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 of Non-Abelian Gauge and Goldstone Bosons in a U(2) Flavor Model

This paper investigates the phenomenology of pseudo-Nambu-Goldstone bosons and light gauge bosons arising from the SU(2)FSU(2)_F subgroup of a U(2)FU(2)_F flavor model, demonstrating that their unsuppressed flavor-violating couplings allow low-energy flavor experiments to probe symmetry breaking scales up to 101210^{12} GeV, surpassing current astrophysical limits.

Lorenzo Calibbi, Jiangyi Yi2026-04-15⚛️ hep-ex

Nucleon decays into three leptons: contact contributions

This paper systematically investigates contact contributions to baryon number violating nucleon decays into three leptons by constructing a complete basis of dimension-9 operators in low-energy effective field theory, matching them to chiral perturbation theory to calculate decay widths, and deriving stringent constraints from experimental data while illustrating connections to ultraviolet-complete models.

Yi Liao, Xiao-Dong Ma, Xiang Zhao2026-04-15⚛️ hep-ph

Braking protons at the EIC: from invisible meson decay to new physics searches

This paper proposes that the Electron-Ion Collider (EIC) can significantly enhance sensitivity to invisible decays of pseudoscalar mesons and axion-like particles by detecting forward protons with reduced energy in coherent exclusive electroproduction, potentially improving existing bounds on meson branching ratios by up to four orders of magnitude and probing new physics couplings in the 0.1–2 GeV mass range.

Reuven Balkin, Ta'el Coren, Alexander Jentsch, Hongkai Liu, Maksym Ovchynnikov, Yotam Soreq, Sokratis Trifinopoulos2026-04-15⚛️ hep-ph

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⚛️ hep-ex

Quark and Lepton Masses, Baryon Asymmetry, and Neutrino Mass from a Supersymmetric Preon Model

This paper proposes a supersymmetric preon model where Standard Model fermions are three-body composites confined by a Maxwell-Chern-Simons interaction, successfully reproducing observed quark mass ratios and neutrino masses via Pauli principle constraints and a Type I seesaw mechanism while simultaneously generating the baryon asymmetry of the universe through anomaly inflow and dynamically deriving R-parity.

Risto Raitio2026-04-15✓ Author reviewed ⚛️ hep-ph

Spin Correlation and Quantum Entanglement of Fermion Pairs in Transversely Polarized ee+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⚛️ hep-ph

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 aeμa \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⚛️ hep-ph

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⚛️ hep-th