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.

⚛️ nuclear theory

Long-range scalar interactions in the effective field theory approach to 0νββ0\nu\beta\beta

This paper presents a compact, model-independent effective field theory formulation for neutrinoless double-beta decay that explicitly derives the dimensionally explicit half-life expression and a positivity bound for the coherent interference between two long-range scalar mechanisms, accounting for their complex coupling phases and specific nuclear matrix element ratios.

Fahim Ahmed2026-08-25
⚛️ nuclear theory

Eikonal Expansion for Classical Gluon Fields: from Weak to Strong

This paper develops a formal eikonal expansion for classical gluon fields, demonstrating that while the method works straightforwardly in the weak field limit to relate potentials to currents, it fails in the strong field regime due to nonlinear mixing of orders, a problem resolved by integrating out high longitudinal momentum modes to yield a renormalized effective action.

Shane Brown, Alex DeBrizzi, Alex Kovner2026-08-25
⚛️ phenomenology

Amplitude analysis and branching fraction calculations of BcB_c meson decays into BsπB_s\pi, DKπDK\pi and DsKKD_sKK final state mesons

This paper investigates newly observed Bc+B_c^+ meson decay modes into Dh+h−Dh^+h^- final states by calculating their branching fractions using the factorization approach, finding that the theoretical results align well with recent experimental measurements from the LHCb collaboration.

Elnaz Amirkhanlou, Behnam Mohammadi2026-08-25
⚛️ lattice

Calculation of neutron electric dipole moment from Lattice QCD

This paper presents a novel lattice QCD calculation of the neutron electric dipole moment induced by the QCD theta term using the Feynman-Hellmann theorem and background electric fields, yielding a result that confirms the strong-CP problem by constraining the theta angle to ∣θˉ∣≲10−11|\bar{\theta}|\lesssim 10^{-11}.

Thomas Blum, Fangcheng He, Taku Izubuchi, Luchang Jin, Hiroshi Ohki, Sergey Syritsyn2026-08-25
⚛️ nuclear theory

Charmonia at Finite Momentum and Spatial Correlators in Quark-Gluon Plasma

Using a thermodynamic T-matrix approach with a separable potential, state-of-the-art heavy-quark selfenergies, and particle-hole excitations, this study successfully reproduces lattice QCD results for charmonium spatial correlators at finite momentum, revealing that zero modes are essential for explaining the increase in Euclidean correlators but not for the suppression of spatial correlators.

Thomas Hardin, Ralf Rapp2026-08-25
⚛️ high-energy theory

Orbital Angular Momentum as a Transverse Probe of Elliptic Small-xx Gluon Tomography

This paper proposes using localized lepton wave packets carrying orbital angular momentum as a tunable transverse probe in hard diffractive dijet deep inelastic scattering to characterize elliptic small-xx gluon geometry, revealing that specific OAM channels induce finite-yield response nodes arising from spatial cancellations rather than a loss of scattering strength.

Wei Kou, Xurong Chen2026-08-25