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.

First determination of vector and tensor couplings from polarized πΔ\pi\Delta photoproduction

This paper utilizes a Regge framework applied to high-energy polarized πΔ\pi\Delta photoproduction data from GlueX to achieve the first complete determination of the vector and tensor couplings between the NΔN\Delta system and the ρ\rho, b1b_1, and a2a_2 mesons.

Vanamali Shastry, Łukasz Bibrzycki, Vincent Mathieu, Glòria Montaña, Alessandro Pilloni, César Fernández-Ramírez, Robert J. Perry, Arkaitz Rodas, Adam P. Szczepaniak, Daniel Winney2026-06-09⚛️ hep-ph

Earth-Density Stratification and Quantum Gravity Corrections in Long-Baseline Neutrino Oscillation Experiments

This paper presents a unified three-flavor analysis demonstrating that Earth's density stratification and Planck-scale quantum-gravity corrections act as correlated systematic uncertainties in long-baseline neutrino oscillations, where their interplay can significantly bias or even reverse the inferred CP-violating phase, particularly at baselines exceeding 5000 km.

Bipin Singh Koranga, Vivek Kumar Nautiya2026-06-09⚛️ hep-ph

A New Route to the Annihilation of Multi-Wall String Topological Configurations

This paper proposes a new mechanism for the annihilation of cosmologically problematic domain walls attached to cosmic strings in global U(1)U(1) symmetry models, demonstrating that radiative corrections from small bare fermion masses can generate a temperature-dependent bias that triggers the network's decay, using a majoron framework with right-handed neutrinos as a representative example.

Utsav Atta, Tathagata Ghosh, Sudip Manna2026-06-09⚛️ hep-ph

T-matrix analysis of pion-proton femtoscopy

This paper investigates the observed shift of the Δ(1232)\Delta(1232) resonance peak in pion-proton femtoscopic correlations by applying a T-matrix approach within the Koonin-Pratt framework to reveal how the finite emission source induces off-shell dynamics, though the model's inability to fully reproduce experimental correlation strength and the absence of a predicted high-momentum dip suggest the need for more complex source descriptions beyond a simple spherical Gaussian approximation.

Liang Zhang, Tianhao Shao, Song Zhang, Kai-Jia Sun, Yu-Gang Ma2026-06-09⚛️ nucl-th

Impact of NN^* and Λ\Lambda^* resonances on $CP$ violation in Λb0\Lambda_b^0 decays

This paper utilizes the constituent quark model to establish a comprehensive framework demonstrating that excited nucleon (NN^*) and hyperon (Λ\Lambda^*) resonances are the key drivers behind the first observed baryonic $CP$ violation in the four-body decay Λb0pKπ+π\Lambda_b^0\to pK^-\pi^+\pi^-, successfully reproducing the measured branching fraction and $CP$ asymmetry.

Yu-Kuo Hsiao, Kai-Lei Wang, Juan Wang2026-06-09⚛️ hep-ex

Probing Signatures of Right-Handed Neutrinos via bsννˉb \to s \nu \bar\nu Decays

Motivated by the recent Belle II measurement of B+K+ννˉB^+\to K^+\nu\bar{\nu}, this paper employs a model-independent effective field theory analysis to constrain right-handed neutrino interactions and predicts correlated enhancements in various bsννˉb\to s\nu\bar{\nu} branching fractions and polarization observables as testable signatures for future experiments.

Prisha, Priyanka Boora, Dinesh Kumar, Jitendra Kumar2026-06-09⚛️ hep-ph

Machine learning unveils the quark mass dependence of the pseudoscalar meson decay constants in three-flavour N2^2LO ChPT

This paper utilizes the LASSO machine learning method to analyze recent LQCD data within three-flavor N2^2LO Chiral Perturbation Theory, precisely determining the quark mass dependence of pseudoscalar meson decay constants up to 780 MeV and applying these results to predict octet baryon masses in the SU(3) limit.

Zejian Zhuang, Fernando Gil Domínguez, Raquel Molina2026-06-09⚛️ hep-lat