hep-ph papers | Gist.Science

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.

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⚛️ nucl-th

Machine Learning for Predicting the Proton Structure Function $F_2^P$ 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 $F_2^p$ by capturing complex nonlinear QCD dynamics without solving DGLAP evolution equations.

Shahin Atashbar Tehrani, Elham Astaraki, Fatemeh Arbabifar2026-06-05✓ Author reviewed ⓘ⚛️ hep-ph

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

This paper presents a comprehensive study of anomalous quartic gauge couplings in same-sign $W$ 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⚛️ hep-ex

Method to study $CP$ violation in $B_s^0\to K_S K^\pm \pi^\mp$ decays

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

Chen Chen, Tim Gershon, Thomas Latham2026-06-05⚛️ hep-ph

Phenomenology of Inflaton-Driven Early QCD Confinement and Solution to Axion Isocurvature Problem

This paper proposes a mechanism where a direct inflaton-gluon coupling dynamically raises the QCD confinement scale during inflation to suppress axion isocurvature perturbations while allowing for later axion dark matter production, embedding this scenario in $\alpha$ -attractor models to derive constraints on reheating and supersymmetry breaking scales.

Evangelos I. Sfakianakis, Barmak Shams Es Haghi, Katherine Freese2026-06-05⚛️ hep-ph

Subleading Effects in Soft-Gluon Emission at One-Loop in Massless QCD

This paper elucidates the structure of next-to-leading-power soft-gluon emissions in arbitrary one-loop massless QCD amplitudes by deriving universal operators and novel double-collinear tree-level expansions, resulting in simplified, derivative-free formulae that are validated numerically for processes with up to six partons.

Michał Czakon, Felix Eschment, Tom Schellenberger2026-06-04⚛️ hep-ph

Dark matter relic density in strongly interacting dark sectors with light vector mesons

This paper demonstrates that in strongly interacting dark sectors where light vector mesons enable the $3\pi_D \to \pi_D \rho_D$ process, dark matter freeze-out is significantly delayed, leading to a higher preferred mass scale that naturally evades Bullet Cluster constraints.

Elias Bernreuther, Nicoline Hemme, Felix Kahlhoefer, Suchita Kulkarni2026-06-04⚛️ hep-ph

Proposal for a shared transverse LLP detector for FCC-ee and FCC-hh and a forward LLP detector for FCC-hh

This paper proposes the design of two dedicated long-lived particle (LLP) detectors, DELIGHT and FOREHUNT, for the Future Circular Collider (FCC) facility, featuring a novel shared transverse detector for both FCC-ee and FCC-hh runs to optimize costs and significantly enhance sensitivity to elusive new physics.

Biplob Bhattacherjee, Camellia Bose, Herbi K. Dreiner, Nivedita Ghosh, Shigeki Matsumoto, Swagata Mukherjee, Rhitaja Sengupta, Anand Sharma2026-06-04⚛️ hep-ex

Hints for a Geon from Causal Dynamic Triangulations

Using four-dimensional causal dynamical triangulation simulations, this paper presents evidence for the existence of massive geons—self-bound graviton states—through curvature-curvature correlators, suggesting potential implications for dark matter and primordial black holes while noting a connection between their mass and the expansion phase of the de Sitter universe.

Axel Maas, Simon Plätzer, Felix Pressler2026-06-04⚛️ hep-lat

When backgrounds become signals: neutrino interactions in xenon-based dark matter detectors

This paper analyzes recent electron and nuclear recoil data from XENONnT, PandaX-4T, and LUX-ZEPLIN to probe both Standard Model and Beyond the Standard Model physics, highlighting how xenon-based dark matter detectors can uniquely complement dedicated neutrino experiments by providing sensitivity to solar neutrino interactions and flavor-dependent new physics effects.

M. Atzori Corona, M. Cadeddu, N. Cargioli, F. Dordei, M. Sestu2026-06-04⚛️ hep-ex

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