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

Testing residual-symmetry-fixed columns of UPMNSU_{\rm PMNS} at DUNE and T2HK with initial JUNO constraints

This paper investigates how the combined next-generation long-baseline experiments DUNE and T2HK can robustly test residual-symmetry-fixed column predictions of the lepton mixing matrix, particularly by resolving non-trivial correlations between the atmospheric mixing angle and the Dirac CP phase that remain after initial JUNO constraints.

Debajyoti Dutta, Srubabati Goswami, Monal Kashav, Ketan M. Patel2026-01-27
⚛️ phenomenology

Interference-induced entanglement in an effectively zero-lifetime particle pair

This paper establishes a quantitative framework demonstrating that ultra-peripheral heavy-ion collisions via Drell-Söding pion-pair production generate interference-induced entanglement, which manifests as a measurable second-harmonic azimuthal asymmetry in momentum space, thereby offering a robust experimental signature of quantum coherence in relativistic environments.

Xin Wu, Xinbai Li, Zebo Tang, Yusong Wang, Wangmei Zha2026-01-27
⚛️ phenomenology

GALILEO: Galactic Axion Laser Interferometer Leveraging Electro-Optics

The paper proposes GALILEO, a novel experimental method using a high-precision resonant Michelson interferometer to detect light dark matter by measuring the oscillation-induced changes in the refractive index of electro-optical materials, thereby exploring a previously uncharted mass range beyond the capabilities of traditional microwave cavity haloscopes.

Reza Ebadi, David E. Kaplan, Surjeet Rajendran, Ronald L. Walsworth2026-01-26