Hep-Ph explores the fundamental forces that govern how particles interact and behave at the smallest scales imaginable. This field bridges the gap between theoretical predictions and experimental reality, helping scientists understand the building blocks of our universe without getting lost in complex mathematics. Whether investigating the Higgs boson or searching for new physics beyond current models, these studies push the boundaries of human knowledge about matter and energy.

At Gist.Science, we process every new preprint in this category as soon as it appears on arXiv. We strip away the dense jargon to offer both accessible plain-language explanations and detailed technical summaries, ensuring that groundbreaking research is understandable to everyone from students to seasoned experts. Below are the latest papers in this dynamic field, ready for you to explore with clarity and depth.

⚛️ phenomenology

Chiral symmetry breaking in accelerating and rotating frames

This paper investigates chiral symmetry breaking in accelerating and rotating frames using low-energy effective models, revealing that the conclusion regarding acceleration-dependent critical temperatures hinges on the chosen renormalization scheme and demonstrating that rotation cooperates with acceleration to lower the critical acceleration required for chiral symmetry restoration.

Zhi-Bin Zhu, Hao-Lei Chen, Xu-Guang Huang2026-02-09
⚛️ phenomenology

Metastable Strings and Gravitational Waves in One-Scale Models

This paper demonstrates that metastable cosmic strings arising in single-scale electroweak-like dark sectors can explain the stochastic gravitational-wave background observed by Pulsar Timing Arrays through the quantum decay of classically stable strings via monopole-antimonopole pair nucleation, a process validated by a thin-defect approximation across the phenomenologically favored parameter space.

James Ingoldby, Valentin V. Khoze, Jessica Turner2026-02-09
⚛️ lattice

Dilaton Effective Field Theory across the Conformal Edge

This paper demonstrates that dilaton effective field theory serves as a diagnostic tool to distinguish between near-conformal confining and infrared conformal gauge theories, successfully applying this framework to lattice data for $SU(3)$ with Nf=8N_f=8 fundamental fermions (favoring confinement) and $SU(2)$ with Nf=1N_f=1 adjoint fermion (favoring conformal behavior).

Thomas Appelquist, James Ingoldby, Maurizio Piai2026-02-09
⚛️ phenomenology

Unified analysis of screening masses for vector and axial-vector mesons and their diquark partners in the Contact Interaction model

This paper presents a unified symmetry-preserving contact interaction analysis of the thermal screening masses for vector and axial-vector mesons and their diquark partners, demonstrating agreement with experimental data at zero temperature and signaling chiral symmetry restoration through the convergence of parity partners at high temperatures.

L. X. Gutiérrez-Guerrero, M. A. Ramírez-Garrido, M. A. Pérez de León, R. J. Hernández-Pinto2026-02-09
⚛️ general relativity

Stable Causality and Microcausality for Drummond-Hathrell Photons

This paper investigates whether superluminal photon propagation in the Drummond-Hathrell effective action violates causality in curved spacetime by applying global causal structure analysis and quantum-field-theoretic microcausality diagnostics, concluding that such propagation remains causally benign within the theory's regime of validity for specific gravitational backgrounds.

Madhukar Deb, Jay Desai, Diptimoy Ghosh2026-02-09