Machine Learning at the Belle II Experiment

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Machine Learning at the Belle II Experiment

The Full Event Interpretation and Its Validation on Belle Data

Cybernetics and systems theory Scientific standards, measurement etc Particle and high-energy physics Artificial intelligence

Author: Thomas Keck

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Collection: Springer Theses

Language: English

Published by: Springer

Published on: 29th December 2018

Format: LCP-protected ePub

Size: 14 Mb

ISBN: 9783319982496


Overview

This book explores how machine learning can be used to improve the efficiency of expensive fundamental science experiments.

The first part introduces the Belle and Belle II experiments, providing a detailed description of the Belle to Belle II data conversion tool, currently used by many analysts. 

The second part covers machine learning in high-energy physics, discussing the Belle II machine learning infrastructure and selected algorithms in detail. Furthermore, it examines several machine learning techniques that can be used to control and reduce systematic uncertainties. 

The third part investigates the important exclusive B tagging technique, unique to physics experiments operating at the Υ resonances, and studies in-depth the novel Full Event Interpretation algorithm, which doubles the maximum tag-side efficiency of its predecessor. 

The fourth part presents a complete measurement of the branching fraction of the rare leptonic B decay “B→tau nu”, which is used to validate the algorithms discussed in previous parts.

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