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

A Data-Driven Model for rr-Process Production Patterns

This paper presents a data-driven model explaining rr-process production patterns in metal-poor stars as mixtures of two distinct components, suggesting that Pattern 2 arises from regular neutron star mergers while Pattern 1 results from a superposition of various events, thereby offering new theoretical insights into stellar classification and highlighting the need for further observational verification.

Chen-Qi Li, Yong-Zhong Qian, Axel Gross, Zewei Xiong2026-09-02
⚛️ nuclear theory

Investigating three-body resonances in ααΩ/Ωccc\alpha\alpha\Omega/\Omega_{ccc} clusters within the Ω/Ωccc9Be^{9}_{\Omega/\Omega_{ccc}}{\mathrm{Be}} nucleus

Using the Gaussian expansion and complex scaling methods with interactions derived from lattice QCD, this study predicts that the Ω\Omega baryon induces deeply bound, contracted states in Ω9Be^{9}_{\Omega}\mathrm{Be} due to strong attraction, whereas the Ωccc\Omega_{ccc} baryon yields only weakly bound or resonant states in Ωccc9Be^{9}_{\Omega_{ccc}}\mathrm{Be}, highlighting their distinct "gluelike" behaviors in exotic hypernuclei.

Hao Zhou, Xiang Liu2026-09-02
⚛️ nuclear theory

The Radius of the Neutron Star PSR J0614-3329 from NICER Data

This paper presents a NICER-based analysis of the neutron star PSR J0614-3329 that derives an equatorial circumferential radius of 9.88–12.77 km using a three-hot-spot model, while noting challenges in jointly fitting NICER and XMM-Newton data and discussing the resulting constraints on dense matter properties.

M. C. Miller, A. J. Dittmann, I. M. Holt, F. K. Lamb, C. Chirenti, Z. Arzoumanian, J. Berteaud, S. Bogdanov, K. C. Gendr (…)2026-09-02
⚛️ nuclear experiments

Fundamental geometric limitations on disentangling nuclear-surface properties in relativistic heavy ion collisions

This paper demonstrates that the extraction of nuclear surface diffuseness from relativistic heavy ion collisions is fundamentally limited by strong geometric degeneracies between the surface parameter and intrinsic nuclear deformations, though multiparticle triangular correlations offer a more independent pathway to constrain these properties.

Hadi Mehrabpour, Behnaz Behzadmoghaddam, S. M. A. Tabatabaee Mehr, Oscar Garcia-Montero, Li Yan2026-09-02
⚛️ nuclear experiments

Locating the QCD critical point with finite-size scaling of proton cumulants

This paper analyzes net-proton cumulants in Au+Au collisions using finite-size scaling to identify a potential QCD critical point near μB700\mu_B \approx 700 MeV, but concludes that while the observed scaling patterns are consistent with criticality, they are not yet definitive evidence due to similar behaviors arising from non-critical dynamical simulations and experimental acceptance effects.

Agnieszka Sorensen, Paul Sorensen2026-09-01