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

Tailored PDFs for New Physics searches

This paper evaluates strategies for selecting Parton Distribution Functions (PDFs) in New Physics searches at high-energy colliders, comparing conservative fitting methods that exclude potentially contaminated data against simultaneous fits of PDFs and Standard Model Effective Field Theory (SMEFT) parameters to ensure robust sensitivity in High-Luminosity LHC analyses.

Ella Cole, Mark N. Costantini, Elie Hammou, Luca Mantani, Francesco Merlotti, Manuel Morales-Alvarado, Maria Ubiali2026-07-20
⚛️ phenomenology

Muon Bremsstrahlung as a New Probe of Dark Sector at Neutrino Experiments

This paper proposes that muon bremsstrahlung from the intense muon beams at accelerator neutrino facilities serves as a novel production mechanism for Heavy Neutral Leptons (HNLs) with masses up to O(1)\mathcal{O}(1) GeV, significantly extending the discovery potential of experiments like SBND and DUNE to parameter spaces inaccessible via traditional meson decays.

P. S. Bhupal Dev, Bhaskar Dutta, Aparajitha Karthikeyan, Mudit Rai, Zahra Tabrizi2026-07-20
⚛️ nuclear theory

Solar-System Abundances of pp-Nuclides Probe Collective Neutrino Oscillations in Supernovae

This study demonstrates that collective neutrino oscillations occurring within 10 km of the proto-neutron star surface in core-collapse supernovae significantly enhance the production of specific proton-rich nuclides, thereby resolving discrepancies between theoretical models and observed solar-system abundances.

Alexander Friedland, Derek J. Li, Giuseppe Lucente, Payel Mukhopadhyay, Ian Padilla-Gay, Amol V. Patwardhan2026-07-20
⚛️ high-energy theory

Localized Vector Modes on Local Cosmic Strings

This paper investigates vector excitations on local cosmic strings within the Abelian-Higgs model, demonstrating that these massive, localized modes persist across all scalar coupling regimes, decay via distinct mechanisms depending on the coupling strength, and trigger a parametric instability that simultaneously excites transverse string directions through nonlinear couplings.

Sergio Alameda-Calvo, Jose J. Blanco-Pillado, Jose Queiruga2026-07-20