Neutrino Physics and Machine Learning 2023

Session

Session 5

24 Aug 2023, 09:00

Tufts University

11. nEXO's Machine Learning: Signal Analysis for Neutrinoless Double Beta Decay (remote)

Jason Brodsky (LLNL)

24/08/2023, 09:00

Collaboration Talk

The nEXO Experiment is a search for neutrinoless double beta decay in 136Xe using a 5-ton liquid xenon time projection chamber. This talk introduces the science and design of nEXO and presents an overview of role machine learning plays in its analysis.
nEXO’s machine learning development currently focuses on the analysis of direct-from-sensor signals. nEXO employs an array of electrodes to...

29. Variational Studies of nEXO's Topological Discriminator

Mr Scott Schwartz (LLNL)

24/08/2023, 09:45

Individual Talk

The nEXO Experiment is a search for neutrinoless double beta decay in 136Xe using a 5-ton liquid xenon time projection chamber. Machine learning is employed in nEXO’s analysis as a deep neutral network discriminator to identify gamma ray backgrounds, which are distinguished from double beta decays due to their high prevalence of multiple interaction sites. This talk provides a deeper overview...

22. Search for solar neutrino and light dark matter with the PandaX-4T experiment

Wenbo Ma

24/08/2023, 10:35

Collaboration Talk

The PandaX-4T experiment aims to search for potential dark matter interactions. With significant technical improvements, PandaX-4T achieves unprecedented sensitivity at the low-energy edge of LXe detectors, opening a new window for observing solar neutrinos. Using commissioning data, two hybrid analyses are carried out to search for dark matter interactions, yielding world-leading results for...

26. Extracting the $\cos2\phi$ Asymmetry in the Drell-Yan process using Deep Neural Networks

Dinupa Nawarathne (New Mexico State University)

24/08/2023, 11:20

Individual Talk

Muon-pair production in $pp$ collisions through the Drell-Yan process provides an important tool for studying the internal quark-gluon structure of the nucleon. Precisely measuring the $\cos2\phi$ asymmetry, where $\phi$ represents the azimuthal angle of the $\mu^{+}\mu^{-}$ pair in the Collins-Soper frame, provides valuable insights into the proton's structure. Conventional methods for...