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.

⚛️ nuclear theory

Hybrid Stars with Post-Merger Rotation Profiles

This study demonstrates that differential rotation in hybrid stars with a first-order deconfinement phase transition can support unique quasi-toroidal configurations with ring-shaped quark cores, while revealing a degeneracy in rotational profiles between models with and without phase transitions that necessitates multi-messenger observations for differentiation.

Kalin V. Staykov, Violetta Sagun, Lorenzo Cipriani, Daniela D. Doneva, Stoytcho S. Yazadjiev2026-06-17
⚛️ nuclear experiments

Observation of a dominant 0f7/2\boldsymbol{0f_{7/2}} neutron configuration in the 32\boldsymbol{^{32}}Si Jπ=5\boldsymbol{J^{\pi}=5^-} isomeric state

This study confirms that the Jπ=5J^{\pi}=5^- isomeric state in 32^{32}Si possesses a dominant single-neutron ν0f7/2\nu0f_{7/2} configuration and reveals that the hindrance of its decay to the 33^- state arises from a lack of participation by both protons and neutrons rather than differences in neutron structure overlap.

C. R. Hoffman, G. L. Wilson, J. Chen, B. P. Kay, T. L. Tang, S. R. Carmichael, M. Gott, S. Lesher, M. S. Martin, G. E. M (…)2026-06-17
⚛️ nuclear theory

Generalized relativistic second order magnetohydrodynamics: A correlation function approach using Zubarev's nonequilibrium statistical operator

This paper constructs a generalized second-order relativistic magnetohydrodynamics framework using Zubarev's nonequilibrium statistical operator to derive all dissipative tensors and Kubo formulas for a parity- and charge-conjugation-symmetric magnetized plasma, while extending the formalism to include nonlocal contributions.

Abhishek Tiwari, Binoy Krishna Patra2026-06-16
⚛️ nuclear experiments

Electric dipole strength in $sd$-shell nuclei from small-angle proton scattering

This study presents new total photoabsorption cross sections for several N=ZN=Z $sd$-shell nuclei derived from small-angle 295 MeV proton scattering, comparing the results with artificial neural network predictions and configuration-interaction shell-model calculations to validate the latter's ability to describe fragmented electric dipole strength for applications in ultrahigh-energy cosmic ray research.

R. W. Fearick, O. Le Noan, H. Matsubara, P. von Neumann-Cosel, K. Sieja, A. Tamii2026-06-16