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.

Fixing the center-of-mass frame of numerical relativity waveforms using the post-Newtonian center-of-mass charge

This paper improves the robustness of center-of-mass frame fixing for numerical relativity waveforms by incorporating post-Newtonian boosted center-of-mass charge calculations to capture physical out-spiraling oscillations, thereby significantly reducing the sensitivity of fit parameters to the choice of fitting window and integrating the method into the `scri` Python package.

Aniket Khairnar, Leo C. Stein, Michael Boyle, Nils Deppe, Lawrence E. Kidder, Keefe Mitman, Jordan Moxon, Kyle C. Nelli, William Throwe, Nils L. Vu2026-03-27⚛️ gr-qc

The Art of Branching: Cobordism Junctions of 10d String Theories

This paper presents the explicit construction and microscopic worldsheet description of 9d junctions where multiple 10d string theories (including heterotic, type II, type 0, and orientifolds) dynamically branch from one another, providing a realization of the Cobordism Conjecture through gapped degrees of freedom that close at the junction to trigger the transition.

Chiara Altavista, Edoardo Anastasi, Roberta Angius, Angel M. Uranga2026-03-27⚛️ hep-th