1159 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 provides a systematic derivation for graduate students and researchers in nuclear physics, transforming the three-body Schrödinger equation from single-particle coordinates to Jacobi and hyperspherical coordinates while explicitly calculating Jacobian determinants and projecting the resulting Faddeev equations onto a hyperspherical harmonics basis to obtain coupled hyperradial equations.
This study demonstrates that future high-precision radius measurements of neutron stars will significantly constrain the hadron-quark phase transition density and related equation of state parameters through Bayesian analysis, yet will remain largely insensitive to the stiffness of quark matter regardless of measurement accuracy.
This paper utilizes an effective theory of dynamic critical phenomena to demonstrate that the photon emission rate near the QCD critical point diverges with the correlation length and follows a universal spectrum, reflecting the nonequilibrium properties of the near-critical liquid.
This paper applies a tractable -matrix model to investigate the nuclear reaction processes, fusion rates, and sticking probabilities of the muonic molecule, specifically analyzing -wave fusion channels and charge symmetry violations in light of recently reported discrepancies in -wave astrophysical factors.
This paper presents a unified framework within the X-SCAPE code that utilizes the SMASH transport model to generate event-by-event initial conditions for hydrodynamic simulations of heavy-ion collisions at finite densities, incorporating a 4D lattice-QCD equation of state and generalized out-of-equilibrium corrections to study conserved charge fluctuations in the Beam Energy Scan program.
This paper validates a time-dependent coupled-cluster theory approach for computing nuclear response functions by demonstrating its accuracy against static frameworks and revealing collective dipole resonances and chaotic behavior in light nuclei under strong electric fields.
Using the Born-Oppenheimer approximation within a dynamical diquark model, this study identifies the states as compact tetraquarks composed of axial-vector diquark pairs, supported by calculated root-mean-square radii significantly smaller than 1 fm.
This study systematically investigates the impact of extending the harmonic oscillator basis from 20 to 50 shells on relativistic nuclear response calculations for various nuclei, revealing significant sensitivity in strength distributions—particularly for low-spin resonances in light neutron-rich systems due to continuum effects—and quantifying the associated statistical and systematic uncertainties.
Using a newly developed quasiparticle finite amplitude method within the deformed relativistic Hartree-Bogoliubov theory in continuum, this study reveals that the low-energy isovector electric dipole response in deformed halo nuclei and is significantly enhanced due to transitions from halo orbitals, manifesting as a soft dipole resonance characterized by an out-of-phase oscillation between the neutron halo and the core.
This paper demonstrates that while background pion-emission processes can significantly modify cross sections in reactions, the Deeply Virtual Compton Scattering excitation of the Roper resonance remains a measurable and valuable tool for extracting nucleon transition Generalized Parton Distributions and probing the internal structure of excited states.