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

The Sensitivity of DUNE in Presence of Off-Diagonal Scalar NSI Parameters

This paper investigates how complex off-diagonal scalar non-standard interactions (NSI) and their associated phases impact the Deep Underground Neutrino Experiment's (DUNE) sensitivity to the leptonic CP phase, revealing significant modifications to CP measurements, potential degeneracies with the CP phase, and dependencies on the absolute neutrino mass scale.

Arnab Sarker, Dharitree Bezboruah, Abinash Medhi, Moon Moon Devi2026-02-05
⚛️ high-energy experiments

Sensitivity to New Physics Phenomena in Anomaly Detection: A Study of Untunable Hyperparameters

This paper systematically evaluates the sensitivity of four semi-supervised anomaly detection methods to untunable hyperparameters in the search for Beyond the Standard Model physics and proposes a robust, non-parametric permutation test for statistical assessment.

Fernando Abreu de Souza, Maura Barros, Nuno Filipe Castro, Miguel Crispim Romão, Céu Neiva, Rute Pedro2026-02-05
⚛️ phenomenology

Novel method to trace the dark matter density profile around supermassive black holes with AGN reverberation mapping

This paper proposes and tests a novel method using AGN reverberation mapping of multiple emission lines to constrain dark matter density profiles around supermassive black holes, finding tentative evidence for a universal profile with a steepness index of γ∼1.6\gamma \sim 1.6 while highlighting the need for improved systematic uncertainties in future campaigns.

Mayank Sharma, Gonzalo Herrera, Nahum Arav, Shunsaku Horiuchi2026-02-05
⚛️ nuclear theory

Self-bound hybrid stars with strong phase transitions can relieve major compact star observation tensions

This study proposes that self-bound hybrid stars characterized by strong phase transitions and large density discontinuities can simultaneously resolve multiple observational tensions regarding the masses, radii, and tidal deformabilities of various compact objects, including anomalous low-mass pulsars, the massive GW190814 secondary, and standard NICER measurements.

Chen Zhang, Juan M. Z. Pretel, Renxin Xu2026-02-05
⚛️ phenomenology

Searching the possibility of a0(1450)a_0(1450) scalar state being a diquark structure via charmed meson semileptonic decays

This paper investigates the diquark structure hypothesis of the a0(1450)a_0(1450) scalar state by employing QCD light-cone sum rules to calculate transition form factors, branching fractions, and angular observables for the semileptonic decays D→a0(1450)ℓνℓD \to a_0(1450)\ell\nu_\ell, ultimately yielding branching fractions on the order of 10−610^{-6}.

Ya-Lin Song, Yin-Long Yang, Ye Cao, Xue Zheng, Hai-Bing Fu2026-02-05