930 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 Non-relativistic QCD within the Generalized Parton Distribution framework to calculate large relativistic corrections for exclusive near-threshold vector quarkonium photoproduction, revealing a breakdown of the GPD moment expansion for and the presence of endpoint divergences away from the threshold regime.
This paper establishes the strongest current constraints on millicharged particles with masses between 0.7 and 2 MeV by identifying overlooked -cascade sources in nuclear reactors and deriving new limits from electron recoil data, while also assessing sensitivity from solar production in low-threshold dark matter experiments.
This paper presents an updated extraction of unpolarized quark transverse momentum distributions in the pion by incorporating a more comprehensive treatment of theoretical uncertainties and, for the first time, investigating flavor-dependent differences using all available unpolarized pion-nucleus Drell-Yan data.
This paper proposes that an enhanced isovector tensor coupling within covariant density-dependent point-coupling energy density functionals naturally induces a strong isovector spin-orbit interaction, offering a relativistic mechanism to simultaneously resolve the tensions between PREX-II and CREX parity-violating electron scattering data while maintaining accurate descriptions of nuclear properties.
The ALICE Collaboration presents the first measurements of -tagged jet angularities in proton-proton collisions at TeV, providing evidence for the QCD dead-cone effect by demonstrating that charm-quark-initiated jets exhibit suppressed collinear radiation compared to inclusive jets, thereby establishing a crucial baseline for future heavy-ion studies.
This paper presents a comprehensive study of hybrid stars composed of hadrons, leptons, and quarks within a relativistic mean-field framework, utilizing QCD sum rule-derived coupling constants to construct equations of state for both hadronic and quark phases and subsequently predicting mass-radius relations, tidal deformabilities, and particle distributions for comparison with multimessenger astrophysical observations.
This study demonstrates that in Energy-Momentum Squared Gravity, the trace anomaly of dense matter continues to organize the interior curvature profiles of neutron stars into systematic bands similar to General Relativity, despite the theory's nonlinear coupling between matter and geometry.
This paper presents a global Bayesian analysis using a Color Glass Condensate framework and Gaussian-process emulators to demonstrate that correcting for electromagnetic dissociation effects in LHC data resolves previous tensions between proton and nuclear datasets, enabling a consistent simultaneous description of coherent and incoherent diffractive J/ψ photoproduction in both γ+p and γ+Pb collisions.
This paper proposes a solution to the long-standing gallium anomaly by revising the theoretical calculation of the neutrino capture cross-section on Ga, demonstrating that moving beyond standard leptonic wave function factorization and incorporating constrained Gamow-Teller transition densities can resolve the observed deficit without invoking new physics.
This paper demonstrates that a nonequilibrium freeze-out approach using Lagrange parameters naturally accounts for the universal and variable heavy r-process element abundance patterns observed in stars, offering a tool to identify potential sources of heavy element formation such as early Universe density fluctuations.