1401 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 study investigates the low-lying excitations of the odd-odd nucleus Pm using proton-induced reactions and -ray spectroscopy to establish a new level scheme with 15 new levels, determine tentative spin-parity assignments and lifetimes, and interpret the results through large basis and projected shell model calculations, revealing a ground state, a nearby state, and a low-lying isomer.
This paper presents a validated simulation-based inference framework using neural posterior estimation to rapidly and accurately constrain relativistic mean-field parameters for neutron-star equations of state, achieving results consistent with traditional nested sampling while enabling superfast exploratory analysis without retraining.
This paper presents the first fully consistent shell-model calculation of neutrinoless double-beta decay matrix elements for 48Ca, 76Ge, and 82Se, deriving both the nuclear Hamiltonian and decay operators from chiral perturbation theory via many-body perturbation theory while also assessing convergence and theoretical uncertainties.
This paper presents the first complete numerical solution to the BDMPS-Z equations for in-medium QCD splittings, providing a precise determination of splitting functions that goes beyond standard soft, large-, and harmonic-oscillator approximations by incorporating finite-energy effects, subleading-color contributions, and realistic parton-medium interactions.
Motivated by the proposed NuDoubt++ experiment, this paper analyzes positron-emitting and electron-capturing double-beta decay in candidate isotopes Kr, Cd, and Xe by providing nuclear matrix elements and phase-space factors for both standard and neutrinoless modes, demonstrating that these processes can probe lepton-number-violating new physics at scales of 1–100 TeV and resolve operator degeneracies when combined with conventional double-beta decay searches.
This paper demonstrates that the Kogut-Susskind Hamiltonian emerges as the infinite scalar mass limit of the more efficient orbifold lattice formulation, thereby resolving implementation challenges and enabling digital quantum simulations of SU() Yang-Mills theories with exponential speedup over classical and prior quantum methods.
This paper demonstrates that the curvature of the freeze-out hypersurface in relativistic heavy-ion collisions induces a nonzero tensor spin polarization in massive vector bosons, with the effect becoming significantly stronger in smaller collision systems like central O-O collisions, thereby offering a potential geometric probe for spin-alignment measurements.
This study employs the dynamical hadronization technique within the functional renormalization group approach to two-flavor QCD to derive low-energy constants for the pion, -meson, and scalar diquark from first principles, thereby providing microscopic constraints for models of dense quark matter and color superconductivity.
This paper demonstrates that requiring a causal, stable, and thermodynamically consistent extension of neutron-star equations of state to higher densities strongly disfavors purely nucleonic models and supports the presence of additional degrees of freedom in massive stable neutron stars.
This paper investigates how track functions, which encode the flow of energy from partons to charged hadrons, are modified by the quark-gluon plasma in heavy-ion collisions, demonstrating that their non-linear evolution and higher moments can discriminate between different jet quenching models and provide a direct test of quantum field theory predictions within the medium.