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.

⚛️ phenomenology

Gravitational Wave Echoes of the First Order Phase Transition in a Kination-Induced Big Bang

This paper investigates the stochastic gravitational wave background generated by a first-order phase transition ending a kination-dominated epoch in the Kination-Induced Big Bang scenario, demonstrating that such a mechanism can dynamically induce metastability and produce a signal spanning nHz to MHz frequencies that is consistent with Pulsar Timing Array observations and testable by future interferometers.

Richard Casey, Katherine Freese, Evangelos I. Sfakianakis2026-02-17
⚛️ general relativity

Dynamical Formation of Charged Wormholes

This paper constructs static, spherically symmetric, charged traversable wormhole solutions supported by negative-energy null dust and proposes a dynamical formation scenario where a black hole evolves into a wormhole through sequential transitions mediated by impulsive null shells, with the resulting throat radius determined by the initial black hole's and injected shell's mass and charge.

Yasutaka Koga, Ryota Maeda, Daiki Saito, Keiya Uemichi, Daisuke Yoshida2026-02-16
⚛️ nuclear theory

Linear realization of SU(3) parity doublet model for octet baryons with bad diquark

This paper constructs a linear SU(3)L×SU(3)RSU(3)_L \times SU(3)_R parity doublet model for octet baryons that, by incorporating the (3,6)+(6,3)(3,6) + (6,3) representation containing "bad" diquarks alongside the dominant (3,3ˉ)+(3ˉ,3)(3,\bar{3}) + (\bar{3},3) representation, successfully reproduces the ground-state mass hierarchy (including the Σ\Sigma-Ξ\Xi ordering) and predicts the spectrum of excited states up to 2.5 GeV.

Bikai Gao, Atsushi Hosaka2026-02-16
🌀 nonlinear sciences

Effective dynamics and defect expansions for polynomial PDEs on thin annuli

This paper establishes a unified geometric and analytic framework using renormalized Sobolev orthogonal polynomials to derive stable dimension-reduction theorems and defect expansions for polynomial PDEs on thin annuli, effectively capturing their convergence to one-dimensional dynamics while accounting for anisotropic dispersive and homogenized effects across both integrable and non-integrable systems.

Jean-Pierre Magnot2026-02-16