1104 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.
Using chiral effective field theory interactions and the time-dependent coupled-cluster method, this study reveals that two-particle-two-hole excitations in O and Ca nuclei generate small-amplitude, fast, short-ranged, and stochastic density fluctuations.
This paper analyzes BaBar data for the process using a vector meson dominance model to demonstrate the cross section's sensitivity to the meson's magnetic dipole moment, yielding a central value of 4.5 and an upper bound of 6.3 (in units of ) while highlighting the need for higher precision data to achieve a definitive data-driven determination.
This paper employs a spherical-tensor formalism to demonstrate that the Mott-insulating ground state of the Jahn–Teller–Hubbard molecule in AC is characterized by local electron–phonon entanglement and composite quadrupole moments that vanish in conventional electronic and lattice observables, revealing a unique multiplet structure distinct from standard quadrupolar degrees of freedom.
This paper presents a configuration-space Faddeev formalism that unifies all scattering processes between single and double continua into a single matrix, which is demonstrated through its application to neutron-deuteron scattering.
This paper utilizes Born-Oppenheimer effective field theory (BOEFT) to systematically quantify open-flavor threshold effects on the quarkonium spectrum by solving coupled Schrödinger equations with lattice-constrained static potentials, successfully reproducing experimental data and providing a field-theoretical interpretation of the phenomenological model's pair-creation constant.
This paper proposes that the appropriate initial conditions for hydrodynamic evolution in small collision systems can be derived by coarse-graining the proton's quantum wave function into a semi-classical, positive-definite Wehrl-like entropy, thereby bridging the gap between pure quantum states and the maximally mixed states required by relativistic hydrodynamics.
This paper presents a systematic calculation of non-dissipative, quantum-origin second-order hydrodynamic corrections to the stress-energy tensor and currents for free boson and Dirac fields in thermal vorticity, deriving their Kubo formulae via equilibrium correlators and demonstrating that the axial current receives vorticity-proportional corrections independent of anomalous terms.
This study extends multireference covariant density functional theory to successfully reproduce the low-energy structure of the odd-mass nucleus S, revealing a ground state dominated by an intruder prolate configuration, a high- isomer built on a prolate 1qp state, and a second excited state characterized by shape coexistence and -mixing.
This paper investigates normal mode analysis in relativistic massive transport by demonstrating how particle mass induces coupling between sound and heat channels, alters the branch cut structure responsible for Landau damping, and leads to non-monotonic dependencies in the critical wavenumbers for collective modes.
This paper introduces a novel qubit mapping strategy for the Variational Quantum Eigensolver that assigns qubits to Slater determinants rather than single-particle states, enabling low-circuit-depth simulations of various nuclei on NISQ devices with errors mitigated by Zero-Noise Extrapolation to achieve less than 4% deviation from shell model predictions.