Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation

<p>SNO+ is a liquid scintillator experiment whose physics goals include measurements of solar neutrinos, reactor anti-neutrinos, geo neutrinos and double beta decay. During an initial water phase, it will also search for invisible modes of nucleon decay.</p> <p>This thesis investig...

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Bibliographic Details
Main Author: Coulter, IT
Other Authors: Biller, S
Format: Thesis
Language:English
Published: 2013
Subjects:
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author Coulter, IT
author2 Biller, S
author_facet Biller, S
Coulter, IT
author_sort Coulter, IT
collection OXFORD
description <p>SNO+ is a liquid scintillator experiment whose physics goals include measurements of solar neutrinos, reactor anti-neutrinos, geo neutrinos and double beta decay. During an initial water phase, it will also search for invisible modes of nucleon decay.</p> <p>This thesis investigates methods of improving the detector's sensitivity to the baryon and lepton violating processes of neutrinoless double beta decay and invisible nucleon decay. It does this through an improved scintillator model, allowing the sensitivity of the detector with different loading techniques to be evaluated, through a new background rejection technique, capable of increasing the active volume of the detector, and with the development of improved position fitters, achieving resolutions of approximately 10 cm in scintillator and 25 cm in water.</p> <p>The sensitivity of SNO+ to invisible modes of nucleon decay is explored, predicting, after one month of data, a limit of τ &gt; 1.38 x 10<sup>30</sup> years on the decay of neutrons and of τ &gt; 1.57 x 10<sup>30</sup> years on the decay of protons.</p>
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spelling oxford-uuid:495395b3-bf15-4c9b-851d-c13e7dad8a222023-07-03T09:54:32ZModelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violationThesishttp://purl.org/coar/resource_type/c_db06uuid:495395b3-bf15-4c9b-851d-c13e7dad8a22PhysicsParticle physicsEnglishOxford University Research Archive - Valet2013Coulter, ITBiller, S<p>SNO+ is a liquid scintillator experiment whose physics goals include measurements of solar neutrinos, reactor anti-neutrinos, geo neutrinos and double beta decay. During an initial water phase, it will also search for invisible modes of nucleon decay.</p> <p>This thesis investigates methods of improving the detector's sensitivity to the baryon and lepton violating processes of neutrinoless double beta decay and invisible nucleon decay. It does this through an improved scintillator model, allowing the sensitivity of the detector with different loading techniques to be evaluated, through a new background rejection technique, capable of increasing the active volume of the detector, and with the development of improved position fitters, achieving resolutions of approximately 10 cm in scintillator and 25 cm in water.</p> <p>The sensitivity of SNO+ to invisible modes of nucleon decay is explored, predicting, after one month of data, a limit of τ &gt; 1.38 x 10<sup>30</sup> years on the decay of neutrons and of τ &gt; 1.57 x 10<sup>30</sup> years on the decay of protons.</p>
spellingShingle Physics
Particle physics
Coulter, IT
Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title_full Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title_fullStr Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title_full_unstemmed Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title_short Modelling and reconstruction of events in SNO+ related to future searches for lepton and baryon number violation
title_sort modelling and reconstruction of events in sno related to future searches for lepton and baryon number violation
topic Physics
Particle physics
work_keys_str_mv AT coulterit modellingandreconstructionofeventsinsnorelatedtofuturesearchesforleptonandbaryonnumberviolation