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Rozprawy doktorskie na temat „Neutrino mass and mixing”

Autor: Grafiati

Data publikacji: 2 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Cooper, Iain K. "On discrete flavour symmetries, neutrino mass and mixing." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/345719/.

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Neutrino mixing is a thriving area of particle physics research, with the recent discovery of non-zero θ13 inspiring a large amount of research into the field. This thesis presents two models which aim to explain the observed neutrino mixing patterns in the context of Grand Unified Theories, which also output quark masses and mixings. A model predicting Tri-Bimaximal mixing is presented which combines a previously published SU(5) model with an A4 family symmetry. Extra adjoint fermionic matter is present as prescribed by the original Unified model, and this provides 2 seesaw particles; however

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2

Mannaa, Sammy, and Antek Szadaj. "Distribution of Neutrino Mixing Parameters FromReal and Complex Random Neutrino Mass Matrices." Thesis, KTH, Teoretisk fysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-127458.

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The theory of neutrino oscillations is covered. Also, the theory of Dirac, Majorana, and Dirac-Majorana neutrinos is presented. From this theory, and the model presented in [7], a program is constructed which creates a suitable number of neutrino mass matrices M using pseudo-random numbers generated in MATLAB. These matrices are diagonalised, and from the general notion of the Pontecorvo-Maki-Nakagawa-Sakata matrix UPMNS, statistical distributions of six mixing parameters are presented, namely; 12; 13; 23, the CP-violating Dirac phase delta ( ), and two Majorana CP-violating phases alpha one a

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3

Schirato, Richard C. "Neutrino mass and mixing schemes : effects on supernova signal and an experiment for direct verification /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3071051.

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4

Hällgren, Tomas. "Aspects of Dimensional Deconstruction and Neutrino Physics." Doctoral thesis, KTH, Teoretisk partikelfysik, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4480.

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The existence of at or curved extra spatial dimensions provides new insights into several of the problems which face the Standard Model of particle physics, including the gauge hierarchy problem, the smallness of neutrino masses, and the dark matter problem. However, higher-dimensional gauge theories are not renormalizable and can only be considered as low-energy effective theories, with limited applicability. Dimensional deconstruction provides a class of manifestly gauge invariant possible ultraviolet completions of higher-dimensional gauge theories, formulated within conventional quantum el

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5

Medina, Alberto Martin Gago. "Soluções de grande comprimento de oscilação para o problema de neutrinos solares." Universidade de São Paulo, 2001. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-04122013-105222/.

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Esta tese apresenta uma análise estatística detalhada dos dados de experimentos com neutrinos solares mais recentes, com duas diferentes soluções para oscilações de neutrinos, ambas caracterizadas por um grande comprimento de oscilação. A primeira baseada no mecanismo de oscilação padrão, ou seja, induzida por massa, sendo esta estudada nos casos de duas e três gerações e dentro do regime de quase-vácuo. E a segunda, uma exótica, que usa como mecanismo de oscilação uma possível violação do princípio de equivalência, que foi analisada somente para o caso de duas gerações, sendo este discutido p

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6

Blennow, Mattias. "Theoretical and Phenomenological Studies of Neutrino Physics." Doctoral thesis, Stockholm : Department of Theoretical Physics, Royal Institute of Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4415.

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7

Bergström, Johannes. "Predictions of Effective Models in Neutrino Physics." Licentiate thesis, KTH, Teoretisk partikelfysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35267.

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Experiments on neutrino oscillations have confirmed that neutrinos have small, but non-zero masses, and that the interacting neutrino states do not have definite masses, but are mixtures of such states.The seesaw models make up a group of popular models describing the small neutrino masses and the corresponding mixing.In these models, new, heavy fields are introduced and the neutrino masses are suppressed by the ratio between the electroweak scale and the large masses of the new fields. Usually, the new fields introduced have masses far above the electroweak scale, outside the reach of any for

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8

Bergström, Johannes. "Models in Neutrino Physics : Numerical and Statistical Studies." Doctoral thesis, KTH, Teoretisk partikelfysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-127409.

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The standard model of particle physics can excellently describe the vast majorityof data of particle physics experiments. However, in its simplest form, it cannot account for the fact that the neutrinos are massive particles and lepton flavorsmixed, as required by the observation of neutrino oscillations. Hence, the standardmodel must be extended in order to account for these observations, opening up thepossibility to explore new and interesting physical phenomena. There are numerous models proposed to accommodate massive neutrinos. Thesimplest of these are able to describe the observations us

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9

Ohlsson, Tommy. "Dynamics of quarks and leptons : theoretical Studies of Baryons and Neutrinos." Doctoral thesis, KTH, Fysik, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2991.

