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.

Proton induced reactions on 118Sn target at energies up to 18 MeV

This study investigates proton-induced reactions on an enriched 118Sn target up to 18 MeV using the stacked-foil activation technique, reporting first-time cross-section measurements for specific channels and revealing discrepancies between experimental data and theoretical models regarding composite-particle emission.

G. H. Hovhannisyan, N. S. Gharibyan, T. M. Bakhshiyan, A. R. Balabekyan, S. V. Gaginyan, G. V. Martirosyan, A. Manukyan, R. K. Dallakyan, A. Aprahamian2026-04-22⚛️ nucl-ex

Theoretical estimates for the synthesis of Z=119Z=119 superheavy nuclei with Ca, Ti, V, and Cr projectiles: effects of reaction QQ values and mass-model dependence

This paper theoretically estimates the evaporation-residue cross sections for synthesizing superheavy nuclei with Z=119Z=119 using Ca, Ti, V, and Cr projectiles via a hybrid fusion framework, revealing that reaction QQ values relative to Coulomb barriers and significant nuclear mass-model uncertainties are the primary factors governing the survival probability and resulting cross sections.

K. Kawai, Y. Aritomo, K. Nakajima, S. Takagi, N. Nishimura2026-04-22⚛️ nucl-th

Probing the neutron-skin thickness through J/ψJ/\psi photoproduction in ultra-peripheral collisions

This study demonstrates that the neutron-skin thickness in ultra-peripheral 208Pb+208Pb^{208}\mathrm{Pb}+{}^{208}\mathrm{Pb} collisions significantly influences J/ψJ/\psi photoproduction by suppressing coherent cross sections at large momentum transfer while enhancing incoherent ones, thereby establishing the ratio of incoherent to coherent cross sections as a robust observable for constraining neutron-skin thickness and transverse gluon distributions.

Haoyuan Li, Lu-Meng Liu, Jinhui Chen, Yu-Gang Ma, Chunjian Zhang2026-04-22⚛️ nucl-ex

Controlled Gate Networks: Theory and Application to Eigenvalue Estimation

This paper introduces controlled gate networks, a quantum circuit design strategy that significantly reduces the number of two-qubit gates required for linear combinations of unitary operators, and demonstrates its effectiveness in variational calculations, eigenvalue estimation via the rodeo algorithm, and lattice nucleon time evolution through both theoretical analysis and experimental implementation on real quantum hardware.

Max Bee-Lindgren, Zhengrong Qian, Matthew DeCross, Natalie C. Brown, Christopher N. Gilbreth, Jacob Watkins, Xilin Zhang, Dean Lee2026-04-21⚛️ nucl-th