Hep-Th, or high-energy theoretical physics, explores the fundamental building blocks of our universe and the forces that govern them. Researchers in this field use complex mathematics to understand everything from subatomic particles to the behavior of black holes, often pushing the boundaries of what we know about space and time.

At Gist.Science, we monitor the arXiv repository to ensure you stay ahead of the curve in this rapidly evolving discipline. For every new preprint uploaded to arXiv under this category, our team generates both accessible plain-language overviews and detailed technical summaries, making cutting-edge research understandable regardless of your background.

Below are the latest papers in high-energy theoretical physics, curated to help you navigate the most significant recent discoveries.

⚛️ nuclear theory

Imprint of αα-Clustering on Ab Initio Correlations in Relativistic Light Ion Collisions

This study investigates the impact of α\alpha-clustering on nucleonic correlations in relativistic light ion collisions by extracting and comparing structural parameters from various *ab initio* models and density functions, revealing distinct geometric configurations and validating perturbative calculations against Monte Carlo simulations for both symmetric and asymmetric collision systems.

Hadi Mehrabpour2026-02-25
⚛️ general relativity

Non-linear Dynamics and Primordial Black Hole Formation During Kination

Using numerical relativity to evolve the Einstein equations, this study demonstrates that while scalar perturbations during the kination epoch follow perturbative predictions in the sub-horizon limit, they exhibit rich non-linear dynamics in the super-horizon regime that could lead to primordial black hole formation and potentially reheat the universe.

Cheng Cheng, Panagiotis Giannadakis, Lucien Heurtier, Eugene A. Lim2026-02-25
⚛️ general relativity

Charged particle dynamics in singular spacetimes: hydrogenic mapping and curvature-corrected thermodynamics

This paper analyzes the dynamics of charged test particles in a singular, horizonless spacetime derived from the Einstein-Maxwell-Scalar framework, demonstrating how the system transitions from a hydrogenic-like weak-field regime with curvature-corrected thermodynamics to a hard-wall confined state near the outermost curvature singularity.

Abdullah Guvendi, Semra Gurtas Dogan, Omar Mustafa, Hassan Hassanabadi2026-02-25
⚛️ high-energy theory

Relativistic resistive magnetohydrodynamics for a two-component plasma

This paper derives relativistic resistive magnetohydrodynamics for a two-component ultrarelativistic plasma directly from kinetic theory using the 14-moment approximation, establishing a simplified model that accurately describes systems with small viscosity-to-entropy ratios and weak fields while revealing controlled deviations, such as nonlinear back-reaction and shear-stress generation, in regimes with strong electric fields or significant shear stress.

Khwahish Kushwah, Caio V. P. de Brito, Gabriel S Denicol2026-02-25
⚛️ high-energy theory

Analysis of Spin-1/2 Particle Scattering in a Spinning Cosmic String Spacetime with Torsion, Curvature, and a Coulomb Potential

This paper derives closed-form analytical solutions for the scattering of spin-1/2 particles in a spinning cosmic string spacetime with torsion and curvature, demonstrating how these geometric defects and a Coulomb potential modify quantum phase shifts and cross-sections to produce topology-renormalized scattering patterns with potential applications in Dirac materials.

Abdelmalek Boumali2026-02-25
🌀 nonlinear sciences

Relating auxiliary field formulations of 4d4d duality-invariant and 2d2d integrable field theories

This paper elucidates the connections between auxiliary field formulations of four-dimensional duality-invariant electrodynamics and two-dimensional integrable sigma models by demonstrating that their relationships are governed by Legendre transformations and field redefinitions, thereby establishing correspondences between specific formalisms and extending known families of integrable deformations.

Nicola Baglioni, Daniele Bielli, Michele Galli, Gabriele Tartaglino-Mazzucchelli2026-02-25