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

Multi-scale improved predictions for pp→ttˉW++X\boldsymbol{pp \to t\bar{t}W^+ +X}

This paper presents a comparison between standard fixed-order NLO QCD predictions and the MiNLO approach for the full off-shell pp→ttˉW++Xpp \to t\bar{t}W^+ + X process at 13 TeV, demonstrating how the MiNLO method's dynamic scale setting and Sudakov form factors improve the description of multi-lepton final states through the merging of zero-, one-, and two-jet configurations.

Nikolaos Dimitrakopoulos, Malgorzata Worek2026-07-14
⚛️ phenomenology

A Standard Model analysis of D0→π−π+,K−K+,KS0KS0D^0 \to \pi^- \pi^+, K^- K^+, K_{\rm S}^0 K_{\rm S}^0

This paper analyzes singly Cabibbo-suppressed D0D^0 decays within the Standard Model, demonstrating that non-factorisable corrections of approximately 50% suffice to explain measured branching fractions and predicting that the direct CP asymmetry in D0→KS0KS0D^0 \to K_{\rm S}^0K_{\rm S}^0 remains at the per-mille level.

Robert Fleischer, Maria Laura Piscopo, K. Keri Vos, B. Yağmur Zubaroğlu2026-07-14
⚛️ phenomenology

Constraints on Ultra-Light Axions from the DESI DR1 Full Shape, Planck and ACT

This paper presents the most stringent constraints to date on ultra-light axions as a dark matter subcomponent in the mass range 10−3210^{-32} to 10−2410^{-24} eV, derived from a full-shape analysis of DESI DR1 galaxy power spectra combined with Planck and ACT CMB data, which significantly improves upon CMB-only limits and reveals that a mild preference for axions seen in galaxy clustering data disappears when CMB data is included.

Francesco Verdiani, Emanuele Castorina, Ennio Salvioni, Emiliano Sefusatti, Matteo Viel2026-07-14
⚛️ phenomenology

Signatures of 10−104 M⊙10-10^4\,{\rm M}_{\odot} Dark Matter halos in LISA via Stochastic Diffraction

This paper proposes that the stochastic wave-optics lensing of gravitational waves by low-mass dark matter halos (10–104 M⊙10\text{--}10^4\,M_\odot) imprints a unique "dark timbre" on LISA signals, which can be detected by stacking hundreds of binary events to confirm cold dark matter predictions or constrain alternative small-scale structure models.

Han Gil Choi, Juan Urrutia, Miguel Zumalacárregui2026-07-14