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

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
⚛️ nuclear theory

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
⚛️ nuclear theory

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 Sc (…)2026-06-02
⚛️ nuclear theory

Azimuthal decorrelation in diffractive dijet production

This paper calculates the azimuthal angular decorrelation of diffractive dijets in ultra-peripheral heavy-ion, $ep$, and eAeA 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
⚛️ nuclear theory

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 ⓘ
⚛️ nuclear experiments

Proton radioactivity in deformed nuclei with microscopic optical potential: A novel angular-dependent emission mechanism in the nanosecond-lived 149^{149}Lu

This paper presents a novel theoretical framework combining deformed microscopic optical potentials with angular-dependent emission mechanisms to accurately predict the half-lives of oblate deformed proton emitters like 149^{149}Lu, revealing unprecedented angular emission phenomena and validating the model's predictive power for exotic nuclear decays.

Yin Fan, Sibo Wang, Xiao-Hua Li, Haozhao Liang2026-06-01
⚛️ phenomenology

Factorizing quarkonium production matrix elements using effective field theory

This paper utilizes effective field theory and a Hubbard-Stratonovich transformation to factorize quarkonium production matrix elements in NRQCD into state-independent gluon correlators and wavefunctions at the origin, thereby verifying existing relationships for S-wave states, identifying new P-wave contributions, and restoring universality to TMD soft transition functions.

Marston Copeland, Ivan Vitev2026-06-01