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.

Probing Jet-Medium Interactions in Heavy-Ion Collisions Using Energy-Energy Correlators

This paper proposes an augmentation method utilizing momentum conservation in γ\gamma-jet events to correct for jet-medium interaction effects in Energy-Energy Correlators (EECs) within heavy-ion collisions, thereby enabling a more precise extraction of jet shower dynamics and providing a novel tool to test QGP energy loss scenarios.

Rushil Saraswat, Aditya Prasad Dash, Huan Zhong Huang, Gang Wang, Xin-Nian Wang, Zhong Yang2026-05-12⚛️ nucl-th

Modeling Λ\Lambda polarization in Au++Au collisions at sNN=200\sqrt{s_{\rm NN}}=200 GeV using relativistic spin hydrodynamics

This paper employs a novel (1+1+2)(1+1+2)D ideal relativistic spin hydrodynamics model incorporating transverse flow and longitudinal spin acceleration to successfully reproduce experimental Λ\Lambda hyperon polarization data in Au+Au collisions at sNN=200\sqrt{s_{\rm NN}}=200 GeV and predicts the yet-unmeasured in-plane transverse spin polarization.

Matteo Buzzegoli, Aleksandar Gecic, Rajeev Singh2026-05-12⚛️ nucl-th

Charge radii of Cl isotopes from x-ray spectroscopy of muonic atoms

Using high-precision x-ray spectroscopy of muonic chlorine atoms combined with advanced theoretical calculations, researchers determined the charge radii of stable 35^{35}Cl and 37^{37}Cl isotopes with an order-of-magnitude improvement in precision, resolving previous discrepancies in mirror nuclei trends and establishing new reference values for future studies.

K. A. Beyer, T. E. Cocolios, C. Costache, P. Demol, M. Deseyn, A. Doinaki, O. Eizenberg, M. Gorchtein, M. Heines, A. Herzáň, P. Indelicato, K. Kirch, A. Knecht, R. Lică, V. Matousek, E. A. Maugeri, B. (…)2026-05-12⚛️ nucl-ex

Non-Parametric Equation of State Reveals Non-Conformal Behavior Beyond Neutron Star Densities

This paper proposes a non-parametric equation of state that reveals non-conformal behavior beyond neutron star densities, characterized by an early stiffening followed by extended softening to satisfy observational and theoretical constraints, thereby providing evidence for a hadron-quark phase transition in the cores of massive neutron stars.

Yong-Jia Huang, Shao-Peng Tang, Yi-Zhong Fan2026-05-12⚛️ nucl-th

Light-front Hamiltonian jet evolution in the Glasma

This paper develops a light-front Hamiltonian formalism using the time-dependent Basis Light-Front Quantization framework to simulate the real-time quantum evolution of a high-energy quark in the Glasma, successfully computing transverse momentum broadening and the jet quenching parameter while demonstrating consistency with classical estimates and providing a foundation for future systematic improvements.

Dana Avramescu, Carlos Lamas, Tuomas Lappi, Meijian Li, Carlos A. Salgado2026-05-12⚛️ nucl-th

RG-Consistent (P)NJL Model: Impact of Thermal Cutoff Modifications on Thermodynamics and Net-Baryon Number Fluctuations

This paper investigates how implementing a temperature-dependent thermal cutoff to ensure renormalization group consistency in RGNJL and RGPNJL models resolves causality violations, improves convergence to the Stefan-Boltzmann limit, and enhances the description of net-baryon number fluctuations compared to lattice QCD data, while revealing complex sensitivities in the PNJL framework at high baryon densities.

Jie Tang, Fan Lin, Xinyang Wang2026-05-12⚛️ nucl-th

Ξ\Xi-deuteron low-energy ss-wave phase shifts and momentum correlation functions in Faddeev formulation

This paper investigates low-energy Ξ\Xi-deuteron scattering using the Faddeev formulation with three different Ξ\Xi-nucleon interaction models, presenting ss-wave phase shifts and momentum correlation functions to demonstrate how deuteron breakup effects and prospective experimental data can refine the understanding of ΞN\Xi N interactions.

M. Kohno, H. Kamada2026-05-11⚛️ nucl-th