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.
This paper presents the first measurement of production in minimum-bias and high-multiplicity pp collisions at TeV using a novel reconstruction method that combines converted and calorimeter photons, providing transverse-momentum spectra and ratios that agree with theoretical models and enabling future femtoscopic studies relevant to neutron star physics.
This paper reports the results of a precision torsion balance experiment that found no evidence for non-gravitational long-range interactions between ordinary matter and dark matter, thereby establishing strict upper bounds on such forces and constraining various dark matter theories.
This study demonstrates that the diffusivity of radon progeny Pb and Po in Nylon-6 increases significantly under high relative humidity, reaching values around cm/s at 95% RH, thereby highlighting the critical need to control environmental humidity and radon exposure to prevent internal contamination in ultra-low background physics experiments.
Using LHCb data corresponding to an integrated luminosity of , this paper reports the first observation of the , , and decays and determines their branching fractions relative to the decay, opening new avenues for studying CP violation in beauty mesons.
This paper introduces KANELÉ, a framework that leverages the spline-based structure of Kolmogorov-Arnold Networks to enable efficient, low-latency FPGA deployment via lookup tables, achieving significant speedups and resource savings while matching or surpassing existing LUT-based architectures.
This paper reviews the current status of the muon anomalous magnetic moment as a probe for physics beyond the Standard Model following the final FNAL results and the second Theory Initiative White Paper, while discussing experimental achievements, ongoing efforts to improve theoretical predictions, and future prospects for surpassing current precision limits.
This paper presents a statistical analysis demonstrating that daily modulation in dark matter direct detection experiments, particularly using anisotropic solid-state detectors like trans-stilbene, offers a discovery significance that scales with the square root of exposure time without saturating due to background systematics, and shows that optimizing detector orientations can reduce the required exposure by a factor of approximately five.
This paper presents a memristive tabular variational autoencoder implemented on an analog content-addressable memory (ACAM) device that achieves real-time, 12x compression of high-energy physics calorimeter data with ultra-low latency (24 ns) and high throughput (330M compressions/s).
This paper evaluates the validity of the Standard Model Effective Field Theory (SMEFT) versus the Higgs Effective Field Theory (HEFT) for Higgs pair production by comparing their predictions against "Loryon"-inspired UV-complete models, demonstrating that HEFT can offer a more accurate description than SMEFT in specific parameter regimes and highlighting di-Higgs measurements as a probe for non-linear electroweak dynamics.
This paper presents the first perturbative QCD predictions for the branching fractions and direct CP asymmetries of the quasi-two-body decays involving various -, -, and -wave resonances, finding results consistent with existing data and predicting vanishing CP asymmetries within the Standard Model.