Conveners
W2-1 Machine Learning in HEP and Novel Reconstruction Tools (PPD) | Apprentissage automatique en PHE et nouveaux outils de reconstruction (PPD)
- Max Swiatlowski (TRIUMF)
Hyper-Kamiokande is the next generation water-Cherenkov neutrino experiment, building on the success of its predecessor Super-Kamiokande. To match the increased precision and reduced statistical errors of the new detectors, improvements to event reconstruction and event selection are required to suppress backgrounds and reduce systematic errors. Machine learning has the potential to provide...
In Fall 2019, the NEWS-G experiment used its latest detector, a 140 cm diameter Spherical Proportional Counter (SPC) to search for low mass dark matter at the Laboratoire souterrain de Modane (LSM), in France. When a particle interacts with an atom of gas inside the SPC, the ensuing recoil ionizes the gas and produces primary electrons that drift towards the centre of the sphere due to a...
The Belle II experiment, based at SuperKEKB, is collecting e+e- collision data at the Upsilon(4S) resonance energy. Many Belle II analyses require tagging methods that involve electrons, muons or pions, where the misidentification of these particles introduces important systematic uncertainties. The new pulse shape discrimination (PSD) tool implemented in the 8736 CsI(Tl) crystal...
In this talk, I present a convolutional autoencoder trained to denoise pulses from a p-type point contact high-purity germanium (HPGe) detector. HPGe detectors are frequently used in the search for rare event interactions, such as neutrinoless double-beta decay, due to their intrinsic purity and excellent energy resolutions. However, electronic noise can make the identification of signal...
In this talk I will present preliminary results regarding the application of machine learning techniques for noise removal on signals from spherical proportional counters (SPCs) with the NEWS-G experiment. In SPC detectors, a primary ionization, created by a particle interacting with the gas, drifts towards a central anode. When ions approach the anode, the electric field becomes strong enough...
