⚛️ Category

hep-th

4348 papers

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

Model-Independent and Data-Driven Extraction of the Photon Distribution Function at the Electron--Ion Collider

This paper proposes a model-independent, data-driven method to extract the photon distribution function at the Electron--Ion Collider by utilizing a cross-section-ratio-based inversion technique that transforms the standard factorization convolution into a multiplicative form while accounting for soft-photon radiation, finite-bin-width effects, and experimental acceptance.

Cong Li2026-07-17
⚛️ nuclear theory

A self-consistent Higgs-portal framework for dark matter--admixed neutron stars: Collider-motivated benchmarks meet multimessenger constraints

This paper proposes a self-consistent single-fluid relativistic mean-field framework for dark matter-admixed neutron stars using a Higgs-portal model with a massive Z′Z^\prime mediator, demonstrating how the resulting repulsive interaction dynamically couples baryonic and dark matter sectors to systematically soften the equation of state, reduce maximum stellar mass, and establish a direct link between collider-motivated WIMP models and multimessenger astrophysical constraints.

Adamu Issifu2026-07-17
⚛️ high-energy theory

Casimir effect for a massive scalar field confined between parallel plates with a spatially varying effective mass

This paper investigates the Casimir effect for a massive scalar field with a position-dependent effective mass between parallel plates, deriving exact normal modes that yield a Landau-like energy spectrum and demonstrating that the resulting renormalized vacuum energy is dominated by this sector and exponentially suppressed in the strong-coupling regime.

R. L. Araújo Xavier, M. H. B. Chaves, E. R. Bezerra de Mello, Herondy Mota2026-07-17
⚛️ phenomenology

Spacelike-Collinear Scattering by the Method of Regions

This paper employs the Method of Regions to demonstrate that kinematic dependence in spacelike-collinear splitting amplitudes, which violates strict factorisation, originates from a unique "hidden region" absent in the timelike limit, and proposes a general algorithm to identify such regions as the mechanism breaking analytic connection between crossing-related asymptotic limits.

Wen Chen, Einan Gardi, Rourou Ma, Yao Ma, Yang Zhang, Zehao Zhu2026-07-17
⚛️ high-energy theory

Magnetic corrections to the fermionic Casimir effect with Lorentz symmetry violation and a compactified extra dimension

This paper utilizes the zeta function technique to derive analytic expressions for the magnetic field-dependent Casimir energy and pressure of a massive, charged fermion field subject to MIT bag boundary conditions, incorporating Lorentz symmetry violation and a compactified extra dimension under various timelike and spacelike violation scenarios.

Andrea Erdas2026-07-17
🔢 mathematics

Weak topological phases in the presence of interactions

This paper mathematically computes the groups of weak symmetry-protected topological phases in dimensions zero through three for all tenfold-way symmetry types by comparing homotopical free and interacting classifications using Atiyah's Real KR-theory and Freed-Hopkins' invertible field theory, thereby predicting their stability under short-range interactions and identifying potential intrinsically-interacting phases.

Omar Antolín Camarena, Arun Debray, Cameron Krulewski, Natalia Pacheco-Tallaj, Daniel Sheinbaum, Luuk Stehouwer2026-07-16