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.

Analysis of correlations between dipole transitions 1101+1^-_1\rightarrow 0^+_1 and 3121+3^-_1\rightarrow 2^+_1 based on the collective model

This paper uses a phenomenological collective model to demonstrate that the coupling of isovector dipole modes (giant dipole resonance) to quadrupole and octupole modes decreases the B(E1;1101+)/B(E1;3121+)B(E1;1^-_1\rightarrow 0^+_1)/B(E1;3^-_1\rightarrow 2^+_1) ratio below the 7/3 value predicted by pure quadrupole-octupole models.

R. V. Jolos, E. A. Kolganova2026-02-11⚛️ nucl-th

Mean-field proton-neutron pairing correlations with the Gogny D1S energy density functional

This paper investigates proton-neutron pairing correlations using the Gogny D1S functional within a generalized Hartree-Fock-Bogoliubov framework, finding that the functional exhibits numerical instabilities in large single-particle spaces and that self-consistent energy minima in $sd$-shell nuclei correspond to vanishing proton-neutron pairing.

Miguel de la Fuente, Tomás R. Rodríguez, Luis M. Robledo, Benjamin Bally, Nathalie Pillet2026-02-11⚛️ nucl-th

Three-Body Barrier Dynamics of Double-Alpha Decay in Heavy Nuclei

By modeling double-α\alpha decay as a three-body problem using hyperspherical coordinates and random potential sampling, this study identifies a linear relationship between the penetrability ratio and ZQαα1/2ZQ_{\alpha\alpha}^{-1/2} and proposes several heavy nuclei as primary candidates for observing this rare decay mode.

Shulin Tang, Tao Wan, Yibin Qian, Chong Qi, Ramon A. Wyss, Roberto J. Liotta, Dong Bai, Bo Zhou, Zhongzhou Ren2026-02-11⚛️ nucl-ex