1387 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 utilizes Born-Oppenheimer effective field theory (BOEFT) to systematically quantify open-flavor threshold effects on the quarkonium spectrum by solving coupled Schrödinger equations with lattice-constrained static potentials, successfully reproducing experimental data and providing a field-theoretical interpretation of the phenomenological model's pair-creation constant.
The NA62 experiment at CERN presents a new measurement of the branching ratio using combined 2016–2024 data, yielding a result of that is compatible with the Standard Model prediction with better than 20% precision.
Using 5.1 fb⁻¹ of proton-proton collision data at 13 TeV, the LHCb experiment performed a precision measurement of the forward -boson production cross-sections via the decay channel, yielding results that significantly improve upon previous measurements and align well with next-to-next-to-leading order theoretical predictions.
This paper reviews the current status and future perspectives of glueballs, highlighting their role as massive composite particles formed by gluons through color charge interactions, which provides a unique window into understanding mass generation in the strong interaction.
Using collision data collected by the BESIII detector, this study presents an improved measurement of the branching fraction for the leptonic decay , which is subsequently used to determine the decay constant and the CKM matrix element with enhanced precision.
This paper systematically analyzes ultralight dark matter effects on neutrino oscillations using T2K and NOA data, revealing that stochastic fluctuations in the low-mass regime significantly relax coupling constraints while failing to resolve the existing tension in the CP-violating phase between the two experiments.
This paper reports a 100-fold improvement in sensitivity for detecting new gravity-like forces at micrometer scales using optically levitated microspheres, establishing the first multi-component vector force measurements and setting stringent new upper limits on Yukawa-type interactions in the 5–10 μm range.
The TESSERACT Collaboration reports the first limits on light dark matter interactions using a low-threshold, two-channel athermal phonon detector operated above ground, achieving the best energy resolution for such devices and setting the most stringent constraints to date for dark matter masses between 44 and 87 MeV/.
This paper demonstrates that Transformer networks applied to ultra-high-energy cosmic ray simulations successfully learn physically meaningful features, specifically through their trained positional encodings for azimuthally symmetric air showers and their attention mechanisms for cosmic particles from galaxy catalogs.
This paper introduces a computationally efficient Bayesian framework for Parton Distribution Function (PDF) determination that utilizes low-dimensional linear models derived from neural network bases to provide robust uncertainty estimates and transparent control over model selection, as validated through synthetic data and closure tests.