1401 papers
Nuclear theory sits at the fascinating intersection of particle physics and the forces that hold our universe together. This field explores how protons and neutrons bind inside atomic nuclei, seeking to understand the fundamental interactions that govern matter at its most dense and energetic levels. While the mathematics involved can be incredibly complex, the core questions are deeply human: how does the universe function at its smallest scales, and what happens when we push matter to its limits?
At Gist.Science, we make these cutting-edge discoveries accessible by processing every new preprint published in this category on arXiv. Our team transforms dense academic manuscripts into clear, plain-language summaries alongside detailed technical overviews, ensuring that both experts and curious readers can grasp the latest breakthroughs without getting lost in the jargon. Below are the latest papers in nuclear theory, distilled and ready for you to explore.
This paper demonstrates that by employing a collision kernel conserving energy-momentum and particle current, the poles of the relativistic kinetic equation yield a dispersion relation with a systematic gradient structure where spatial and temporal gradients appear in unison, thereby ensuring causality in truncated hydrodynamic theories.
This paper investigates the formation of three-body bound states in the continuum (BICs) using a one-dimensional model of two identical bosons and a distinguishable particle, demonstrating that while both interaction parameters and mass ratio variations can induce BICs, the latter produces a more regular pattern, suggesting that the BIC formation mechanism is more sensitive to the system's kinematic structure than to specific two-body interaction details.
This study utilizes an expanding elliptic fire-cylinder model to successfully describe the transverse momentum spectra and elliptic flow of light hadrons produced in peripheral Au+Au collisions across the RHIC Beam Energy Scan range, demonstrating that parameters constrained by pion data can consistently predict the behavior of kaons and protons without further adjustment.
This lattice simulation study reveals that weak acceleration in gluodynamics transforms the finite-temperature confinement-deconfinement phase transition into a spatial crossover where coexisting phases are separated by a boundary accurately described by the Tolman-Ehrenfest law, suggesting such spatial transitions may occur near Schwarzschild black hole horizons.
This paper investigates the dependence of two-particle azimuthal correlations on the forward rapidity gap width in 8.16 TeV pPb collisions to determine if collective flow signatures persist in events enriched with photon-lead and pomeron-lead interactions, comparing the results against previous measurements and modern event generators.
This study utilizes the JAM model and a novel Centrality-Independent Genuine Cumulant Analysis (CIGAR) framework to systematically analyze higher-order proton cumulants in Au+Au collisions at high baryon densities, providing a dynamic non-critical baseline essential for the search for the QCD critical point.
Using a covariant relativistic Vlasov approach within relativistic mean-field models, this study demonstrates that strong coupling between nuclear and leptonic (electron and muon) plasmon modes in neutron star matter can significantly alter the onset and character of nuclear collective excitations.
This paper applies Short-Range Effective Field Theory expanded around the unitarity limit to study three- and four-boson systems, demonstrating that the binding energies and radii of He clusters can be accurately described by universal discrete scale invariance with only small perturbative corrections for finite scattering length, effective range, and four-body forces.
This paper establishes that the Cooper--Frye map in relativistic spin hydrodynamics possesses a stratified fibration structure under pseudo-gauge transformations, which classifies observables, constrains their independence, and provides a structural framework to interpret tensions in heavy-ion polarization data while recovering known theoretical obstructions.
This paper presents quantum-mechanical calculations demonstrating that coherent bremsstrahlung emission overwhelmingly dominates over incoherent emission in Sn+Sn scattering at 25 MeV/u, a behavior that contrasts sharply with proton-nucleus collisions and reveals a new quantum regime for studying coherent effects in heavy-ion reactions.