1434 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.
Using CMS data from PbPb collisions at 5.02 TeV, this study measures the azimuthal anisotropy of prompt D mesons and finds their flow coefficients to be consistent with those of D mesons, indicating that the strangeness content does not significantly alter the mesons' interaction with the quark-gluon plasma within the measured transverse momentum range.
Using the CLAS12 detector at Jefferson Lab, researchers reported the first measurement of beam spin asymmetries for dihadrons in semi-inclusive deep inelastic scattering, employing a machine learning-based photon classifier to significantly enhance statistics and revealing a nonzero asymmetry sensitive to the twist-3 quark-gluon correlation PDF as well as the first experimental evidence for the isospin dependence of the helicity-dependent dihadron fragmentation function .
This paper evaluates the potential of future multi-neutrino-telescope observations to constrain neutrino mixing parameters and detect beyond-Standard-Model effects in the TeV–PeV energy regime by analyzing the flavor composition of astrophysical neutrinos, a capability currently limited by statistics and uncertainties in existing IceCube data.
This paper introduces DCTracks, an open Monte Carlo dataset for drift chamber events, along with standardized metrics and benchmark results comparing traditional algorithms and Graph Neural Networks to facilitate reproducible machine learning-based track reconstruction research.
Using 136 fb of 13 TeV proton-proton collision data from the CMS detector, this study simultaneously measures the signal and searches for the process, finding the former consistent with Standard Model predictions while setting an observed upper limit on the charm quark Yukawa coupling modifier at 3.0 times its SM value.
This paper details the completion and engineering challenges of excavating the 69-meter diameter by 94-meter high underground cavern for the Hyper-Kamiokande detector, highlighting the design evolution and construction methods employed to realize this massive rock cavern 600 meters underground.
This paper utilizes Born--Oppenheimer effective field theory factorization to provide genuine, fit-free predictions for the inclusive hadroproduction cross sections of the , its bottomonium partner, and various charmonium and bottomonium pentaquark states.
This paper presents a sub-part-per-trillion precision measurement of the 2S-6P transition in atomic hydrogen that resolves discrepancies in the proton charge radius by confirming the muonic hydrogen value and validates the Standard Model and bound-state QED corrections to unprecedented levels of accuracy.
This paper demonstrates that likelihood-free Simulation-Based Inference, particularly the Neural Posterior Estimation method, offers a computationally efficient and accurate alternative to traditional MCMC for exploring high-dimensional Beyond the Standard Model parameter spaces, successfully inferring posterior distributions for both 5-parameter and 9-parameter pMSSM scenarios including dark matter constraints.
Using a sample of 2.7 billion events collected by the BESIII detector, this study reports the first observation of the decay via the intermediate state, measures its associated branching fraction, observes an isospin-violating decay involving the , and sets upper limits on production in these channels.