1495 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 and evaluates a complementary missing-energy search strategy using the LDMX Electromagnetic Calorimeter as an active target during early running, demonstrating sensitivity to light dark matter candidates with effective interaction strengths as low as for masses around 1 MeV.
Using 140 fb⁻¹ of 13 TeV proton-proton collision data collected by the ATLAS detector, this study presents the first measurement of the top-quark Yukawa coupling via the invariant mass spectrum in the lepton+jets channel, finding results consistent with the Standard Model and setting a 95% confidence level upper limit of .
This paper investigates the prospects for measuring $CP$-violation in decays at the LHC by introducing new time-dependent angular observables, demonstrating that future Run 3–5 datasets will enable their extraction with high precision and significantly enhance sensitivity to $CP$-violating short-distance effects and Wilson coefficients.
This paper presents state-of-the-art Standard Model predictions for production at the LHC's 13.6 TeV energy, providing updated cross sections and matched simulations in both five-flavour and four-flavour schemes while exploring their implications for Beyond-the-Standard-Model scenarios and Higgs coupling sensitivities.
The paper proposes using simple, inexpensive hydrogenated carbon structures as highly sensitive, directional detectors capable of identifying sub-GeV dark matter through the quasi-elastic ejection of protons, offering superior performance and background rejection compared to current experiments.
Using 138 fb of proton-proton collision data at = 13 TeV collected by the CMS detector, this study reports the first observation of associated (1S) and Z boson production and measures the effective double-parton scattering cross section, including its dependence on transverse momentum.
This paper reports a fourfold improvement in testing the Equivalence Principle towards the Sun using a rotating torsion balance with beryllium and aluminum test bodies, achieving a 95%-confidence limit of .
This paper demonstrates that the Short-Baseline Near Detector (SBND) can probe previously unexplored light dark matter parameter spaces by detecting MeV-scale photon "blips" from nuclear de-excitation, utilizing state-of-the-art ab initio nuclear theory to predict signals from argon excited states up to 18 MeV.
This paper introduces a robust, jet-free method for measuring energy-energy correlators in LHC proton-proton collisions using event topology and a leading charged hadron reference, which successfully extends measurements to low transverse momentum regimes and reveals distinct QCD dynamics, including the dead-cone effect in heavy flavor events.
This study utilizes PYTHIA8 to analyze charge balance functions of identified hadrons in high-multiplicity jets at TeV, revealing a narrowing balancing width and species-dependent dynamics that suggest multiparton interactions and color reconnection can generate collective-like features within small systems.