $D_{s}^{+} \to ϕ ρ^{+}$ in $D_{s}^{+} \to π^{+} π^{+} π^{-} π^{0} π^{0}$ decays