Y. Feng

activity

20242026

collaborators

5 papers

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-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…

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 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

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