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.

Search for a Time-Dependent Z' Resonance in the Dimuon Channel

This paper introduces a novel time-domain search strategy using a two-dimensional unbinned likelihood framework to detect time-varying ZZ' resonances in CMS dimuon data, demonstrating that incorporating temporal information can enhance sensitivity to signals with periodically modulated masses compared to conventional time-integrated analyses.

Marlon P. Brade, Jeremiah D. Juevesano, Venus Abbegaile S. Carbonel, Karen E. Bustamante, Dennis C. Arogancia, Jan Mickelle V. Maratas2026-06-17⚛️ hep-ph

Synergy between CSST and future gravitational-wave detectors: Probing primordial black holes by cross-correlating dark sirens with galaxies

This paper demonstrates that cross-correlating galaxy surveys from the Chinese Space-station Survey Telescope (CSST) with future gravitational-wave detector networks, particularly the multi-band BDET2CE configuration, offers a powerful statistical method to identify primordial black holes by distinguishing their unique clustering biases from astrophysical black holes, potentially detecting PBH contributions as low as 20% of the total merger rate.

Ya-Nan Du, Ji-Yu Song, Jing-Fei Zhang, Xin Zhang2026-06-17⚛️ hep-ph

Hamiltonian formalism for Bose excitations in a plasma with a non-Abelian interaction: plasmon bremsstrahlung

This paper proposes a classical Hamiltonian formalism for plasmon bremsstrahlung in a hot quark-gluon plasma by generalizing the Lie-Poisson bracket to include non-Abelian color charges and deriving a self-consistent system of kinetic equations to describe the time evolution of plasmon number densities and hard particle color charges.

Yu. A. Markov, M. A. Markova, N. Yu. Markov2026-06-17⚛️ hep-th

Constraints on the Sum of Neutrino Masses from ACT DR6 and DESI DR2 Considering Isocurvature Initial Conditions

This paper presents the first joint constraints on the sum of neutrino masses and neutrino density isocurvature modes using Planck 2018, ACT DR6, SPT-3G, DESI DR2, and DES Year 5 data, finding that while the inclusion of isocurvature perturbations only marginally weakens the upper mass limits, the tightest bounds are highly sensitive to dark energy models and prior assumptions regarding the neutrino mass hierarchy.

Hongsheng Hou, Sai Wang, Zhi-Chao Zhao, Xin Zhang2026-06-17⚛️ hep-ph

Pushing the Primordial Frontier: Exact Linear Solutions in Multifield Inflation

This paper presents exact analytic solutions for the linear dynamics of a two-field inflationary system with arbitrary entropy mass and interaction strength, providing closed-form expressions for the primordial power spectrum that bridge weakly and strongly coupled regimes and enabling future analytic studies of multifield observables like non-Gaussianity.

Javier Huenupi, Claudio Muñoz, Gonzalo A. Palma, Spyros Sypsas2026-06-17⚛️ hep-ph

CGC and saturation approach: Impact-parameter dependent model of perturbative QCD and combined HERA data

This paper presents an impact-parameter dependent perturbative QCD model based on the Color Glass Condensate framework, utilizing an analytical solution to the Balitsky-Kovchegov equation and a Froissart-consistent exponential saturation momentum, which successfully describes a wide range of combined HERA data at small-xx and offers a reliable foundation for future high-energy experiments like the Electron-Ion Collider.

Michael Roa, José Garrido, Miguel Guevara2026-06-16⚛️ hep-ph