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.

⚛️ phenomenology

Light neutrinos, Dark matter and leptogenesis near electroweak scale and Z4Z_4 symmetry

This paper proposes a Type I seesaw model with Z4Z_4 symmetry and soft-breaking terms at the electroweak scale that successfully explains light neutrino oscillation data, identifies the lightest right-handed neutrino as a dark matter candidate via freeze-in, and generates the baryon asymmetry through resonant leptogenesis using only a minimal set of parameters.

Kunal Pandey, Rathin Adhikari2026-04-07
⚛️ high-energy theory

Two-point functions and the vacuum densities in the Casimir effect for the Proca field

This paper investigates the vacuum properties of the Proca field between parallel plates in (D+1)-dimensional Minkowski spacetime under perfect electric and magnetic conductor boundary conditions, revealing that while most vacuum expectation values converge to their massless counterparts in the zero-mass limit, the energy-momentum tensor under magnetic conductor conditions remains distinct due to the unique constraints imposed on the longitudinal polarization mode.

A. A. Saharian, H. H. Asatryan2026-04-06
⚛️ high-energy theory

Interacting bosonic dark energy and fermionic dark matter in Einstein scalar Gauss-Bonnet gravity

This paper investigates a cosmological model where a Gauss-Bonnet-coupled scalar field (dark energy) interacts with fermionic dark matter, demonstrating that both exponential and power-law potentials yield expansion histories consistent with current observational data and the standard Λ\LambdaCDM model while allowing for testable deviations in gravitational wave propagation.

Simran Arora, Saddam Hussain, Benjamin Rose, Anzhong Wang2026-04-06
⚛️ phenomenology

Research of the Behavior of the Effective Potential in Systems with Phase Transitions through the Prism of A--D--E Type Singularities

This paper proposes that the behavior of the effective potential in Higgs-portal scalar singlet systems, characterized by a topologically stable non-simple singularity with Milnor number μ=9\mu=9, can be comprehensively mapped and experimentally verified through high-precision measurements of Higgs couplings and gravitational waves, ensuring that any viable strong first-order electroweak phase transition will be detected or ruled out by 2040.

T. V. Obikhod2026-04-06