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 demonstrates that simulation-based inference (SBI) is a viable and potentially superior alternative to traditional empirical tuning for determining neutrino interaction model parameters, as it successfully reproduces and slightly improves upon the MicroBooNE collaboration's tuned GENIE configuration while also approximating the NuWro simulation.
This paper establishes a comprehensive Spin Density Matrix framework for analyzing polarization transfer in the decay chain , demonstrating that the state perfectly preserves the initial polarization in the dominant -wave limit while providing a unified method to quantify -wave deviations and extend these insights to other hadronic and electroweak processes.
This paper investigates the energy loss of high-energy partons in anisotropic plasmas within the harmonic approximation, deriving a simple formula for the impact of anisotropy and demonstrating that the resulting medium length dependence exhibits universal limiting attractor characteristics consistent with QCD kinetic theory simulations.
This paper generalizes soft and collinear factorization in perturbative QCD to multi-collinear configurations, demonstrating how generalized splitting amplitudes encode the breaking of strict collinear factorization in space-like limits and the failure of naive multiplicative factorization in simultaneous soft-collinear regimes.
This paper honors Henry Primakoff by reviewing his legacy and recent experimental tests of Chiral Perturbation Theory via Primakoff reactions at CERN and Jefferson Laboratory, which confirm two-flavor predictions while highlighting the need for future measurements with kaons and eta mesons to validate three-flavor theories involving strange quarks.
This paper investigates the scattering of non-relativistic finite-size particles using the partial wave method to demonstrate how particle size significantly alters interaction potentials and cross sections, revealing non-perturbative effects in puffy dark matter direct detection that depend on the size-to-range ratio and offering stability-based constraints for nugget-type dark matter.
This paper investigates the feasibility of observing the muon trident process, including the first potential detection of electromagnetic pair production and QED bound states, at the LHC's far-forward FASER and FASER2 detectors through -tungsten collisions.
This paper constrains the process with in the low-mass region by recasting Standard Model measurements, establishing cross-section limits between 0.12 and 0.62 pb while identifying a notable preference for a new physics signal around GeV and GeV that can be accommodated within a top-philic two-Higgs-doublet model.
This paper proposes a string-derived supergravity model combining the Standard Model with gauged and modular symmetry, where anomaly cancellation conditions uniquely determine flavor structures and axion properties, predicting a specific axion mass and coupling while suppressing flavor-violating interactions and reproducing observed neutrino data.
This paper demonstrates that renormalization group running of the PMNS matrix, enhanced by light neutrinophilic new particles in low-scale neutrino mass models, can significantly increase the rate of high-energy "double bang" events at IceCube, making these signatures comparable to standard model predictions and offering a potential window into the origin of neutrino mass.