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.

Mechanisms of high energy polarized photoproduction of πΔ++\pi^{-}\Delta^{++}

This paper presents a Regge exchange model analysis of high-energy polarized πΔ++\pi^-\Delta^{++} photoproduction data from GlueX and SLAC, using spin density matrix elements to constrain helicity amplitudes and providing the first extractions of several meson-nucleon-delta coupling constants.

Vanamali Shastry, Łukasz Bibrzycki, Vincent Mathieu, Glòria Montaña, Alessandro Pilloni, César Fernández-Ramírez, Robert J. Perry, Arkaitz Rodas, Adam P. Szczepaniak, Daniel Winney2026-04-27⚛️ nucl-th

Neutron star evolution with the Bemfica-Disconzi-Noronha-Kovtun viscous hydrodynamics framework

This paper presents the first non-linear numerical simulation of spherically symmetric neutron stars using the causal and stable BDNK viscous hydrodynamics framework under the Cowling approximation, demonstrating stable evolutions and analyzing quasi-normal mode frequencies as a foundational step toward fully consistent astrophysical models.

Harry L. H. Shum, Fernando Abalos, Yago Bea, Miguel Bezares, Pau Figueras, Carlos Palenzuela2026-04-24⚛️ nucl-th

Impact of octupole deformation on the nuclear electromagnetic response

This study investigates the impact of octupole deformation on nuclear electromagnetic responses using linear response theory and finds that while the deformation has only a modest effect on resonance transition strengths, M1M1 strengths are significantly enhanced at low energies and isoscalar E3E3 responses require the removal of the rotational Nambu–Goldstone mode for accurate analysis.

Manu Kanerva, Markus Kortelainen2026-04-24⚛️ nucl-th

Systematic VQE Benchmarking of the Deuteron, Triton, and Helium-3 within Lattice Pionless Effective Field Theory

This paper benchmarks Variational Quantum Eigensolver (VQE) algorithms against classical exact diagonalization for the deuteron, triton, and helium-3 nuclei within lattice pionless effective field theory, demonstrating that noiseless simulations achieve high accuracy while also quantifying the impact of realistic hardware noise on variational energy estimation.

Pınar Çifci, Serkan Akkoyun2026-04-24⚛️ nucl-th