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.

Dependence of two-particle azimuthal correlations on the forward rapidity gap width in pPb collisions at sNN\sqrt{s_\mathrm{NN}} = 8.16 TeV

This paper investigates the dependence of two-particle azimuthal correlations on the forward rapidity gap width in 8.16 TeV pPb collisions to determine if collective flow signatures persist in events enriched with photon-lead and pomeron-lead interactions, comparing the results against previous measurements and modern event generators.

CMS Collaboration2026-06-02⚛️ nucl-ex

Proton High-Order Cumulants in Au+Au Collisions at High Baryon Density from JAM with a Centrality-Independent Framework

This study utilizes the JAM model and a novel Centrality-Independent Genuine Cumulant Analysis (CIGAR) framework to systematically analyze higher-order proton cumulants in Au+Au collisions at high baryon densities, providing a dynamic non-critical baseline essential for the search for the QCD critical point.

Yongcong Xu, Zhaohui Wang, Yu Zhang, Xiaofeng Luo2026-06-02⚛️ nucl-ex

Coupled nuclear and leptonic longitudinal collective modes in neutron star matter : a covariant Vlasov approach

Using a covariant relativistic Vlasov approach within relativistic mean-field models, this study demonstrates that strong coupling between nuclear and leptonic (electron and muon) plasmon modes in neutron star matter can significantly alter the onset and character of nuclear collective excitations.

Aziz Rabhi, Olfa Boukari, Sidney S. Avancini, Constança Providência2026-06-02⚛️ nucl-th

Three- and four-boson systems expanded around the unitarity limit: Application to 4^4He

This paper applies Short-Range Effective Field Theory expanded around the unitarity limit to study three- and four-boson systems, demonstrating that the binding energies and radii of 4^4He clusters can be accurately described by universal discrete scale invariance with only small perturbative corrections for finite scattering length, effective range, and four-body forces.

Feng Wu, Xincheng Lin, Ubirajara van Kolck, Sebastian König2026-06-02⚛️ nucl-th

Quantum dominance of coherent bremsstrahlung in \isotope[124]Sn+\isotope[124]Sn\isotope[124]{Sn} + \isotope[124]{Sn} scattering at 25 MeV/u

This paper presents quantum-mechanical calculations demonstrating that coherent bremsstrahlung emission overwhelmingly dominates over incoherent emission in 124^{124}Sn+124^{124}Sn scattering at 25 MeV/u, a behavior that contrasts sharply with proton-nucleus collisions and reveals a new quantum regime for studying coherent effects in heavy-ion reactions.

Sergei~P. ~Maydanyuk (Southern Center for Nuclear-Science Theory, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine), Ju-Jun Xie (Southern Center for Nuclear (…)2026-06-02⚛️ nucl-th

Azimuthal decorrelation in diffractive dijet production

This paper calculates the azimuthal angular decorrelation of diffractive dijets in ultra-peripheral heavy-ion, $ep$, and $eA$ collisions using all-order resummation of soft gluon emissions to demonstrate that this observable serves as a promising probe for non-perturbative diffractive transverse momentum-dependent distributions, with numerical predictions provided for LHC, HERA, and the future EIC.

Ding Yu Shao, Yu Shi, Cheng Zhang, Jian Zhou, Ya-jin Zhou2026-06-02⚛️ nucl-th

Quantum Symmetry Restoration and Emergent Effective Deformation in Relativistic Heavy-Ion Collisions

This paper establishes a microscopic framework demonstrating that rotational symmetry restoration in relativistic heavy-ion collisions acts as a geometric low-pass filter that exponentially suppresses effective deformation modes, thereby reconciling the use of classically deformed geometries with the rotationally invariant quantum ground states of even-even nuclei.

Hao-jie Xu, Qun Wang2026-06-02✓ Author reviewed ⚛️ nucl-th