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.

Gorkov algebraic diagrammatic construction for infinite nuclear matter

This paper introduces a novel many-body truncation for Gorkov self-consistent Green's function theory that combines first-order pairing correlations with third-order particle-number-conserving dynamical correlations to accurately predict the equation of state and spectral properties of infinite nuclear matter using modern chiral effective field theory Hamiltonians.

Francesco Marino, Carlo Barbieri, Gianluca Colò2026-03-18⚛️ nucl-th

Polarization-dependent mass modifications of ϕ\phi meson with finite momentum in nuclear matter

This paper investigates the in-medium properties of the ϕ\phi meson with finite momentum in nuclear matter, revealing that while transverse polarization mass shifts remain momentum-independent, longitudinal shifts decrease quadratically with momentum due to specific vector mean-field and derivative interactions, offering new predictions for upcoming experiments at J-PARC.

Ahmad Jafar Arifi, Philipp Gubler, Kazuo Tsushima2026-03-18⚛️ nucl-th

Exploring Intruder Levels of Nuclei (96Zr, 98Zr, 98MO) Within the Framework of IBM-2 Model

This study utilizes the Interacting Boson Model-2 (IBM-2) to successfully investigate the rare intruder nuclear levels in 96Zr^{96}\text{Zr}, 98Zr^{98}\text{Zr}, and 98Mo^{98}\text{Mo}, attributing their anomalous positions to double subshell closures and demonstrating strong agreement between theoretical predictions and experimental data for various transition rates.

Zainab S. M., Ali N. Sabbar, Ali Mahdi Abdul Hussein2026-03-17⚛️ nucl-th

Tensor-polarized twist-3 parton distribution functions fLT(x)f_{LT}(x) for the spin-1 deuteron by using twist-2 relations

This paper calculates the tensor-polarized twist-3 parton distribution function fLT(x)f_{LT}(x) for the spin-1 deuteron by applying twist-2 relations to the known twist-2 function f1LL(x)f_{1LL}(x), demonstrating that fLT(x)f_{LT}(x) is comparable in magnitude to f1LL(x)f_{1LL}(x) and suggesting that current and future facilities like JLab and the EIC are well-suited to investigate these higher-twist effects.

S. Kumano, Kenshi Kuroki2026-03-17⚛️ hep-lat

Energy-momentum tensor form factor D(t) of proton and neutron

This paper constructs a neutron model analogous to a classical proton model to demonstrate that, despite electromagnetic-induced divergences at extremely small momentum transfers, the energy-momentum tensor form factor D(t)D(t) of protons and neutrons remains practically indistinguishable across experimentally accessible ranges, thereby accurately explaining the nucleon mass difference and reproducing lattice QCD data.

Andrea Mejia, Peter Schweitzer2026-03-17⚛️ nucl-th