Exploring new Physics with neutrino oscillation experiments

Màster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2022-2023. Tutors: MC González García, Michele Maltoni

Detalles Bibliográficos
Autor: King, Gavin
Tipo de recurso: tesis de maestría
Fecha de publicación:2023
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/193914
Acceso en línea:https://hdl.handle.net/2445/193914
Access Level:acceso abierto
Palabra clave:Neutrins
Oscil·lacions
Model estàndard (Física nuclear)
Treballs de fi de màster
Neutrinos
Oscillations
Standard model (Nuclear physics)
Master's theses
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spelling Exploring new Physics with neutrino oscillation experimentsKing, GavinNeutrinsOscil·lacionsModel estàndard (Física nuclear)Treballs de fi de màsterNeutrinosOscillationsStandard model (Nuclear physics)Master's thesesMàster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2022-2023. Tutors: MC González García, Michele MaltoniNeutrino oscillation experiments set out to measure the differences in mass between the three neutrino flavors of the Standard Model of particle physics, and probe the elements of the lepton mixing (PMNS) matrix encoding the relationship between neutrino mass and interaction eigenstates. In this work, we use the results of these experiments for a different purpose: to place constraints on parameters which, if found to be nonzero, would indicate the existence of new physics (NP) beyond the Standard Model. Neutrino flavor oscillations arise from differences in mass between the three neutrino mass eigenstates, which enter the Hamiltonian in a term inversely proportional to the energy of the propagating neutrino. In the high-energy limit, all three flavors are effectively massless, the mass splittings vanish, and the oscillation wavelength grows too large for oscillations to be detectable. The NP effects we consider here result from introducing new terms into the Hamiltonian with a different energy dependence, either: • independent of energy, for the case of “vector-like” interactions, or • directly proportional to energy, for the case of “tensor-like” interactions. Thus, the new physics would manifest as a deviation from the expected suppression of neutrino flavor oscillations at high energy. If such new physics exists, and is detectable in current experiments, we would expect to observe a contribution to the oscillation wavelength which remains constant or grows with energy. The effects which may be represented within this generic framework include nonstandard interactions between neutrinos and matter, couplings with spacetime torsion fields, violations of Lorentz invariance or of the equivalence principle, and violations of CPT symmetry. The 2004 work of Gonzalez Garcia & Maltoni inferred limits on parameters encoding NP effects on two-flavor neutrino oscillations, using atmospheric neutrino data from Super-Kamiokande, along with data from the long baseline KEK to Kamioka (K2K) experiment. Here, we continue to use data from atmospheric and accelerator neutrino experiments to compute upper bounds on NP parameters. We begin by reproducing the results of [1] using updated data on atmospheric neutrino oscillations, incorporating the latest data from Super-Kamiokande, together with new data from DeepCore. We then consider the NP parameters of a model with three neutrino flavors, and calculate constraints using data from particle accelerators: Tokai to Kamioka (T2K), MINOS, and NOvA.González García, Ma. ConcepciónMaltoni, Michele2023info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2445/193914Màster Oficial - Astrofísica, Física de Partícules i Cosmologiareponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaIngléscc-by-nc-nd (c) King, 2023http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1939142026-05-27T06:46:51Z
dc.title.none.fl_str_mv Exploring new Physics with neutrino oscillation experiments
title Exploring new Physics with neutrino oscillation experiments
spellingShingle Exploring new Physics with neutrino oscillation experiments
King, Gavin
Neutrins
Oscil·lacions
Model estàndard (Física nuclear)
Treballs de fi de màster
Neutrinos
Oscillations
Standard model (Nuclear physics)
Master's theses
title_short Exploring new Physics with neutrino oscillation experiments
title_full Exploring new Physics with neutrino oscillation experiments
title_fullStr Exploring new Physics with neutrino oscillation experiments
title_full_unstemmed Exploring new Physics with neutrino oscillation experiments
title_sort Exploring new Physics with neutrino oscillation experiments
dc.creator.none.fl_str_mv King, Gavin
author King, Gavin
author_facet King, Gavin
author_role author
dc.contributor.none.fl_str_mv González García, Ma. Concepción
Maltoni, Michele
dc.subject.none.fl_str_mv Neutrins
Oscil·lacions
Model estàndard (Física nuclear)
Treballs de fi de màster
Neutrinos
Oscillations
Standard model (Nuclear physics)
Master's theses
topic Neutrins
Oscil·lacions
Model estàndard (Física nuclear)
Treballs de fi de màster
Neutrinos
Oscillations
Standard model (Nuclear physics)
Master's theses
description Màster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2022-2023. Tutors: MC González García, Michele Maltoni
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/193914
url https://hdl.handle.net/2445/193914
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv cc-by-nc-nd (c) King, 2023
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) King, 2023
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Màster Oficial - Astrofísica, Física de Partícules i Cosmologia
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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