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 introduces a commutant gate that leverages the linear commutant of observed operators to structurally distinguish symmetry-forced degeneracies from accidental level crossings, thereby enabling robust spectral fitting that avoids the singularities and biases inherent in traditional regularization methods.
Using a Bayesian framework with a meta-model equation of state and mock high-precision data, this study investigates how future X-ray and gravitational wave observations of neutron star radii with sub-0.1 km accuracy will constrain the fine-features of dense matter, including hadronic and quark phases and their transition.
This paper presents the first electroexcitation amplitudes for nucleon resonances in the third resonance region, derived from electroproduction cross sections measured by the CLAS detector, which successfully extract electrocouplings for established states like and , provide new data for and at GeV, and reveal evidence for a new state.
This paper introduces SU3HOB-cgvcs, a Fortran 2008 package that computes general Talmi–Moshinsky harmonic-oscillator transformation brackets in the SU(3) basis by leveraging isofactors from the external Su3cgvcs library, while implementing necessary phase corrections and analytical fixes to achieve machine-precision agreement with established codes.
This paper presents a method for solving the Discretized Light-Cone Quantization Hamiltonian in 2D theory by incorporating perturbative zero-mode corrections, which significantly accelerates numerical convergence and reduces computational costs to achieve a precise critical coupling of using a much smaller basis space.
Using the relativistic mean-field framework with the TW99 parametrization, this study demonstrates that the inclusion of strange mesons (sigma-star and phi) softens the equation of state for massive proto-neutron stars, thereby reducing their maximum mass and radius while significantly decreasing the moment of inertia only for the most massive configurations (around 2.7 solar masses).
This paper investigates the photoproduction of the fully-charmed tetraquark state off nuclei near the kinematic threshold using a collision model, demonstrating that specific observables like excitation functions and transparency ratios are sensitive to its internal structure (compact tetraquark, molecular, or mixed) and can thus help determine its nature in future experiments at electron-ion colliders.
This paper analytically demonstrates that in anisotropic Gubser flow, the experimentally observed sign of longitudinal spin polarization arises from the interplay between thermal vorticity and thermal shear, with the specific outcome heavily dependent on the choice of reference unit vector formulation and the dominance of acceleration effects leading to cancellations.
This resource paper provides AMO experimentalists with a qualitative guide on identifying practical isotopes with enhanced nuclear Schiff moments to support the search for time-reversal breaking effects in atomic and molecular EDM measurements.
This paper introduces novel chiral low-resolution interactions that accurately describe bulk properties across the nuclear chart from O to Pb, enabling precise predictions of neutron skins in neutron-rich nuclei with specific sensitivities for extreme, experimentally unexplored cases.