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 theory

Tunneling with physics-informed RG flows in the anharmonic oscillator

This paper demonstrates that physics-informed renormalisation group (PIRG) flows, enhanced by ground state expansion and precision Galerkin numerics, successfully capture the non-perturbative instanton physics of the anharmonic oscillator's weak-coupling tunneling regime, yielding a decay constant that deviates by only 1% from the analytic value.

Alfio Bonanno, Friederike Ihssen, Jan M. Pawlowski2026-02-04
⚛️ high-energy experiments

Updated Bounds on the Minimal Left-Right Symmetric Model from LHC Dilepton Resonance Searches

Using 13 TeV LHC dilepton resonance data, this study establishes new lower mass bounds for the ZRZ_R boson in the Minimal Left-Right Symmetric Model across a range of gauge couplings, thereby constraining an unexplored parameter space where the right-handed neutrino is heavier than the WRW_R boson.

Gabriela Lichtenstein, Ricardo C. Silva, Mario J. Neves, Farinaldo Queiroz2026-02-04
🔭 astrophysics

Probing displaced (dark)photons from low reheating freeze-in at the LHC

This paper proposes a low-reheating freeze-in dark matter model featuring a stable dark photon and a long-lived pseudo-scalar mediator, demonstrating that LHC searches for displaced photons from Higgs decays can effectively constrain the model's parameter space and exclude thermalized mediators consistent with observed relic abundance.

Paola Arias, Bastián Díaz Sáez, Lucía Duarte, Joel Jones-Pérez, Walter Rodriguez, Danilo Zegarra Herrera2026-02-04
⚛️ phenomenology

Reviving the energy-dependent partonic structure of f0(980)f_0(980) via two-pion distribution amplitudes

This paper presents a novel high-twist analysis of Ds[ππ]SD_s \to [\pi\pi]_S form factors using two-pion distribution amplitudes, revealing that the significant cancellation between twist-2 and twist-3 contributions leads to a predicted decay rate far below experimental values, thereby challenging the single-meson qqˉq\bar{q} interpretation of the f0(980)f_0(980) and supporting an energy-dependent partonic structure for light scalar mesons.

Shan Cheng, Ling-yun Dai, Jian-ming Shen, Shu-lei Zhang2026-02-04