1422 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 utilizes realistic internucleon forces, particularly tensor forces, to describe nuclei with by modeling them as clusters of subsystems with specific orbital momenta, thereby explaining phenomena like the Be lifetime and the Hoyle state while rejecting the concept of a "power center" in favor of a cluster-based approach.
This paper extends the microscopic calculation of shear viscosity in graphene electron fluids to finite magnetic fields using kinetic theory, revealing that the magnetic field induces anisotropy resulting in five independent viscosity coefficients, with significant suppression of perpendicular and parallel components and maximized Hall effects occurring at specific field strengths that vary across non-relativistic, relativistic graphene, and ultra-relativistic quark fluid systems.
This paper presents the first complete next-to-leading-order calculation of BFKL impact factors for the hadroproduction of specific NRQCD quarkonium states by combining virtual corrections with real-emission contributions, demonstrating the cancellation of soft divergences and the compatibility of surviving collinear singularities with factorization to enable future next-to-leading-logarithmic precision studies.
This paper employs Light-Front Hamiltonian Effective Field Theory with non-perturbative multi-pion contributions to demonstrate that higher-order Fock components are crucial for accurately describing nucleon flavor asymmetry and to establish a unified framework for investigating similar nuclear effects in light nuclei like the deuteron.
Using an effective Lagrangian approach calibrated to existing data, this study successfully reproduces the production cross sections of high-spin and mesons in reactions and predicts measurable, forward-peaked production rates for their partners, suggesting their feasibility for observation in future meson-beam experiments.
This study demonstrates the first observation of robust, coherent non-Abelian hadron dynamics on a noisy 156-qubit quantum processor by simulating a 60-site SU(2) lattice gauge theory using a hardware-efficient encoding, successfully capturing meson propagation and breathing modes while outperforming classical approximation methods in the weak-coupling regime.
Using nuclear lattice effective field theory with high-fidelity chiral interactions, this study successfully reproduces the ground-state parity inversion and halo structure of Be, revealing that the valence neutron occupies a molecular orbital which enhances prolate deformation and creates a diffuse neutron tail distinct from the -orbital occupation in Be.
This paper develops a universal effective field theory for the low-energy surface oscillations of self-bound superfluid droplets, deriving the normal-mode eigenfrequencies, identifying a critical instability for the breathing mode, and quantizing the resulting ripplons to describe multi-ripplon states in systems like Bose mixtures.
This paper demonstrates that Coulomb breakup cross sections for the one-neutron halo nucleus Be are insensitive to spectroscopic factors when the asymptotic normalization coefficient is fixed, as confirmed by new calculations using a coupled-channel effective particle-rotor model that accounts for core excitation.
This paper critically examines a recent analysis claiming evidence for a QCD critical end point via finite-size scaling of net-proton cumulants, highlighting methodological issues regarding acceptance windows, multiplicity scaling, and thermodynamic fields that must be addressed for a consistent interpretation.