2517 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 introduces the 1-Bit Quantum Filter, a resource-efficient quantum algorithm that reformulates particle tracking as binary ground-state filtering to achieve gate complexity, enabling realistic LHC event reconstruction on current Noisy Intermediate Scale Quantum (NISQ) hardware.
The ATLAS experiment presents a comprehensive combination of Higgs boson production and decay measurements using up to 140 fb of 13 TeV proton-proton collision data, yielding precise determinations of the inclusive event rate, coupling modifiers, the -quark running mass, and the total Higgs width, while also probing kinematic distributions within the Standard Model Effective Field Theory framework.
Using 138 fb of 13 TeV proton-proton collision data, the CMS collaboration performed the first search for resonant lepton-enriched semivisible jets, employing a dual machine-learning strategy to exclude mediator masses up to 4.7 TeV in the all-lepton scenario and between 1.8 and 3.5 TeV in the tau-enriched scenario.
This paper investigates spin-spin entanglement in Compton scattering across low and high energy regimes, establishing a no-go theorem for real amplitudes in unpolarized scattering and demonstrating that polarized scattering off nucleons produces diverse maximally entangled states sensitive to electromagnetic polarizabilities, thereby proposing entanglement as a novel probe for nucleon structure.
This Early Science Report from the ePIC Collaboration demonstrates that the Electron-Ion Collider's initial years of operation, utilizing realistic beam configurations and detailed detector simulations, will deliver world-leading insights into Quantum Chromodynamics by addressing core scientific pillars such as nucleon mass origin, spin structure, and dense gluonic matter, while simultaneously establishing methodologies for the full physics program.
This paper presents the first measurement of the three-proton correlation function in 13.6 TeV pp collisions at the LHC, demonstrating that three-hadron femtoscopy serves as an effective 33 scattering experiment that reveals a novel long-range attractive component in the isospin 3/2 three-body system and opens new avenues for studying three-body dynamics in the strangeness sector.
This paper presents the physics program and detector design of the Spin Physics Detector (SPD) at the NICA collider, which aims to study the spin structure of protons and deuterons—particularly gluon transverse momentum-dependent distributions and tensor PDFs—using polarized beams and various complementary probes.
Using a dataset of approximately 90 million events collected by the BESIII detector, this study reports the first search for the charged lepton flavour violating decay , setting a new upper limit on its branching fraction of at the 90% confidence level, which improves upon previous results by nearly three orders of magnitude.
Using 640 days of data from the initial KM3NeT/ARCA configurations, this study reports no statistically significant detection of diffuse astrophysical neutrinos from the all-sky or Galactic Ridge regions, instead providing flux measurements and upper limits that establish a methodological foundation for future observations.
This paper evaluates various quantum noise reduction schemes for KAGRA's post-O5 upgrade, finding that a frequency-dependent squeezing scheme with an optimized filter cavity maximizes the detection range for binary neutron stars under quantum-noise-dominated conditions, while an EPR scheme is superior for heavy binary systems.