Search for new physics with baryons at BESIII
Using events, the BESIII experiment set the world's most stringent limits on invisible baryon decays and oscillations, finding no evidence for baryon-number violation or connections to the dark sector.
⚛️ Category
hep-ex
1417 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.
An Improved Paralyzable Detector Mod
This paper introduces an improved two-parameter analytical model for paralyzable radiation detectors that accounts for finite discriminator response time, offering superior accuracy in describing count rate relations, enabling independent parameter determination, and providing effective post-acquisition pile-up correction that allows for significantly faster data acquisition without compromising accuracy.
Enhancing Neutrinoless Double-Beta Decay Sensitivity of Liquid-Xenon Time Projection Chamber with Augmented Convolutional Neural Network
This paper proposes an augmented convolutional neural network (A-CNN) model that significantly enhances the sensitivity of liquid xenon time projection chambers to neutrinoless double-beta decay by achieving over 60% background rejection while maintaining 90% signal acceptance, thereby improving the projected sensitivity of experiments like XENONnT by approximately 40%.
Searching for Anomalies with Foundation Models
This paper investigates unexpected anomalies in CMS experiment data identified by the OmniLearned foundation model, finding that while background estimates perform well in validation regions, they fail to accurately model the signal region, prompting a call for further scrutiny.
-jet fragmentation with decays in TeV $pp$ collisions at LHCb
Using 5.4 fb of 13 TeV proton-proton collision data collected by the LHCb detector, this study measures the jet fragmentation functions and radial profiles of mesons reconstructed via decays, revealing an increasing contribution from gluon fragmentation as jet transverse momentum rises.
Scintillation light calibrations, systematic uncertainties, and triggering efficiency in the MicroBooNE detector
This paper presents a comprehensive five-year analysis of scintillation light performance in the MicroBooNE detector, detailing its simulation, calibration, and triggering efficiency while reporting novel observations of a significant long-term light yield decline and an unexpectedly high single photoelectron noise rate.
The read-out electronics for the FLASH experiment
This paper introduces the FLASH haloscope experiment, which aims to detect Dark Matter and High-Frequency Gravitational Waves in the 117–360 MHz range, by detailing its cryogenic resonant cavities and advanced read-out system that utilizes Microstrip Superconducting Quantum Interference Amplifiers and Software-Defined Radio techniques to capture signals as weak as W.
Ising noise filter: physics-informed filtering for particle detectors
The paper introduces the Ising noise filter, a portable, physics-informed graph-based algorithm that maps detector hits to binary spins to efficiently suppress background noise and improve track reconstruction in particle detectors, achieving high recall rates in both neutrino telescope and collider experiments.
Magnetic-monopole resummation justifies perturbatively calculated collider production cross sections
This paper employs a Dyson-Schwinger-inspired one-loop resummation scheme within an effective field theory to demonstrate that an ultra-violet fixed point structure justifies the use of perturbative tree-level calculations for magnetic monopole production cross sections at colliders, thereby validating existing experimental mass bounds.
Chiral enhancement in the vector-like fourth family: Case of
This paper demonstrates that a vector-like fourth family of quarks induces a significant chiral enhancement in the process, leading to large deviations from Standard Model predictions that are most stringently constrained by the branching ratio of .