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.

⚛️ general relativity

Scalaron excitation by topological vortices in quadratic f(R)f(R) gravity on a BTZ black hole background

This paper demonstrates that in quadratic f(R)f(R) gravity on a BTZ black hole background, localized Maxwell-Higgs vortices excite a stable, finite-energy scalaron mode with a universal asymptotic decay profile, thereby activating the unique local gravitational degree of freedom in three dimensions while ensuring a smooth recovery of the Einstein limit.

C. A. S. Almeida, F. C. E. Lima2026-03-17
⚛️ high-energy theory

Residual group-like symmetries in selection rules without group actions

This paper demonstrates that loop-induced group-like symmetries, termed "groupification," remain exact in theories with fusion algebras derived from finite group conjugacy classes, thereby ensuring the naturalness of non-invertible selection rules and revealing approximate discrete symmetries that control coupling magnitudes in heterotic string theory.

Jun Dong, Tatsuo Kobayashi, Shuhei Miyamoto, Ryusei Nishida, Hajime Otsuka2026-03-17
⚛️ high-energy theory

Inflation without an Inflaton III: non-Gaussian signatures

This paper investigates primordial non-Gaussianity within the "Inflation without an Inflaton" framework, finding that while the mechanism intrinsically produces a bispectrum enhanced in squeezed configurations, its amplitude is so strongly suppressed by observational constraints on the scalar power spectrum that the resulting non-Gaussianity at CMB scales is negligibly small.

Mariam Abdelaziz, Marisol Traforetti, Daniele Bertacca, Raul Jimenez, Sabino Matarrese, Angelo Ricciardone2026-03-17
⚛️ phenomenology

Gauge Symmetry Beyond Perturbation Theory: BRST and anti-BRST Structure, Background Fields, and Infrared Dynamics of Yang--Mills Theory

This paper provides a comprehensive functional framework for non-Abelian gauge theories that utilizes BRST and anti-BRST symmetries within background field gauges to construct a unique, gauge-invariant, and process-independent effective charge for Yang-Mills theory, thereby offering a unified description of its dynamics from the ultraviolet to the infrared regime where dynamical mass generation occurs.

Daniele Binosi2026-03-17
⚛️ high-energy theory

Galois Covers of Calabi-Yau Quivers and BPS State Counting

This paper investigates Galois covers of BPS quivers induced by finite abelian group actions, establishing a connection between the BPS invariants of a quiver and its covering quiver (representing an orbifold singularity) through fixed loci and algebra homomorphisms, and proposes an explicit covering formula expressing the rational BPS invariants of the original theory as a sum of those of the covering theory.

Johannes Aspman, Cyril Closset, Elias Furrer, Jan Manschot2026-03-17
⚛️ high-energy theory

Classical Gravitational Scattering from the Ultraviolet and the Absence of Calabi-Yau Integrals in the Conservative Sector at O(G5)O(G^5)

This paper demonstrates that Calabi-Yau and complete elliptic integrals do not contribute to conservative gravitational scattering observables at the fifth post-Minkowskian order because the specific ultraviolet singular structures required to generate the necessary logarithmic terms are absent in the classical limit.

Zvi Bern, Avery Jackman, Gareth Mansfield, Michael S. Ruf2026-03-17