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 experiments

Study of time-like electromagnetic form factors of Λ, Σ\Lambda,~\Sigma and Ξ+\Xi^{+} in light-front quark model

This paper employs a light-front quark model based on the Bethe-Salpeter formalism to calculate the time-like electromagnetic form factors of Λ\Lambda, Σ\Sigma, and Ξ\Xi hyperons, demonstrating that the results, including effective form factors and the ratio of electric to magnetic form factors at specific q2q^2 values, closely match experimental data from the BESIII collaboration.

Chong-Chung Lih, Chao-Qiang Geng2026-04-15
⚛️ phenomenology

Spin Correlation and Quantum Entanglement of Fermion Pairs in Transversely Polarized e−e+e^-e^+ Collisions

This paper demonstrates that transversely polarized electron-positron collisions serve as a powerful tool for generating and controlling quantum entanglement in fermion pairs, producing maximally entangled states in QED processes and significantly enhancing entanglement in electroweak and Bhabha scattering scenarios.

Yi-Jing Fang, Amit Bhoonah, Kun Cheng, Tao Han, Yandong Liu, Hao Zhang2026-04-15
⚛️ phenomenology

ALP production in Lepton Flavour Violating meson, tau and gauge boson decays

This paper investigates the production and prompt decay of axion-like particles (ALPs) with lepton-flavour-violating couplings in the mass regime above the muon threshold, proposing new search strategies across meson, gauge boson, quarkonium, and tau decays to leverage the distinctive a→eμa \to e\mu signature and assess the discovery potential of future high-energy and fixed-target experiments.

Marco Ardu, Lorenzo Calibbi, Marco Fedele, Federico Mescia2026-04-15
⚛️ high-energy theory

From Vacuum to Nucleon: Exact Fixed-Scale Matching of Holographic Current Correlators to QCD

This paper demonstrates that holographic QCD can be exactly matched to perturbative QCD at a fixed scale by deriving a factorized Compton amplitude where the universal ultraviolet photon vertex reproduces the Wilson coefficients of the singlet conformal operator product expansion, thereby extending vacuum current-correlator matching to the off-forward hadronic current-current correlator relevant for DDVCS/DVCS.

Kiminad A. Mamo2026-04-15
⚛️ high-energy theory

Holographic Open/Closed Exchange in Double Deeply Virtual Compton Scattering: Fixed--jj Structural Matching to the ±\pm-Basis Wilson Coefficients

This paper demonstrates that in the collinear regime, holographic double deeply virtual Compton scattering (DDVCS) amplitudes derived from Witten diagrams structurally match the ±\pm-basis Wilson coefficients of perturbative QCD at a fixed scale, with the open and closed string channels corresponding to the (+)(+) and (−)(-) eigenchannels respectively, governed by a universal hypergeometric hard kernel and distinct branch-point structures.

Kiminad A. Mamo2026-04-15
⚛️ phenomenology

The 3-3-1 Model: a natural framework for sub-MeV dark matter

This paper demonstrates that the SU(3)C × SU(3)L × U(1)N model with right-handed neutrinos naturally provides a testable TeV-scale framework for sub-MeV dark matter, where a pseudo-Goldstone boson acquires a tiny mass via gravitational effects and achieves the observed relic abundance through freeze-in in a low-reheating temperature scenario without requiring tiny couplings.

Vinicius Oliveira, D. Cogollo, A. Doff, C. A. de S. Pires2026-04-15
⚛️ phenomenology

Probing Collapsed Dark Matter Halos with Fast Radio Bursts

This paper proposes that strong gravitational lensing of Fast Radio Bursts (FRBs) by core-collapsed Self-Interacting Dark Matter (SIDM) subhalos can effectively probe small-scale dark matter structures and constrain self-interaction cross-sections, leveraging the enhanced lensing cross-sections and longer time delays predicted for these collapsed halos compared to standard Cold Dark Matter models.

Yuxuan He, Weiyang Wang, Chen Zhang, Yi-Ming Zhong2026-04-15
⚛️ high-energy experiments

Cross-Domain Transfer with Particle Physics Foundation Models: From Jets to Neutrino Interactions

This paper demonstrates that the OmniLearned particle physics foundation model, pre-trained on high-energy collision data, can be effectively transferred to low-energy fixed-target neutrino experiments to outperform models trained from scratch on tasks like energy regression and pion classification, thereby validating the potential for detector-agnostic inference across vastly different energy scales and physics processes.

Gregor Krzmanc, Vinicius Mikuni, Benjamin Nachman, Callum Wilkinson2026-04-15