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.

🔬 physics

Three-Dimensional Modified Dirac Oscillator in Standard and Generalized Doubly Special Relativity

This paper presents an exactly solvable three-dimensional model of the Dirac oscillator within Standard and Generalized Doubly Special Relativity frameworks, demonstrating how Planck-scale deformations modify the energy spectrum and introduce branch-dependent shifts for particle and antiparticle states while preserving the system's fundamental oscillator-spinor structure.

Abdelmalek Boumali, Nosratollah Jafari2026-03-18
⚛️ phenomenology

Cosmological Collider Searches beyond the Hubble Scale with Planck Data

Using Planck data, this paper conducts the first cosmological collider searches for primordial non-Gaussianity mediated by heavy scalar particles, finding no evidence for masses near the Hubble scale but reporting a 1.7σ1.7\sigma global hint of non-zero non-Gaussianity for parametrically heavier particles excited by a chemical potential.

Soubhik Kumar, Qianshu Lu, Zhong-Zhi Xianyu, Yisong Zhang2026-03-18
⚛️ general relativity

Hawking-Page phase transitions of black holes in the Hamiltonian formalism

This paper applies the Hamiltonian formalism to analyze Hawking-Page phase transitions in BTZ, Reissner-Nordström, and Kerr-Newman black holes, demonstrating that the system's Hamiltonian corresponds to its thermodynamic free energy and revealing how electric charge and rotation enable the coexistence of black hole and thermal soliton states in off-shell configurations.

Tran Ngoc Thien, Vo Quoc Phong2026-03-18