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.

⚛️ general relativity

Unveiling the spectral morphological division of fast radio bursts with CHIME/FRB Catalog 2

Using unsupervised machine learning on the CHIME/FRB Catalog 2, this study reveals that fast radio bursts naturally divide into two spectral morphology-based clusters, suggesting that the observed differences between repeating and nonrepeating sources arise from selection effects rather than distinct physical populations.

Wan-Peng Sun, Yin-Long Cao, Yong-Kun Zhang, Ji-Guo Zhang, Xiaohui Liu, Yichao Li, Fu-Wen Zhang, Wan-Ting Hou, Jing-Fei Z (…)2026-08-27
⚛️ high-energy experiments

Constraints on non-standard neutrino interactions from Borexino extended data-set

This paper presents an updated analysis of Borexino Phase-III data that establishes tighter constraints on flavor-diagonal non-standard neutrino interactions than previous studies and, for the first time, provides a comprehensive exploration of the full parameter space including off-diagonal NSI terms.

V. Antonelli, D. Basilico, G. Bellini, J. Benziger, R. Biondi, B. Caccianiga, F. Calaprice, A. Caminata, A. Chepurnov, D (…)2026-08-27
⚛️ phenomenology

Probing sub-GeV dark matter through dark matter-electron scattering in the superheated C2H2F4C_2H_2F_4 target of the InDEx experiment

This paper projects the sensitivity of the InDEx experiment's superheated C2H2F4\mathrm{C_2H_2F_4} target to sub-GeV dark matter via electron scattering, demonstrating that by lowering operating temperatures to achieve thresholds as low as 26.8 eV, the experiment can probe dark matter masses down to approximately 12 MeV and set competitive upper limits on dark-photon-mediated scattering cross sections.

Utkarsh Patel, Astitva Kathait, Mala Das2026-08-27
⚛️ phenomenology

A Rotational Perturbative Correction to Democratic Neutrino Mixing and JUNO Compatibility

This paper proposes a unitary, rotationally perturbed democratic mixing matrix with additional real parameters to reconcile the previously excluded model with current neutrino oscillation data from NuFIT 6.1 and the JUNO experiment, while analyzing the resulting allowed and disallowed textures.

Maibam Ricky Devi (Gauhati U.), Swaraj Kumar Nanda (ITER, SOA U.), Sudhanwa Patra (IIT Bhilai)2026-08-27
⚛️ phenomenology

Pair production of hh in the U(1)XU(1)_XSSM

This paper investigates the pair production of the lightest neutral Higgs boson via gluon fusion at the 14 TeV LHC within the U(1)XU(1)_XSSM framework, demonstrating that the model's new gauge couplings (gXg_X and gYXg_{YX}) induce significant one-loop corrections to the cross-section that remain viable under current experimental constraints.

Yue-Tong Liu, Shu-Min Zhao, Meng-Zi Cao, Shuang Di, Rong-Zhi Sun, Xing-Xing Dong2026-08-27
⚛️ phenomenology

Quantum-Kinetic Leptogenesis and Gravitational Waves from Seesaw-Assisted Domain-Wall Dynamics

This paper proposes a theoretical framework linking resonant leptogenesis in a minimal two-right-handed-neutrino seesaw model with a real singlet scalar to a primordial stochastic gravitational-wave background, where radiative vacuum-energy bias drives domain-wall annihilation and establishes a consistency relation between neutrino parameters and gravitational-wave signals.

Gayatri Ghosh2026-08-27