nucl-th

Exploring Particle Production and Thermal-Like Behavior through Quantum Entanglement

Bottomonium transport in a strongly coupled quark-gluon plasma

This paper presents a semiclassical transport approach combining lattice-constrained $T$-matrix interactions with viscous hydrodynamics to model bottomonium suppression and regeneration in Pb-Pb collisions, successfully describing centrality-dependent yields at the LHC while highlighting discrepancies at high transverse momenta due to enhanced reaction rates.

Determination of the Muon Lifetime in $^{76}$Se with the MONUMENT experiment

The MONUMENT collaboration determined the muon lifetime in $^{76}$Se with improved accuracy to be (135.1 $\pm$ 0.5) ns, a result that aligns with phenomenological calculations using unquenched axial-vector coupling and serves as a benchmark for neutrinoless double beta decay models.

Self-gravitating baryonic tubes supported by $\pi$- and $\omega$-mesons and its flat limit

This paper constructs self-gravitating, singularity-free baryonic tube solitons in an $SU(N)$ Einstein non-linear sigma model coupled to $\omega$-mesons, demonstrating that increasing the number of flavors enhances physical predictions by reducing binding energy despite increasing total energy.

Inclusive $J/ψ$ productions in pp collisions at $\sqrt{s}=$ 5.02, 7, and 13 TeV with the PACIAE model

This study utilizes the PACIAE 4.0 model, which incorporates both color-singlet and color-octet NRQCD contributions alongside cluster collapse and $b$-hadron decays, to successfully simulate inclusive $J/\psi$ production in proton-proton collisions at 5.02, 7, and 13 TeV and provide a quantitative analysis of the relative contributions and rescattering effects across various production mechanisms.

New Physics Searches via Beam Normal Spin Asymmetry in Bhabha Scattering

This paper investigates the sensitivity of the beam normal spin asymmetry in Bhabha scattering to beyond-the-Standard-Model mediators within the JLab polarized positron program, highlighting how the observable's unique zero crossing in the Standard Model provides a clean, background-free opportunity to significantly extend search ranges for scalar and vector new physics scenarios.

Geometry of particle emission in UrQMD Ar+Sc collisions at SPS energies

This paper utilizes Ultra-Relativistic Quantum Molecular Dynamics (UrQMD) simulations to demonstrate that the three-dimensional two-pion emission source in intermediate-mass $^{40}$Ar+$^{45}$Sc collisions at SPS energies is well-described by Lévy-stable distributions, thereby establishing a theoretical baseline for future femtoscopy measurements in such systems.

The collectivity of transverse momentum fluctuations

This paper utilizes hydrodynamic modeling to demonstrate that the transverse momentum fluctuation observable $v_0(p_T)$ serves as a robust probe of radial flow and collectivity, revealing that its apparent sensitivity to transport coefficients is largely driven by changes in the mean transverse momentum and can be isolated through appropriate scaling.

Beyond Mean Field: Fluctuation Diagnostics and Fixed-Point Behavior

This paper develops theoretical diagnostics for the breakdown of mean-field theory, demonstrating how spatial structure and finite interaction ranges qualitatively alter the effective description and renormalization-group flow.

A novel approach to proton-boron-11 fusion

This paper proposes a novel kinetic approach to enhance proton-boron-11 fusion by utilizing negative muons to dynamically screen the Coulomb barrier, thereby significantly increasing tunneling probability and lowering the ignition threshold for this aneutronic energy pathway.