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.

Bayesian Inference of Heavy-Quark Dissipation and Jet Transport Parameters from D-Meson observables in heavy-ion collisions at the LHC energies

This study presents the first simultaneous Bayesian inference of temperature-dependent heavy-quark spatial diffusion and jet transport coefficients in quark-gluon plasma using LHC D-meson data, revealing a non-monotonic temperature dependence in their ratio and establishing a data-driven quantitative relationship between these fundamental transport properties.

Xu-Fei Xue, Zi-Xuan Xu, Wei Dai, Jiaxing Zhao, Ben-Wei Zhang2026-04-17⚛️ hep-ph

Horizon brightened acceleration radiation from massive vector fields

This paper develops a quantum-optical framework for acceleration radiation from atoms falling into a Schwarzschild black hole interacting with a massive Proca field, demonstrating that while the thermal excitation balance remains universal, the absolute spectra and entropy flux are uniquely shaped by mass thresholds, polarization-dependent graybody transmissions, and vector-field-specific radiative area changes.

Reggie C. Pantig, Ali Övgün2026-04-17⚛️ gr-qc

Grading the Unspoken: Evaluating Tacit Reasoning in Quantum Field Theory and String Theory with LLMs

This paper introduces a five-level expert-curated evaluation framework to demonstrate that while large language models excel at explicit derivations in quantum field theory and string theory, they systematically fail when tasks require reconstructing tacit reasoning or maintaining global conceptual consistency, thereby revealing the limitations of current evaluation paradigms for highly abstract theoretical physics.

Xingyang Yu, Yinghuan Zhang, Yufei Zhang, Zijun Cui2026-04-17🔬 physics