1467 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 for the first time that neural simulation-based inference (NSBI) can effectively constrain proton parton distribution functions using high-dimensional, unbinned LHC data, achieving significantly improved precision over traditional binned analyses by fully exploiting statistical power and reducing reliance on coarse uncertainty approximations.
This paper presents a statistical framework that models quasiparticle dynamics following particle impacts to distinguish recombination and trapping processes, enabling the use of superconducting transmon qubits as energy-resolving detectors for reconstructing particle impact locations and energies.
This paper proposes and evaluates the experimental feasibility of the first dedicated measurement of transverse antiproton polarization in proton-nucleus collisions at CERN, utilizing left-right asymmetry in elastic scattering to probe the spin structure of the antinucleon-nucleon interaction.
This paper presents a proof-of-principle lattice QCD calculation of the charged kaon's electric polarizability using a four-point function approach on Wilson quenched lattices, yielding a value of and demonstrating the framework's applicability to strange mesons for future precision studies.
This paper presents a new technique using two multivariate models to identify highly boosted dielectrons that merge into a single electromagnetic calorimeter cluster in 13 TeV proton-proton collisions, achieving 80% and 60% efficiencies for cases with two and one reconstructed tracks, respectively, alongside a dedicated energy correction method.
Using 138 fb⁻¹ of 13 TeV and 35 fb⁻¹ of 13.6 TeV proton-proton collision data, this study presents the first search for beyond-the-Standard-Model resonances in four-top-quark production via the two-lepton channel, finding no significant excess and setting exclusion limits on various mediator models, including Z' bosons up to 850 GeV.
This paper investigates three types of new physics resonances that couple to Standard Model quarks through direct top-quark flavor-changing interactions, identifying the relevant SMEFT operators at the electroweak scale and analyzing their phenomenological implications.
This paper presents a global Bayesian analysis of unpolarized quark transverse-momentum-dependent parton distribution functions using Drell-Yan data at and accuracy, leveraging AI-driven functional form selection and machine-learning emulators to enable efficient Markov Chain Monte Carlo sampling and quantify uncertainties.
The ATLAS experiment measured the differential cross sections of coherent exclusive production in ultraperipheral Pb+Pb collisions at TeV using 2023 data, finding results consistent with theoretical predictions but in tension with previous Run-2 measurements in the central rapidity region.
This paper investigates the phenomenology of pseudo-Nambu-Goldstone bosons and light gauge bosons arising from the subgroup of a flavor model, demonstrating that their unsuppressed flavor-violating couplings allow low-energy flavor experiments to probe symmetry breaking scales up to GeV, surpassing current astrophysical limits.