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.

⚛️ high-energy experiments

Probing CP-Violating Neutral Triple Gauge Couplings at Electron-Positron Colliders

This paper proposes a new, gauge-symmetry-compatible formulation for CP-violating neutral triple gauge couplings within the SMEFT framework and demonstrates that future high-energy e+e−e^+e^- colliders, particularly with polarized beams, can probe new physics scales ranging from TeV to 10 TeV with sensitivities improving from 10−410^{-4} to 10−810^{-8} as collision energy increases from 250 GeV to 5 TeV.

John Ellis, Hong-Jian He, Rui-Qing Xiao2026-04-10
⚛️ high-energy experiments

Implications of the evidence for direct CP\mathbf{CP} violation in D→π+π−D\to \pi^+\pi^- decays

This paper demonstrates that the observed CPCP violation in D→π+π−D\to \pi^+\pi^- decays implies a penguin amplitude significantly larger than Standard Model predictions and cannot be explained by rescattering alone, thereby providing strong model-independent evidence for physics beyond the Standard Model.

Rahul Sinha, Thomas E. Browder, N. G. Deshpande, Dibyakrupa Sahoo, Nita Sinha2026-04-10
⚛️ high-energy experiments

Probing Neutral Triple Gauge Couplings via ZZZZ Production at e+e−e^+e^- Colliders with Machine Learning

This paper investigates the sensitivity of future high-energy e+e−e^+e^- colliders to dimension-8 neutral triple gauge couplings in ZZZZ production, demonstrating that machine learning techniques applied to angular distributions and beam polarization can significantly enhance the discovery potential for new physics scales up to the multi-TeV range.

John Ellis, Hong-Jian He, Rui-Qing Xiao, Shi-Ping Zeng2026-04-10
⚛️ lattice

Finite-temperature Yang-Mills theories with the density of states method: towards the continuum limit

This paper utilizes the density of states method in lattice field theory to characterize the first-order confinement/deconfinement phase transition in finite-temperature Sp(4)Sp(4) Yang-Mills theory, demonstrating the persistence of non-perturbative phenomena and establishing critical parameters for future continuum limit extrapolations relevant to gravitational wave predictions.

Ed Bennett, Biagio Lucini, David Mason, Maurizio Piai, Enrico Rinaldi, Davide Vadacchino, Fabian Zierler2026-04-10
⚛️ high-energy experiments

A Way of Axion Detection with Mass 10−4-10−310^{-4} \text{-}10^{-3}eV Using Cylindrical Sample with Low Electric Conductivity

This paper proposes a novel axion detection method for masses between 10−410^{-4} and 10−310^{-3} eV that utilizes a large cylindrical sample with low electrical conductivity to generate a measurable bulk oscillating current under a magnetic field, offering a feasible signal-to-noise ratio even at cryogenic temperatures.

Aiichi Iwazaki2026-04-10
⚛️ general relativity

Freeze-out and spectral running of primordial gravitational waves in viscous cosmology

This paper investigates how shear viscosity in the post-inflationary universe modifies the propagation of primordial gravitational waves, demonstrating that viscosity induces additional damping and spectral running—such as a blue tilt from freeze-out in the electron-photon-baryon plasma—thereby altering the gravitational wave energy density spectrum by approximately 10−310^{-3}.

Giuseppe Fanizza, Eliseo Pavone, Luigi Tedesco2026-04-10
⚛️ phenomenology

Area Scaling of Dynamical Degrees of Freedom in Regularised Scalar Field Theory

Using symplectic model order reduction, this paper demonstrates that the minimal number of canonical degrees of freedom required to describe the Hamiltonian evolution of a regularised scalar field scales with the area of the region rather than its volume, a phenomenon driven by the count of distinct normal-mode frequencies and observed in both flat and curved spacetimes as well as weakly interacting theories.

Oliver Friedrich, Kristina Giesel, Varun Kushwaha2026-04-10
⚛️ phenomenology

Towards a complete scheme of cosmological neutrino self-interactions: Collision term for a wide range of mediator masses

This paper presents a novel framework for calculating the neutrino-neutrino collision term in the Boltzmann hierarchy that incorporates both neutrino and mediator masses as free parameters, enabling a smooth transition between light and heavy mediator regimes and providing a robust tool for testing neutrino self-interaction scenarios across a wide range of cosmological conditions.

Ivan Pérez-Castro, Josue De-Santiago, Gabriela Garcia-Arroyo, Jorge Venzor, Abdel Pérez-Lorenzana2026-04-10