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.

Collective effects in O-O and Ne-Ne collisions at sNN\sqrt{s_{\mathrm{NN}}}=5.36 TeV from a hybrid approach

This study employs a hybrid approach alongside pure hadronic and string models to predict collective effects in upcoming O-O and Ne-Ne collisions at the LHC, aiming to determine the onset of quark-gluon plasma formation in small collision systems by comparing hydrodynamic and non-hydrodynamic evolutions.

Lucas Constantin, Niklas Götz, Carl B. Rosenkvist, Hannah Elfner2026-05-14⚛️ nucl-th

Universal Relations with Dynamical Tides

This paper establishes new quasi-universal relations between static and dynamical tidal deformabilities of neutron stars that remain robust across diverse equations of state, thereby providing a simplified framework for incorporating dynamical tidal effects into gravitational-wave modeling while demonstrating that a one-mode approximation outperforms Taylor expansions in capturing the frequency-dependent response.

Jayana A. Saes, Abhishek Hegade K. R., Nicolás Yunes2026-05-14⚛️ nucl-th

Bayesian inferences on covariant density functionals from multimessenger astrophysical data: Influences of parametrizations of density dependent couplings

This study employs a Bayesian framework with multimessenger astrophysical data to demonstrate that while different parametrizations of density-dependent couplings in covariant density functionals yield broadly similar inferences, the specific functional forms significantly impact the equation of state and symmetry energy at suprasaturation densities, necessitating extended flexibility in the isovector channel up to the curvature coefficient KsymK_{sym} for accurate modeling.

Guo-Jun Wei, Jia-Jie Li, Armen Sedrakian, Yong-Jia Wang, Qing-Feng Li, Fu-Hu Liu2026-05-14⚛️ nucl-th

Jet Momentum Broadening in Viscous QCD Matter: A Moment Expansion Approach

This paper formulates out-of-equilibrium jet momentum broadening in QCD effective kinetic theory using a moment expansion to explicitly derive a leading-order correction to the spatial broadening tensor controlled by the medium's shear-stress tensor, thereby establishing a direct link between kinetic theory and event-by-event viscous hydrodynamic simulations for heavy-ion collisions.

Isabella Danhoni, Nicki Mullins, Jorge Noronha2026-05-14⚛️ hep-ph

Anomalous large-angle α\alpha-scattering in a single-folding model with microscopic densities

This paper demonstrates that anomalous large-angle α\alpha-scattering in $sd$-shell N=ZN=Z nuclei can be reasonably well reproduced within a single-folding model by utilizing microscopic nuclear densities from relativistic and non-relativistic mean-field theories combined with a unified, mass-dependent α\alpha-nucleon interaction.

A. -G. Serban, F. Salvat-Pujol, N. Sandulescu, P. Marević2026-05-14⚛️ nucl-th

Constraining hot and cold nuclear matter properties from heavy-ion collisions and deep-inelastic scattering

This paper presents a global analysis combining deep-inelastic scattering and heavy-ion collision data within a saturation-based QCD framework to constrain the early-time shear viscosity to entropy density ratio (η/s\eta/s) of the quark-gluon plasma.

Anton Andronic, Nicolas Borghini, Xiaojian Du, Christian Klein-Bösing, Renata Krupczak, Hendrik Roch, Sören Schlichting2026-05-13⚛️ nucl-th

Glauber quark and gluon contributions to quark energy loss at next-to-leading order and next-to-leading twist

This paper computes all possible medium-induced single-scattering emission kernels for an energetic virtual quark traversing a nuclear environment at next-to-leading order and next-to-leading twist, incorporating heavy-quark mass effects, Glauber quark and gluon interactions, and coherence effects to derive four distinct collisional scattering kernels with full phase factors and gradient expansions.

Amit Kumar, Gojko Vujanovic2026-05-13⚛️ nucl-ex