5447 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 evaluates the potential of the Electron-Ion Collider in China (EicC) to significantly reduce uncertainties in Compton Form Factors for Deeply Virtual Compton Scattering by employing a neural-network framework fitted to global data and projected EicC pseudo-data.
This study utilizes the extended Linear-Sigma Model to demonstrate that incorporating SU(4) quark degrees of freedom yields meson mass predictions more consistent with experimental data than SU(3) models, while revealing that although meson masses exhibit unique temperature-dependent behaviors, they generally dissolve within a similar critical temperature range, with quarkonium states remaining largely unaffected.
This paper demonstrates that Vision Transformers, building on the CaloDREAM architecture, provide a universal, robust, and scalable solution for fast calorimeter simulations across diverse detector geometries, achieving Geant4-level accuracy with millisecond generation times and improved data efficiency through pretraining and fine-tuning.
This paper demonstrates that within the Randall-Sundrum extra-dimensional framework, where Standard Model and dark matter fields reside on the IR brane and interact via graviton and radion portals, the observed dark matter relic abundance and baryon asymmetry can be simultaneously explained through freeze-in production and TeV-scale leptogenesis, respectively, while satisfying cosmological constraints and being subject to current LHC graviton search limits.
This paper presents a novel Helicity Softer Dipole Pomeron model based on Regge theory that successfully describes the cross sections and spin observables of vector meson photoproduction by arbitrarily polarized photons across a wide energy range, significantly improving upon previous models and offering predictions for future experiments and cosmic-photon polarimetry.
This paper employs the Hamilton-Jacobi formalism to generalize slow-roll inflation through non-standard entropy frameworks, introducing a novel Hubble parametrization that yields observationally consistent constraints on Tsallis, Rényi, and Kaniadakis parameters while analyzing the impact of tensor-to-scalar ratio uncertainties on model viability.
Using soft X-ray data from India's Chandrayaan-2 mission, this study sets significantly stronger constraints on axion-nucleon and axion-photon couplings for solar axions produced in Fe nuclear transitions compared to those from Kr, due to a nearly three-order-of-magnitude difference in their respective fluxes despite similar effective couplings.
This paper proposes a mechanism for generating the observed baryon asymmetry via a CP-violating hidden sector portal that sequesters equal and opposite baryon numbers, demonstrating that while top quark decays suffice for generic parameters, bottom quark decays and mesogenesis scenarios require resonant enhancement to achieve maximal efficiency and are potentially testable with improved branching ratio measurements.
This paper presents precise NLO+NLL QCD calculations for associated production via gluon fusion at the LHC, demonstrating that threshold resummation enhances the cross-section by approximately 20% and significantly reduces scale uncertainties compared to fixed-order NLO results, while also combining these findings with Drell-Yan type calculations to achieve the most accurate predictions for hadron collisions.
This paper proposes a freeze-in mechanism for vector dark matter in a low-reheating-temperature cosmology, demonstrating that the non-abelian structure allows for sizable couplings consistent with observed relic abundance that are potentially detectable by current and future direct detection experiments.