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

QCD Sum Rule Analysis of a Compact D+D−K+D^{+}D^{-}K^{+}-Like Hidden-Charm Hexaquark with JP=0−J^{P}=0^{-}

Using QCD sum rules with six independent interpolating currents and including nonperturbative condensates up to dimension ten, this study predicts the mass of a compact JP=0−J^{P}=0^{-} hidden-charm hexaquark with D+D−K+D^{+}D^{-}K^{+} quark content to be in the range of 3.94–4.41 GeV, providing a theoretical reference for future experimental searches.

Jing-Yi Yan, Wen-Shuai Zhang, Liang Tang2026-06-05
⚛️ phenomenology

Pion transitions in the Born-Oppenheimer Effective Field Theory: a long distance approach

This paper proposes a Born-Oppenheimer effective field theory framework for pion transitions involving heavy quarkonium and exotic states with large sizes, deriving universal low-energy functions via a pion-string interaction Lagrangian to calculate and phenomenologically analyze long-distance dominated transition amplitudes where the standard QCD multipole expansion fails.

Joan Soto, Sandra Tomàs Valls2026-06-05
⚛️ nuclear theory

Diffusion of multiple conserved charges from entropy production

Using the Chapman-Enskog method within kinetic theory, this paper derives first- and second-order dissipative relativistic hydrodynamic equations for a multi-component quark-gluon plasma with baryon, electric, and strangeness charges, explicitly calculating the temperature and chemical potential dependence of the resulting diffusion matrix elements and their ratio to shear viscosity.

Samapan Bhadury, Arpan Das, Sandeep Chatterjee, Hiranmaya Mishra2026-06-05
⚛️ nuclear theory

On the Possibility of a Strong First-Order Phase Transition in Neutron Stars

By performing Bayesian inference on neutron star data from gravitational waves and X-ray observations alongside theoretical constraints from chiral effective field theory and perturbative QCD, this study finds evidence favoring a strong first-order phase transition in dense matter that likely occurs above the central density of the most massive neutron stars, thereby reconciling the need for a stiff equation of state with asymptotic softening.

Zheng Cao, Lie-Wen Chen2026-06-05
⚛️ phenomenology

Machine Learning for Predicting the Proton Structure Function F2PF_2^P in QCD

This paper presents a comparative study demonstrating that Multilayer Perceptron and Gaussian Process Regression models, trained on BCDMS experimental data, effectively predict the proton structure function F2pF_2^p by capturing complex nonlinear QCD dynamics without solving DGLAP evolution equations.

Shahin Atashbar Tehrani, Elham Astaraki, Fatemeh Arbabifar2026-06-05✓ Author reviewed ⓘ
⚛️ high-energy experiments

Probing anomalous quartic gauge couplings in same-sign WW boson scattering with polarization and spin correlation

This paper presents a comprehensive study of anomalous quartic gauge couplings in same-sign WW boson scattering at the LHC within the SM Effective Field Theory framework, demonstrating that combining angular asymmetries derived from polarization and spin correlations with conventional kinematic observables yields improved constraints on Wilson coefficients while ensuring unitarity safety.

Oscar J. P. Éboli, Rafiqul Rahaman, Amir Subba2026-06-05
⚛️ phenomenology

Method to study CPCP violation in Bs0→KSK±π∓B_s^0\to K_S K^\pm \pi^\mp decays

This paper proposes and demonstrates the feasibility of a novel, simultaneous tagged decay-time-dependent Dalitz-plot analysis method for Bs0→KSK±π∓B_s^0\to K_S K^\pm \pi^\mp decays to precisely measure the weak phase ϕseff\phi_s^{\rm eff} and search for new sources of CPCP violation, a technique implemented in the Laura++ package and validated through pseudoexperiments.

Chen Chen, Tim Gershon, Thomas Latham2026-06-05