5500 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 thermal leptogenesis in the canonical type-I seesaw framework retains a "memory" of asymmetries generated by heavier right-handed neutrinos through flavor-projection effects, which partially survive the washout of the lightest neutrino and significantly modify the final asymmetry beyond the predictions of classical Boltzmann equations.
This paper constrains the decay lifetimes and couplings of various light bosonic dark matter models by analyzing electron-positron fluxes from INTEGRAL 511 keV line data, eROSITA X-ray continuum spectra, and Voyager cosmic-ray observations, finding that 511 keV data dominate limits below 1 GeV while eROSITA provides the strongest constraints between 1 and 10 GeV.
This paper utilizes energy conservation laws and gravity-hydrodynamics analysis to determine the low-frequency analytic structure of stress-energy correlation functions in Quark-Gluon Plasma, thereby deriving new Kubo formulae for transport coefficients and relaxation times while addressing subtleties in limit-taking procedures.
This study employs QCD sum rules to systematically analyze zero-isospin pentaquark states, successfully distinguishing their negative parity contributions and identifying candidates with that naturally explain the observed and resonances in the mass spectrum.
This study establishes a transparent framework to constrain the initial mass fraction of primordial black holes that evaporate before primordial nucleosynthesis, demonstrates that observable effects require masses greater than g, with maximum sensitivity at g, and provides public code to facilitate future updates.
Using the QCD sum rule method, this paper investigates the masses, decay widths, and dominant decay channels of the hypothetical scalar molecules () and (), predicting them to be strong-interaction unstable particles with masses of approximately 15.7 GeV and 9.7 GeV, respectively, to guide future experimental searches.
This study demonstrates that a physics-informed neural network (PINN), which incorporates the two-component framework and hard-scattering constraints, outperforms conventional data-driven neural networks in predicting charged particle multiplicity in heavy-ion collisions, particularly in sparse high-multiplicity regions and when generalizing to unseen collision systems like Au+Au.
This contribution presents updated bounds on operators of the Standard Model effective field theory (SMEFT) constrained by Higgs boson observables under various flavor assumptions, and demonstrates how precise Higgs measurements are becoming increasingly significant for establishing lower limits on new physics scales, while simultaneously emphasizing the importance of scale evolution and consistency with existing literature.
This paper investigates the proton's Wehrl entropy using a gluon light-front spectator model based on soft-wall AdS/QCD wave functions, demonstrating how to decompose this entropy into entanglement and transverse components via a Husimi distribution derived from Wigner distributions, with numerical results for entanglement entropy showing agreement with CMS data.
This paper investigates top-quark pair production in electron-positron collisions within the minimal noncommutative Standard Model using the Seiberg-Witten map, demonstrating that space-time noncommutativity induces significant, measurable deviations in cross-sections and angular distributions at future linear collider energies.