3393 papers
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.
This paper derives a model-independent upper limit on the amplitude of a chiral gravitational wave background produced before the electroweak epoch, which, for high reheating temperatures, provides a significantly more stringent constraint than standard big bang nucleosynthesis bounds at frequencies above the MHz scale.
This paper calculates the ground-state energy levels and hyperfine structure of three- and four-particle lepton bound states in quantum electrodynamics using a variational method with Gaussian basis functions that accounts for pairwise spin-spin interactions.
This paper introduces VarP-GP, a cost-efficient Bayesian emulator that leverages variable statistical precision in Monte Carlo simulations to significantly reduce uncertainty in quark-gluon plasma modeling, thereby enabling previously infeasible multi-model calibrations of high-energy nuclear collision data.
This paper presents an automated, process-independent NLO-matched QED parton shower method that resolves challenges posed by lepton structure function singularities and provides the first EW NLO+PS predictions for production at proposed FCC-ee energies.
This paper demonstrates a proof-of-concept where AI agents, directed by expert physicists, independently performed a complete precision measurement of the thrust distribution in LEP ALEPH data, marking a significant step toward integrating AI into the theory-experiment loop to accelerate discoveries in fundamental physics.
This paper reviews recent advancements in the antenna subtraction method for QCD calculations, highlighting the application of generalized antenna functions at NNLO and presenting the first fully antenna-subtracted NLO differential calculation for jet production at electron-positron colliders.
This paper presents the first systematic lattice QCD study of proton- scattering across multiple pion masses and lattice spacings, yielding scattering parameters and cross sections that agree with experimental data and confirm attractive interactions critical for nuclear theory and neutron star modeling.
This paper proposes an improved Two Higgs Doublet Model derived from six-dimensional $SU(4)$ gauge theory compactified on an orbifold, where the inclusion of brane-localized gauge kinetic terms naturally enforces CP conservation and symmetry at tree level while allowing for the generation of soft symmetry-breaking masses and the Standard Model Higgs mass at the one-loop level.
This paper demonstrates that different, formally equivalent resummation prescriptions for the thrust distribution in annihilation yield non-negligible numerical differences that exceed standard theoretical uncertainties, thereby necessitating more conservative error estimates in strong coupling determinations.
This paper computes the complete set of leading-twist gluon and sea-quark generalized transverse momentum distributions (GTMDs) in the small- eikonal approximation at vanishing skewness, establishing universal relations among them and projecting the results onto transverse momentum dependent distributions (TMDs) and generalized parton distributions (GPDs) to guide phenomenological modeling and enable explicit calculations.