2610 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 investigates double quarkonium production in polarized hadronic collisions using the Color-Singlet Model and TMD factorization to demonstrate that measuring azimuthal modulations in specific kinematic regions at COMPASS and AMBER can provide direct access to quark distributions and enable a further test of the quark Sivers function sign change.
This paper demonstrates that the JUNO experiment's ability to determine the neutrino mass ordering could be severely compromised or completely lost due to a previously unrecognized resonant enhancement of the mixing angle induced by scalar non-standard neutrino interactions.
Using 140 fb of ATLAS data from 13 TeV proton-proton collisions, this paper presents precise measurements of inclusive and differential cross-sections in dilepton events, which are utilized to determine the top-quark pole mass and provide complementary production results.
This paper demonstrates that primordial temperature fluctuations modulate the axion mass during the QCD phase transition to trigger parametric resonance, which significantly enhances axion production and shifts the viable dark matter mass window to the higher range of .
This paper investigates two-body non-leptonic weak decays, demonstrating that long-distance triangle rescattering processes mediated by pion exchange dominate over negligible short-distance contributions, and provides theoretical predictions for branching fractions of specific channels to guide future experimental studies at BESIII, Belle(-II), and LHCb.
This paper demonstrates that a ResNet-based convolutional neural network, augmented with soft scoring and an auxiliary regression head, significantly outperforms traditional boosted decision trees and dense neural networks in discriminating photons from pions amidst overlapping electromagnetic showers in high-luminosity collider environments.
This paper presents the detector configuration, calibration methods, and performance characterization of the LiFE-SNS experiment, which utilizes tritium-embedded LiF crystals and magnetic microcalorimeters to achieve precision measurements of the tritium spectrum for the search of keV-scale sterile neutrinos.
This paper proposes a fully data-driven, weakly supervised bidirectional conditional diffusion network that iteratively simulates and reconstructs photomultiplier tube waveforms to accurately resolve overlapping photoelectrons without requiring ground-truth labels.
This paper introduces MoreFit, a high-performance framework for unbinned maximum likelihood parameter estimation in particle physics that leverages just-in-time compiled computation graphs, novel automatic optimizations, and heterogeneous backends (OpenCL and LLVM/Clang) to achieve superior speed and efficiency across diverse hardware platforms.
This paper systematically evaluates the sensitivity of four semi-supervised anomaly detection methods to untunable hyperparameters in the search for Beyond the Standard Model physics and proposes a robust, non-parametric permutation test for statistical assessment.