895 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 presents a model for coherent Deeply Virtual Compton Scattering on polarized He at the Electron-Ion Collider, demonstrating that early data will precisely constrain the unpolarized Compton Form Factor while requiring significantly higher luminosities to meaningfully constrain the polarized component, alongside an analysis of the necessary far-forward detector capabilities for tagging intact nuclei.
This paper presents an exact solution to the relativistic finite-difference equation for the three-dimensional ring-shaped Quesne oscillator potential, deriving discrete energy spectra and wavefunctions expressed via continuous dual Hahn and Jacobi polynomials while establishing an SU(1,1) dynamical symmetry group for an algebraic determination of the spectrum.
This paper resolves a conundrum regarding nuclear binding by demonstrating through Hartree-Fock variational upper bounds that while lattice Hamiltonians with only two-nucleon potentials fail to accurately describe nuclear saturation compared to previous Monte Carlo results, those including three-nucleon potentials achieve constant binding energy per nucleon primarily due to the dense packing inherent to the lattice discretization rather than repulsive interactions.
This paper applies the Confined beta-Soft (CBS) rotor model to systematically calculate and compare ground-state band energies, B(E2) transition rates, and beta-band excitations of even-even rare-earth nuclei with experimental data, while also providing predictions for unmeasured observables to guide future research.
This paper proposes a method to reconstruct the gluon spatial distribution in high-energy nuclei by measuring the projected momentum transfer distribution perpendicular to the electron scattering plane to mitigate resolution effects and utilizing the angular distribution of vector meson decay products to statistically suppress incoherent backgrounds.
This study employs state-of-the-art full configuration-interaction quantum Monte Carlo (FCIQMC) to perform exact calculations of infinite nucleonic matter, revealing that symmetric nuclear matter is strikingly strongly correlated and challenging the validity of previous many-body expansion truncations.
This study presents the first end-to-end simulation demonstrating that the accretion-induced collapse of a magnetized, rapidly rotating white dwarf produces neutron-rich, lanthanide-rich ejecta capable of robust -process nucleosynthesis, generating a near-infrared kilonova signal that matches the observed properties of AT 2023vfi/GRB 230307A without parameter tuning.
This paper establishes a theoretical framework comparing closed-system neural network ensembles with open-system analogs from nuclear reaction theory, ultimately concluding that the latter's distinctive non-Hermitian dynamics are structurally absent in mainstream learning due to the lack of continuous spectra and wave-like behavior, thereby locating the true source of operational uncertainty within the closed-system correspondence.
This paper proposes that precise measurements of total charm production in heavy-ion collisions, when combined with improved calculations of initial hard scatterings, can serve as a signature to infer properties of the pre-equilibrium stage, despite current theoretical uncertainties.
This paper presents a general framework for subtracting nonflow effects from multi-particle cumulants in small collision systems by leveraging scaling and dipolar flow estimators, thereby enabling the systematic quantification of collective flow at particle multiplicities previously inaccessible due to uncontrolled nonflow residuals.