1396 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 reduced basis emulator for continuum-discretized coupled-channels calculations that utilizes proper orthogonal decomposition and Galerkin projection to achieve approximately 100-fold speedups with sub-percent accuracy, thereby enabling efficient uncertainty quantification and Bayesian parameter estimation for nuclear reaction studies.
This paper demonstrates that neglecting off-diagonal imaginary couplings in weakly bound nuclear reactions leads to a biased physical picture by overestimating total absorption and underestimating breakup contributions, thereby establishing the necessity of full-coupling CDCC calculations with coherent interference terms for accurate mechanism-resolved cross-section extraction.
This review reorganizes ten frontier questions in nuclear science and technology to provide an integrative research framework that connects fundamental physics, advanced methodologies, and strategic applications, offering a scholarly roadmap for the field's future development.
This paper applies first-principles many-body ab initio nuclear modeling with chiral effective field theory to calculate light dark matter mediator production rates at electron fixed-target experiments, revealing that a quasi-elastic treatment can increase predicted signal yields by up to two orders of magnitude compared to standard phenomenological parameterizations.
This paper demonstrates that fluctuation-response relations in a rotating stochastic Landau model emerge from an inherent symmetry of the coarse-grained Martin-Siggia-Rose path integral, which links entropy production to time-reversed dynamics and yields Ward identities that align with high-temperature fluctuation-dissipation relations only upon imposing the Einstein relation.
This paper demonstrates that recycling a single ancilla qubit through mid-circuit measurement and reset reduces the active qubit requirement for rodeo filtering in trapped neutron-proton scattering simulations from 12 to 3, achieving a 75% hardware compression while maintaining accuracy comparable to static implementations.
This paper investigates the electromagnetic screening properties of fermionic domain-wall Skyrmions within the chiral soliton lattice of two-flavor QCD under a strong magnetic field, utilizing moduli effective theory and finite-temperature chiral perturbation theory to characterize baryon density saturation and predict static screening via a combined Debye mass.
This paper demonstrates that artificial confinement methods using harmonic-oscillator traps, spherical hard walls, and periodic boxes can consistently extract coupled-channel scattering observables, including phase shifts and inelasticity, for the He system with and without Coulomb interactions, thereby providing a controlled benchmark for future ab initio reaction calculations.
This paper introduces a Direct Boundary Matching Method (DBMM) that solves nuclear scattering problems, including coupled-channel cases, by incorporating outgoing wave boundary conditions directly into a Lagrange-Legendre matrix formulation, thereby eliminating the need for Bloch operators or complex coordinate scaling while achieving accuracy comparable to traditional Numerov integration.
This study demonstrates that nuclear responses to two-body external fields in 16O and 40Ca require a fully microscopic Second Random-Phase-Approximation treatment of 2p2h mixing, as simple folding of one-body responses fails to capture the significant energy shifts and strength redistributions observed in double-phonon excitations.