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

Isocurvature Constraints on Dark Matter from Evaporated Primordial Black Holes

This paper investigates how primordial non-Gaussianity can convert small-scale Poisson fluctuations of evaporating primordial black holes into large-scale isocurvature perturbations in the dark sector, thereby establishing new constraints on dark matter production scenarios alongside re-evaluations of limits from overproduction, warm dark matter, and scalar-induced gravitational waves.

G. Franciolini, D. Racco2026-03-04
⚛️ phenomenology

Constraints on the odderon amplitude in the CGC framework

This paper analyzes elastic $pp$ and ppˉp\bar{p} scattering within the Color Glass Condensate framework using experimental data to derive phenomenological upper bounds on the odderon amplitude, finding that while current parametrizations can describe the data, large uncertainties limit the precision of these constraints and highlight the need for improved measurements.

Michael Roa, Marat Siddikov, Yanil Gentile, Ivan Zemlyakov2026-03-04
⚛️ phenomenology

Nature of K(1680)K^*(1680) and qqˉq\bar{q}-hybrid mixing as the SU(3) partner of η1(1855)η_{1}(1855) in the strange sector

This study investigates the K(1680)K^*(1680) state using flux-tube and quark pair creation models, concluding that its anomalous decay pattern cannot be explained by a conventional qqˉq\bar{q} scenario but instead provides strong evidence for qqˉq\bar{q}-hybrid mixing in the strange sector, offering guidance for future experimental searches at BESIII, LHCb, and Belle-II.

Samee Ullah, Ye Cao, Ming-Xiao Duan, Hai-Bing Fu, Qiang Zhao2026-03-04
⚛️ phenomenology

Electroweak Higgs boson pair production: Updated inclusive cross sections

This paper presents updated inclusive cross sections for electroweak Higgs boson pair production at LHC-relevant energies, calculated at N3^3LO QCD+NLO EW for vector-boson fusion and NNLO QCD for associate production, covering both Standard Model predictions and scenarios with anomalous trilinear Higgs self-couplings.

Ramona Gröber, Alexander Karlberg, Mathieu Pellen, Gioia Sacchi, Michael Spira2026-03-04