5582 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 demonstrates that embedding natural inflation within Palatini gravity, specifically with the model where , restores its consistency with observational data, whereas models with fail to provide comparable improvements.
Using dispersion theory to account for strong pion-pion final-state interactions, this study demonstrates that the substructure near the threshold in decays can be reproduced without invoking an extra resonance, attributing the observed dip primarily to a helicity-flip amplitude rather than the virtual exchange of the state.
Using the covariant four-dimensional Bethe-Salpeter equation with an infrared-finite QCD running charge, this study determines a scale-dependent effective charm quark mass (ranging from 1.1 to 1.5 GeV) that successfully reproduces experimental leptonic decay constants for excited charmonium states with unprecedented theoretical precision.
This paper proposes a quantum-gravitational framework based on Schwarzian theory and ensemble averaging to resolve the cosmological constant problem by deriving the observed dark energy density and equation of state from the ensemble average of time-reparametrization modes.
This paper proposes a single-flavon Froggatt-Nielsen framework organized by a two-over-two lattice structure, where quark and charged-lepton mass hierarchies are reproduced as powers of a single parameter through the summation of three messenger chains that generate complex coefficients and CP violation.
This paper proposes that a minimal dark scalar with a mass of approximately 9.40 GeV, which shares high- fragmentation scaling with NRQCD color-octet production, can simultaneously explain the anomalous high- plateau in nuclear modification factors, the vanishing elliptic flow, and the quarkonium polarization puzzle in heavy-ion collisions while evading historical low- constraints.
This paper presents a comprehensive effective field theory pipeline that connects baryon number-violating new physics to low-energy hadronic observables by systematically matching Standard Model EFT operators up to dimension nine to Low-Energy EFT and chiral perturbation theory, thereby enabling a model-independent analysis that incorporates higher-dimensional operators and a broader class of ultraviolet completions than previously possible.
This paper introduces a self-supervised, transformer-based approach that generates oracle trajectories by scrambling and unscrambling mathematical expressions to achieve near-perfect symbolic simplification in high-energy physics tasks, significantly outperforming prior reinforcement learning and regression methods.
This paper proposes a unified framework where ultra-slow-roll inflation simultaneously generates primordial black hole dark matter, the baryon asymmetry via spontaneous baryogenesis, and a detectable stochastic gravitational wave background, establishing a predictive correlation between these phenomena that can be distinguished by future gravitational wave observatories like LISA, DECIGO, and the Einstein Telescope.
This paper demonstrates that perturbative reheating following inflation systematically suppresses the gravitational wave signals from cosmological phase transitions compared to standard radiation-dominated scenarios, while introducing characteristic spectral features that could serve as distinctive signatures of the modified expansion history.