1634 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 an improved, finite-sum expression for the partial-wave projection of the one-particle exchange process in relativistic three-body scattering of massive, spinless particles, which accurately reproduces known physical properties while significantly enhancing computational efficiency for constructing robust amplitude analyses.
Using the conventional spherical shell model and the new triaxial projected shell model, this study calculates M1 and E2 gamma strength functions across various isotopes to reveal that deformation-induced splitting and fragmentation of single-particle multiplets generate a bimodal low-energy magnetic radiation structure comprising the scissors resonance and the LEMAR spike.
This paper presents a systematic study of extended sets of E2 matrix elements for various nuclides using the Triaxial Projected Shell Model, successfully accounting for experimental energies and both intra- and inter-band transition properties.
This paper introduces generalized thermodynamic relations into relativistic perfect spin hydrodynamics to ensure a consistent treatment of spin degrees of freedom based on microscopic calculations, thereby establishing a foundation for unifying different formulations and incorporating dissipative corrections.
This paper investigates nonlocal nucleon-nucleus optical potentials derived from chiral effective field theory using the Perey-Buck ansatz, revealing that spatial nonlocality primarily drives the energy dependence of the real potential while time nonlocality governs the imaginary potential, and presents results for calcium isotopes showing how Woods-Saxon parameters vary with isotopic number.
This paper presents an improved formula for the Wigner function and spin polarization of fermions emitted from a decoupling relativistic fluid by introducing a new expansion method that captures geometric dependencies in the spin-shear term and naturally justifies the isothermal condition without prior assumptions.
This paper demonstrates that transverse momentum conservation is the dominant mechanism causing the breakdown of azimuthal correlation factorization in small systems, quantitatively explaining CMS p-Pb data and establishing a sign rule where deviations from unity alternate based on harmonic order, thereby necessitating the subtraction of this kinematic effect to isolate genuine flow fluctuations.
This paper provides a theoretical review of recent progress in understanding the bulk properties of the quark-gluon plasma and the production of light and strange hadrons in heavy-ion collisions, emphasizing the central role of relativistic hydrodynamics and improved constraints on initial states and transport properties.
This paper demonstrates that the accuracy of the Lorentz Integral Transform method for calculating quantum response functions can be significantly improved by utilizing better-conditioned complex Stieltjes and double-pole kernels, which reduce noise-induced scatter by factors of 2–4 compared to the standard Lorentzian kernel.
This paper develops an effective kinetic theory using the Boltzmann-Vlasov equation to demonstrate that time-dependent magnetic fields during the pre-equilibrium stage of heavy-ion collisions suppress the growth of transverse-to-longitudinal pressure anisotropy and induce a non-monotonic early-time response in gluon pressure, though full isotropization is not achieved without including collisions.