⚛️ Category

nucl-th

1634 papers

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

Chebyshev-expanded covariant density functional from relativistic Brueckner theory

This paper presents the construction of a new density-dependent covariant energy density functional (CE-ME1) derived from relativistic Brueckner–Hartree–Fock self-energies using Chebyshev polynomials, which successfully reproduces key nuclear matter saturation properties and the equation of state while highlighting the sensitivity of local reductions to derivative quantities like symmetry energy curvature.

Armen Sedrakian2026-10-28
⚛️ nuclear experiments

Methodology for Analyzing Proton Multiplicity Fluctuations with Azimuthal Partitions in Heavy-Ion Collisions

This paper proposes and validates a novel methodology using the Δσ2\Delta\sigma^2 observable to analyze proton multiplicity fluctuations in azimuthal partitions, demonstrating its potential to quantify clustering tendencies and extract interaction parameters relevant to the first-order phase transition in heavy-ion collisions through simulations with AMPT and MUSIC+FIST models.

Dylan Neff, Zhongling Ji, Roli Esha, Gang Wang, Huan Huang2026-10-27
⚛️ phenomenology

Independence of current components, polarization vectors, and reference frames in the light-front quark model analysis of meson decay constants

This paper demonstrates that within the light-front quark model consistent with the Bakamjian-Thomas construction, meson decay constants are uniquely determined and independent of the choice of current components, polarization vectors, or reference frames, thereby resolving long-standing challenges regarding the consistency of physical observables derived from different current components.

Ahmad Jafar Arifi, Ho-Meoyng Choi, Chueng-Ryong Ji, Yongseok Oh2026-10-27
⚛️ nuclear theory

Trajectory Functionals in the Thermodynamics of Radiation-Induced Damage in Structural Materials

This paper presents a novel non-local kinetic framework combining semi-Markov renewal transport, the generalized Doob's h-transform, and the Feynman-Kac formalism to model the thermodynamics of radiation-induced damage in WWER fuel claddings, revealing how boundary stress singularities drive a distinct sigmoidal degradation trajectory and localized lifespan reduction.

V. V. Ryazanov2026-10-27
⚛️ nuclear theory

"Inevitable'' nonstrange tetraquark states and ρρ\rho\rho interaction

Using the quark delocalization color screening model, this study demonstrates that strong attractive interactions between ρ\rho mesons favor the formation of bound molecular states, identifying the IJ=02IJ=02 configuration as the most promising candidate for an "inevitable" nonstrange tetraquark worthy of experimental search.

Yanyue Pan, Yuying Hao, Shirui Zhao, Hongxia Huang, Jialun Ping2026-10-27
⚛️ nuclear experiments

The Pion Parton Distribution Puzzle in the High x Region

This paper presents a new theoretical approach using spectral function representation and phenomenological Light-Front wave functions to calculate pion parton distribution functions, revealing that the valence region is dominated by a highly virtual quark-antiquark cluster with minimal residual mass, a configuration that successfully reproduces the observed (1−x)(1-x) behavior at the x→1x \to 1 limit and links the PDF's peak characteristics to its analytic behavior near unity.

Misak Sargsian2026-10-27