2101 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 presents an optimized graph convolution framework, featuring efficient graph construction and specialized layers, to address particle identification and energy regression challenges in high-granularity calorimeters within resource-constrained environments.
This feasibility study demonstrates that the DUNE-PRISM concept can utilize a movable near detector to construct narrow virtual neutrino fluxes, enabling model-independent measurements of muon neutrino charged-current cross sections with high precision, although large exposures are required to achieve few-percent statistical uncertainties for differential measurements.
This paper provides an overview of how machine learning-based simulation-based inference methods can be applied within both Bayesian and frequentist frameworks to solve inverse problems, while also addressing their use in Empirical Bayes and unfolding tasks, along with validation strategies and inherent limitations.
This paper presents the first experimental exclusion limits on the agnostic neutrino Standard Model Effective Field Theory (SMEFT) parameter space by recasting a CMS search for heavy Majorana neutrinos in the same-sign dimuon plus two jets channel, constraining effective coupling strengths for heavy-neutrino masses between 200 GeV and 15 TeV.
This paper investigates ALP pair production at the LHC, demonstrating that the four-photon signature from the non-resonant process can significantly constrain the multidimensional parameter space of dimension-5 and dimension-6 ALP interactions, while also reinterpreting ATLAS Higgs-resonant search results to reveal complex, non-trivial constraints.
This paper improves the analysis of quark confinement in the proton by incorporating light-cone QCD sum rules and formulating the quark force reconstruction as a regularized inverse problem, yielding a less model-dependent determination that remains consistent with a linear QCD potential.
This paper revisits and refines the exclusion limits on a long-lived vector boson from the SLAC E141 experiment by performing a dedicated reanalysis with improved modeling of the experimental setup, thereby providing a more accurate assessment of the tension between these constraints and the ATOMKI anomaly.
Using the full Run 2 and partial Run 3 datasets from the ATLAS experiment, this paper presents the first evidence of boosted Higgs boson production in the di- final state with a significance of 3.8 standard deviations, achieved through dedicated reconstruction techniques for high-transverse-momentum Higgs bosons ( GeV) and reporting both inclusive and differential cross-section measurements.
This paper introduces and evaluates two methods to decorrelate neural network scores from -hadron lifetimes in the LHCb topological trigger, addressing biases caused by misassociated decay products in high-pileup environments to ensure unbiased event selection for physics analyses.
This paper reviews the historical achievements of the CERN SPS fixed-target program in Quark-Gluon Plasma studies and outlines the future physics program involving NA61 and the newly approved NA60+/DiCE experiment to further explore the QCD phase diagram at finite baryon chemical potential.