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

Nonperturbative double copy: worldline instantons, color thermality, and backreaction

This paper presents a non-perturbative worldline instanton analysis of vacuum decay in a Schwarzschild background that recovers a gauge theory color-thermal spectrum as a topological winding mode and demonstrates how the double copy maps this response to gravity while capturing universal non-linear backreaction corrections required for unitarity.

John Joseph M. Carrasco, Yaxi Chen, Nicolas H. Pavao, Aslan Seifi2026-01-27
⚛️ general relativity

Gluing different gravitational models: f(R)f(R) case

This paper employs a variational approach to derive junction conditions for gluing distinct f(R)f(R) gravitational theories across a non-null hypersurface, demonstrating that while the Ricci scalar may be discontinuous, the continuity of the extrinsic curvature and the derivative of the Lagrangian with respect to the Ricci scalar is required, with results shown to be consistent across Jordan and Einstein frames.

Amin Aalipour, Nima Khosravi2026-01-27
⚛️ high-energy theory

Duality, asymptotic charges and higher form symmetries in pp-form gauge theories

This paper computes asymptotic surface charges for pp-form gauge fields in DD-dimensional Minkowski spacetime, demonstrating that Hodge duality maps electric-like charges to magnetic-like charges via a Möbius transformation, establishes a topological existence and uniqueness theorem for this duality map, and links higher-form symmetry charges to asymptotic charges to advance the celestial holography program.

Federico Manzoni2026-01-26
⚛️ high-energy theory

Existence theorem on the UV limit of Wilsonian RG flows of Feynman measures

This paper establishes that under mild conditions, a Wilsonian renormalization group flow of Feynman measures extending to arbitrary regularization strengths possesses a factorization property, ensuring the existence of a well-defined ultimate UV limit measure on distributional fields from which all regularized instances can be derived as marginals.

Andras Laszlo, Zsigmond Tarcsay, Jobst Ziebell2026-01-26