1472 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 proposes a holistic approach and Advanced Color Singlet Identification (ACSI) using state-of-the-art AI to simultaneously classify physics events and associate final-state particles with parent bosons, significantly improving the accuracy of Higgs boson decay measurements at future high-energy colliders.
This paper derives updated constraints on flavor-violating boson couplings to quarks, demonstrating that low-energy flavor experiments currently provide significantly tighter bounds (ranging from to ) than existing collider searches and presenting future sensitivity projections.
This paper proposes an extended inelastic Higgs-portal complex singlet model that simultaneously explains dark matter, the Galactic Center gamma-ray excess, and the baryon asymmetry of the universe through a two-step electroweak phase transition featuring spontaneous CP violation, while predicting gravitational wave signals detectable by future space-based observatories.
Using a dataset of 121.3 million decays collected by the BaBar detector, this study presents the first measurements of angular distributions and improved branching fractions for transitions while finding no evidence for the decay mode.
This paper reports the successful characterization of an FBK NUV-HD-cryo silicon photomultiplier operated at 9.4 mK within a dilution refrigerator, demonstrating its viability for detecting cosmic-ray muons in low-background dark matter experiments like QUEST-DMC.
This study establishes a low-energy ion injection scheme into a gaseous detector and measures the ionization yield of fluorine ions in low-pressure gas, finding a value of 0.45 at 30 keV to improve the accuracy of direction-sensitive dark matter search experiments.
This paper proposes GravNet, a conceptual design for a global network of geographically separated detectors operating in strong magnetic fields to search for high-frequency gravitational waves (MHz to GHz) by synchronizing measurements to distinguish signals from noise and enhance detection significance.
This paper proposes a novel cogenesis framework based on the type-I Dirac seesaw mechanism, where the out-of-equilibrium decays of heavy vector-like fermions simultaneously generate the baryon asymmetry and an asymmetric dark matter component, allowing for successful cogenesis with dark matter masses ranging from 100 MeV to 39 TeV while remaining testable through neutrino, dark matter, CMB, and gravitational wave observations.
This paper introduces PySiPMGUI, an open-source, platform-independent Python-based graphical user interface that automates the characterization of Silicon Photomultipliers (SiPMs) using PyVISA-controlled instruments to support quality assurance in diverse high-energy and astroparticle physics experiments.
Using 138 fb of proton-proton collision data at = 13 TeV collected by the CMS detector, this study presents the first comparison of corrected dijet angular distributions with next-to-next-to-leading order perturbative QCD predictions including electroweak corrections and sets the most stringent limits to date on various beyond-the-standard-model scenarios, including quark compositeness, extra dimensions, and anomalous gluon couplings.