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

A Special E6G(2)×SU(3)AE_6\to G(2) \times SU(3)_A Embedding for Standard Model and Dark Matter

This paper proposes a novel grand unified framework based on a non-regular E6G(2)×SU(3)AE_6 \to G(2) \times SU(3)_A embedding that successfully recovers the Standard Model while naturally suppressing proton decay, accommodating a secluded dark matter sector via a confining G(2)G(2) gauge group, and ensuring cosmological viability through monopole dilution.

Nicolò Masi2026-03-18
🔭 astrophysics

Formation and relaxation of halos in the context of wave DM particles evolving on a background of neutrino condensate

This paper numerically investigates the formation and relaxation of wave dark matter halos on a background of neutrino condensate, finding that while the condensate influences halo dynamics depending on the cutoff parameter, the two species can coexist with marginal differences for cutoff values around a few eV.

A. Capolupo, I. De Martino, S. Monda, R. Della Monica, A. Quaranta2026-03-18
⚛️ 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
⚛️ phenomenology

Crowdsourcing Gravitational Waves from Superradiant Axions

This paper proposes a crowdsourcing approach to detect ultralight axions by analyzing the collective gravitational wave signals from axion clouds around the entire population of black holes in the Milky Way and the universe, demonstrating that current and future detectors like LIGO, Einstein Telescope, and Cosmic Explorer can robustly probe axion masses in the range of 101310^{-13} to 101010^{-10} eV.

Sebastian A. R. Ellis, Orion Ning, Nicholas L. Rodd, Jan Schütte-Engel2026-03-18
⚛️ general relativity

Quasi-pole quintessential inflation in metric-affine gravity

This paper proposes a quintessential inflation model within metric-affine gravity, where non-minimal couplings with the Holst invariant generate a quasi-pole behavior that successfully unifies early inflation and late-time dark energy while predicting a narrow, testable range for the scalar spectral index (0.966ns0.9670.966 \lesssim n_s \lesssim 0.967) consistent with observational constraints.

Konstantinos Dimopoulos, Christian Dioguardi, Ioannis D. Gialamas, Antonio Racioppi2026-03-18