W. Kou

Orbital Angular Momentum as a Transverse Probe of Elliptic Small- $x$ Gluon Tomography

Wei Kou, Xurong Chen

We propose a new way to probe elliptic small- $x$ gluon geometry in hard diffractive dijet deep inelastic scattering: a localized lepton wave packet carrying orbital angular momentu…

nucl-th2026

A Lawson-inspired Cycle-Closure Criterion for Deuterium--Tritium Muon-Catalyzed Fusion

Wei Kou, Xurong Chen

Deuterium--tritium muon-catalyzed fusion is limited by a cycle-closure problem: a negative muon must complete enough catalytic cycles before decay or effective alpha sticking remov…

Twisting Small- $x$ Gluon Tomography with Orbital Angular Momentum

Wei Kou, Xurong Chen

We propose an orbital-angular-momentum-resolved extension of small- $x$ gluon tomography in hard diffractive dijet deep inelastic scattering. In the standard plane-wave setup, the e…

nucl-th2026

External-Field-Assisted Muon Reactivation in Muon-Catalyzed Fusion: A Rate-Network Criterion for Reducing Alpha Sticking

Wei Kou, Xurong Chen

Alpha sticking is a major loss channel in deuterium--tritium muon-catalyzed fusion. We study whether an additional external-field-assisted stripping channel can reduce the residual…

Muon-Catalyzed Nuclear Fusion: Physical Mechanism, Bottleneck Breakthroughs, and an Engineering Pathway

Xiong Yin, Wei Kou, Xurong Chen

Muon-catalyzed nuclear fusion (\mucf) replaces atomic electrons with negative muons, compressing atomic orbitals by about two orders of magnitude and enabling deuterium--tritium (D…

Probing Proton Structure via Physics-Guided Neural Networks in Holographic QCD

Wei Kou, Xurong Chen

Describing the proton structure function $F_{2} (x, Q^{2})$ across the nonperturbative and transition regimes of QCD remains a major theoretical challenge. We construct a physics-guided…

physics.atom-ph2026

Probing a Fifth Force in Muonic Atoms through Lamb Shifts and Hyperfine Structure

Xiaoxuan Lin, Qian Wu, Wei Kou +1

Motivated by the ATOMKI anomalies in 8Be and 4He transitions, we study X17-induced Lamb shifts and hyperfine splittings in muonic atoms with stable nuclei up to Z <= 15. The bound-…

Extraction of the color dipole amplitude with physics-informed neural networks

Wei Kou, Xurong Chen

The process-independence of the color dipole amplitude is a cornerstone of high-energy Quantum Chromodynamics (QCD). However, standard phenomenological approaches typically rely on…

Probing Saturon-like Limits in QCD Systems

Wei Kou, Xurong Chen

High-occupancy QCD matter enters a saturated regime when its entropy or occupancy approaches the unitarity bound $\sim 1/ α$ , the ``saturon" criterion. We test this criterion for pr…

Emergence of Photon Bose-Einstein Condensation from Down-Scattering in Cold Electron Media

Bing'ang Guo, Wei Kou, Xurong Chen

In this study, we examine the emergence of photon Bose-Einstein condensation (BEC) resulting from the interaction of high-energy photons with a cold electron gas, modeled via a mod…

First Extraction of the $ϕ$ - $^{4} He$ scattering length from near-threshold $ϕ$ photoproduction on helium-4

Chengdong Han, Wei Kou, Rong Wang +1

We present a model-independent extraction of the phi-4He scattering length from near-threshold phi photoproduction on helium-4, based on LEPS Collaboration data for the coherent pr…

Physics-Informed Neural Network Approach to Quark-Antiquark Color Flux Tube

Wei Kou, Xiaoxuan Lin, Bing'ang Guo +1

We introduce a physics-informed neural network (PINNs) framework for modelling the spatial distribution of chromodynamic fields induced by quark-antiquark pairs, based on lattice M…

High-Precision Physics Experiments at Huizhou Large-Scale Scientific Facilities

FengPeng An, Dong Bai, Siyuan Chen +39

In response to the capabilities presented by the High-Intensity Heavy Ion Accelerator Facility (HIAF) and the Accelerator-Driven Subcritical System (CiADS), as well as the proposed…

Machine Learning Insights into Quark-Antiquark Interactions: Probing Field Distributions and String Tension in QCD

Wei Kou, Xurong Chen

Understanding the interactions between quark-antiquark pairs is essential for elucidating quark confinement within the framework of quantum chromodynamics (QCD). This study investi…

Maximum Entropy Method for Valence Quark Distributions in Exotic Hadrons: A Study of the $Z_{c} (3900)$ Case

Chengdong Han, Xiaopeng Wang, Wei Kou +1

In this study we demonstrate the application of the Maximum Entropy Method (MEM) to determine the valence quark distribution of exotic hadrons. Our investigation yields three key f…

Unveiling the Secrets of Vortex Neutron Decay

Wei Kou, Bing'ang Guo, Xurong Chen

Investigation of decay and scattering processes of particles in a vortex state offers a novel and promising approach for probing particle structure. Our study reveals distinct prop…

Locating Quark-Antiquark String Breaking in QCD through Chiral Symmetry Restoration and Hawking-Unruh Effect

Wei Kou, Xurong Chen

The relationship between QCD and the string model offers a valuable perspective for exploring the interaction potential between quarks. In this study, we investigate the restoratio…

Estimating the production of dark photons with $η$ decay in Ultra-peripheral Collisions

Wei Kou, Xurong Chen

We propose that the signal of dark photons can be found in the decay channel of $η$ , and that a certain number of events of dark photon leptonic decay can be observed in the double…

Deriving the QCD evolution equations under the Abelian decomposition scheme

Yirui Yang, Wei Kou, Xiaopeng Wang +2

The Abelian decomposition of QCD reveals two types of gluons: color-neutral ``neurons" and color-carrying ``chromons". This classification does not alter the overall properties of…