1429 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 demonstrates that, contrary to the limitations observed in DC magnetometry, entangled GHZ states can enhance the sensitivity of AC magnetometry under parallel Markovian decoherence by scaling the interaction time as to mitigate noise effects and improve the detectable frequency bandwidth.
This paper demonstrates that rapid frequency jitter in high-quality resonant systems, such as the Dark SRF experiment, causes minimal power loss, thereby refining dark-photon exclusion bounds to establish world-leading laboratory limits on the photon mass below .
This paper reports a nearly two-orders-of-magnitude improvement in the precision spectroscopy of an inner-shell orbital clock transition in neutral ytterbium using a three-dimensional magic-wavelength optical lattice, enabling high-precision isotope shift measurements that set new bounds on hypothetical boson-mediated forces and advance applications in quantum science and new physics searches.
Using the topological-diagram approach within the framework, this paper investigates two-body decays into light scalar mesons and demonstrates that interpreting these mesons as tetraquark states provides a consistent explanation for experimental data, including the unexpectedly large branching fraction of , while predicting new decay rates that are accessible to current and future experiments.
This paper proposes a universal quantum measurement protocol that extracts the velocity and direction of light dark matter wind from the phase differences between quantum sensors, offering superior sensitivity compared to classical correlation methods without compromising detector performance.
Using 138 fb⁻¹ of 13 TeV proton-proton collision data collected by the CMS detector, this paper presents a model-independent measurement of the differential production cross section for Higgs bosons decaying to W boson pairs in association with two jets, utilizing a machine learning-derived variable to constrain Higgs couplings within the Standard Model effective field theory framework.
Using LHCb proton-proton collision data from 2016 to 2018, this paper reports a precise measurement of the branching fraction relative to and determines the isospin asymmetry between and decays.
This paper proposes a protocol for enhancing dark matter detection sensitivity by projecting quantum sensors into a collective excited state, which suppresses non-collective noise by a factor equal to the number of sensors without requiring the maintenance of entanglement during signal accumulation.
Using 2.82 years of data from the COSINE-100 experiment, researchers set the most stringent constraints to date on sub-GeV dark matter scattering with electrons in NaI(Tl) crystals, finding no excess events and establishing new upper limits on the scattering cross-section for both light and heavy vector boson mediators.
The Dark SRF experiment reports a world-leading constraint on non-dark-matter dark photons and the best laboratory-based limit on photon mass below 6 μeV, achieving an order-of-magnitude improvement in sensitivity through refined theoretical modeling of frequency instability.