1434 papers
Hep-Ex explores the fascinating intersection where particle physics meets experimental reality. This field investigates how scientists build massive detectors and accelerate particles to test the fundamental laws of nature, turning abstract theories into measurable data. It is the rigorous process of searching for new particles or forces that could reshape our understanding of the universe, often requiring years of collaboration and engineering.
At Gist.Science, we ensure these discoveries become accessible to everyone. We process every new preprint in this category directly from arXiv, generating both plain-language explanations for curious readers and detailed technical summaries for specialists. Our goal is to bridge the gap between complex experimental results and public understanding without losing scientific nuance.
Below are the latest papers in Hep-Ex, freshly summarized and ready for you to explore.
This paper establishes a comprehensive Spin Density Matrix framework for analyzing polarization transfer in the decay chain , demonstrating that the state perfectly preserves the initial polarization in the dominant -wave limit while providing a unified method to quantify -wave deviations and extend these insights to other hadronic and electroweak processes.
This paper investigates the energy loss of high-energy partons in anisotropic plasmas within the harmonic approximation, deriving a simple formula for the impact of anisotropy and demonstrating that the resulting medium length dependence exhibits universal limiting attractor characteristics consistent with QCD kinetic theory simulations.
This paper generalizes soft and collinear factorization in perturbative QCD to multi-collinear configurations, demonstrating how generalized splitting amplitudes encode the breaking of strict collinear factorization in space-like limits and the failure of naive multiplicative factorization in simultaneous soft-collinear regimes.
This report reviews recent progress in fixed-order computations, essential ingredients like parton distribution functions and subtraction methods, and identifies necessary higher-order corrections for Standard Model processes to match anticipated LHC experimental precision, continuing the biennial Les Houches tradition.
This paper demonstrates that the Circular Electron Positron Collider (CEPC) can efficiently test the 95 GeV scalar hypothesis in the Higgsstrahlung channel by identifying 210 GeV as the optimal center-of-mass energy and utilizing deep neural networks to significantly reduce the luminosity required for discovery and precision measurement.
This paper presents an energy-core-based photon reconstruction method utilizing the Hough transform, which achieves near-perfect efficiency and separation for high-energy photons in dense environments, as validated by simulations of the CEPC crystal electromagnetic calorimeter.
This paper honors Henry Primakoff by reviewing his legacy and recent experimental tests of Chiral Perturbation Theory via Primakoff reactions at CERN and Jefferson Laboratory, which confirm two-flavor predictions while highlighting the need for future measurements with kaons and eta mesons to validate three-flavor theories involving strange quarks.
This paper proposes a modularized, fully differentiable deep learning architecture that generates physically consistent radio pulse signals from in-ice neutrino interactions, enabling gradient-based optimization of the future IceCube-Gen2 detector design.
Using the STAR experiment at RHIC, researchers observed significant sequential suppression of charmonium states in Ru+Ru and Zr+Zr collisions at 200 GeV, demonstrating that the larger (2S) meson is suppressed more strongly than the J/ meson with a 5.6 standard deviation significance.
This paper details the design, mass production, and acceptance testing of the high-voltage dividers, waterproof cables, and connectors for the over 25,600 3-inch photomultiplier tubes used in the JUNO central detector.