930 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 proposes a new method for identifying far-from-equilibrium attractors in boost-invariant relativistic fluid dynamics by leveraging the early-time singularity of evolution equations as a physical initial condition, thereby extending the concept of attractors to systems where traditional partial decoupling of equations is not possible.
This paper constructs a generalized second-order relativistic magnetohydrodynamics framework using Zubarev's nonequilibrium statistical operator to derive all dissipative tensors and Kubo formulas for a parity- and charge-conjugation-symmetric magnetized plasma, while extending the formalism to include nonlocal contributions.
This study presents new total photoabsorption cross sections for several $sd$-shell nuclei derived from small-angle 295 MeV proton scattering, comparing the results with artificial neural network predictions and configuration-interaction shell-model calculations to validate the latter's ability to describe fragmented electric dipole strength for applications in ultrahigh-energy cosmic ray research.
The paper demonstrates that small perturbations in the boost-invariant color fields of the glasma exhibit an exponential growth rate proportional to the square root of time, identifying this leading Lyapunov exponent as a key factor in entropy production and thermalization during the earliest stages of heavy-ion collisions.
This pedagogical review synthesizes experimental data from relativistic nucleus-nucleus collisions with Lattice QCD predictions to explore the existence and properties of the quark-gluon plasma and the broader QCD phase diagram.
This paper investigates the mesonic decays of the hypernucleus He by applying 4-momentum conservation within relativistic kinematics to calculate monochromatic pion momenta for two-body decays and employing Monte Carlo simulations for three-body decays, revealing distinct momentum peaks and demonstrating that only a negligible fraction of events produce nucleons with momenta exceeding the Fermi limit of He.
This paper employs an effective Lagrangian approach to successfully reproduce the production cross sections of known high-orbital kaon excited states in reactions and predicts that other such states exhibit sizable, forward-peaked cross sections, indicating their strong potential for future experimental observation.
This paper resolves the apparent contradiction between free-quark-like fluctuations of conserved charges and confined mesonic correlators above the chiral crossover by demonstrating that while mesonic propagation remains string-bound, conserved quark number densities effectively bypass confinement through quark interchanges between overlapping color-singlet clusters, a phenomenon analogous to quark-hadron duality.
This paper proposes a physics-guided framework that combines the effective liquid drop model with machine learning algorithms (specifically XGBoost and TabPFN) and physically motivated descriptors to significantly improve the prediction accuracy of -decay half-lives in heavy and superheavy nuclei by correcting macroscopic baseline residuals.
This paper computes the static electromagnetic susceptibilities of hot and dense quark-gluon plasma using perturbative QCD with leading hard and soft corrections, bridging the gap between perturbative calculations and Lattice QCD results to provide first-principle constraints on the plasma's electromagnetic response at finite baryon chemical potential where Lattice methods fail.