Event Classification in Liquid Scintillator Using PMT Hit Patterns

for Neutrinoless Double Beta Decay Searches

Jack Dunger (Autor)

Buch | Hardcover

XVII, 223 Seiten

2019 | 1st ed. 2019
Springer International Publishing (Verlag)
978-3-030-31615-0 (ISBN)

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The search for neutrinoless double beta decay is one of the highest priority areas in particle physics today; it could provide insights to the nature of neutrino masses (currently not explained by the Standard Model) as well as how the universe survived its early stages. One promising experimental approach involves the use of large volumes of isotope-loaded liquid scintillator, but new techniques for background identification and suppression must be developed in order to reach the required sensitivity levels and clearly distinguish the signal. The results from this thesis constitute a significant advance in this area, laying the groundwork for several highly effective and novel approaches based on a detailed evaluation of state-of-the-art detector characteristics. This well written thesis includes a particularly clear and comprehensive description of the theoretical motivations as well as impressively demonstrating the effective use of diverse statistical techniques. The professionally constructed signal extraction framework contains clever algorithmic solutions to efficient error propagation in multi-dimensional space. In general, the techniques developed in this work will have a notable impact on the field.

Theory.- The SNO+ Experiment.- Reconstruction.- Backgrounds.- Pulse Shape Discrimination for Internal Backgrounds.- Pulse Shape Discrimination of External Backgrounds.- The OXO Signal Extraction Framework.- 0nibetabeta Extraction.- Neutrinoless Double Beta Decay with Slow Scintillator.- Conclusions.- Appendices.

Erscheinungsdatum	30.11.2019
Reihe/Serie	Springer Theses
Zusatzinfo	XVII, 223 p. 166 illus., 102 illus. in color.
Verlagsort	Cham
Sprache	englisch
Maße	155 x 235 mm
Gewicht	535 g
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Hochenergiephysik / Teilchenphysik
Schlagworte	Bayesian Signal Extraction • Liquid Scintillator Detectors • Neutrinoless Double Beta Decay • Ortho-positronium in Liquid Scintillation • Particle ID • Particle Reconstruction in Liquid Scintillator • Slow Scintillators
ISBN-10	3-030-31615-7 / 3030316157
ISBN-13	978-3-030-31615-0 / 9783030316150
Zustand	Neuware