1172 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 employs a spherical Skyrme-force Hartree-Fock BCS quasi-particle random phase approximation to map the landscape of nuclear deformation softness across the nuclide chart, diagnosing ground-state instabilities and calculating multipole polarizability to reveal the interplay between intrinsic nuclear shapes, shell structure, and low-lying collective dynamics.
By combining perturbative QCD equations of state with Lattice QCD data to constrain the bag parameter, this study suggests that while stable 2-flavor quark matter remains possible, stable 2+1-flavor quark matter is excluded under current theoretical assumptions.
This study combines time-of-flight measurements of beta-delayed neutron emission from Cd with large-scale shell model calculations to demonstrate that the decay is driven by a specific transition, thereby validating the model's superior predictive accuracy over global models like FRDM for -process waiting points.
This paper constructs a linear parity doublet model for octet baryons that, by incorporating the representation containing "bad" diquarks alongside the dominant representation, successfully reproduces the ground-state mass hierarchy (including the - ordering) and predicts the spectrum of excited states up to 2.5 GeV.
This paper presents a global, semi-classical framework for calculating -decay half-lives of even-even nuclei by determining the Woods-Saxon potential depth through the Bohr-Sommerfeld quantization condition, achieving accuracy comparable to experimental data while enabling efficient large-scale predictions.
This paper derives fully analytic, first-principles expressions for surface return currents in mixed dipole-quadrupole magnetospheres, demonstrating that accounting for sub-dominant quadrupole components is essential for accurately predicting X-ray pulse profiles and constraining neutron star properties, as standard dipole-based models fail to capture significant heating discrepancies.
This paper investigates how correlated and uncorrelated variations in neutron capture rates, derived from an uncertainty-quantified optical potential, influence elemental abundances across three weak r-process scenarios, revealing that while correlations alter the co-variation patterns of abundances, they do not necessarily reduce the overall uncertainty envelope compared to uncorrelated treatments.
This paper investigates how a non-self-annihilating self-interacting fermionic dark matter component affects hybrid neutron stars, finding that its gravitational coupling reduces the critical mass for the hadron-quark phase transition and significantly lowers radial oscillation frequencies.
This paper resolves the hyperon puzzle in neutron stars by demonstrating that the $SU(3)$ parity doublet model, through chiral symmetry restoration and a large chiral invariant mass, naturally delays hyperon emergence to densities where quark deconfinement occurs, thereby preserving the equation of state's stiffness without requiring ad hoc repulsive interactions.
This paper establishes a new benchmark for heavy-quark TMD resummation at the LHC by developing a framework that combines SCET and HQET to achieve NNLL' accuracy for the azimuthal decorrelation of boosted top quark pairs, a feat made possible by the first extraction of the two-loop ultra-collinear function.