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The Standard Model of Elementary Particle Physics (SM) is the present theoryfor the elementary particles and their interactions and is a well-established theorywithin the physics community. The SM is a combination of Quantum Chromodynamics(QCD) and the Glashow{Weinberg{Salam (GWS) electroweak model. QCDis a theory for the strong force, whereas the GWS electroweak model is a theoryfor the weak and electromagnetic forces. This means that the SM describes allfundamental forces in Nature, except for the gravitational force. However, the SMis not a nal theory and some of its problems will be discus

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10

Flohr, Jamin. "Massless neutrino mixing /." [St. Lucia, Qld.], 2006. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe19503.pdf.

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11

Gaydutschenko, Larissa 1987. "Matrizes de massa e violação CP." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278509.

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Orientador: Orlando Luis Goulart Peres<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-23T16:45:26Z (GMT). No. of bitstreams: 1 Gaydutschenko_Larissa_M.pdf: 776013 bytes, checksum: dded3e977e716b07101df7cb392a6b94 (MD5) Previous issue date: 2013<br>Resumo: O fenômeno de oscilação de neutrinos, já experimentalmente observado, só pode ser explicado se a massa dos neutrinos for diferente de zero. No entanto, até pouco tempo atrás, acreditava-se que neutrinos não tivessem massa. O Modelo Padrão das partículas

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12

Melbéus, Henrik. "Particle Phenomenology of Compact Extra Dimensions." Doctoral thesis, KTH, Teoretisk partikelfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93749.

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This thesis is an investigation of the subject of extra dimensions in particle physics. In recent years, there has been a large interest in this subject. In particular, a number of models have been suggested that provide solutions to some of the problem with the current Standard Model of particle physics. These models typically give rise to experimental signatures around the TeV energy scale, which means that they could be tested in the next generation of high-energy experiments, such as the LHC. Among the most important of these models are the universal extra dimensions model, the large extra

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13

Flieger, Wojciech. "Constraints on neutrino mixing from matrix theory." Doctoral thesis, Katowice : Uniwersytet Śląski, 2021. http://hdl.handle.net/20.500.12128/21721.

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Jeden z kluczowych problemów współczesnej fizyki cząstek elementarnych dotyczy liczby zapachów neutrin występujących w naturze. Do tej pory udało się ustalić, ze istnieją trzy rodzaje neutrin aktywnych. Istotnym problemem jest ustalenie, czy istnieją inne dodatkowe stany neutrinowe. Neutrina takie nazywamy sterylnymi ze względu na fakt, ze ich oddziaływanie słabe ze znaną materią jest jak do tej pory poniżej eksperymentalnego progu detekcji. Niemniej jednak neutrina sterylne mogą się mieszać z neutrinami aktywnymi pozostawiając tym samym ślady swojego istnienia na poziomie Modelu Standa

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14

Gargiulo, Maria Vittoria. "On neutrino mixing in Quantum Field Theory." Doctoral thesis, Universita degli studi di Salerno, 2017. http://hdl.handle.net/10556/2606.

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2015 - 2016<br>Neutrino physics is one of the most important areas in research on the fundamental interactions, both theoretically and experimentally. A central issue in the study of these particles is related to the properties of mixing and ﬂavor oscillations. In particular, a necessary condition for the mixing is that neutrinos have mass, a feature which is not considered by the Standard Model, and which poses the problem of the origin and nature of these masses. The theoretical basis of neutrino mixing has been studied in many details and in the late ’90 a quantum ﬁeld theory (QFT) formalis

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15

Terliuk, Andrii. "Measurement of atmospheric neutrino oscillations and search for sterile neutrino mixing with IceCube DeepCore." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19304.

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Neutrinooszillation, ein Phänomen, das den Neutrino-Flavour nach ihrer Ausbreitung durch den Weltraum verändern kann, ist ein Beweis für nicht-verschwindende Neutrinomassen und ein Hinweis auf eine neue Physik außerhalb des Standardmodells. Diese Arbeit präsentiert die erste Messung zu atmosphärischen Neutrinooszillationen, die sechs Jahre zwischen Mai 2011 und Mai 2017 des IceCube DeepCore Experiment umfasst. Sie erweitert die bisher verfügbare Ereignisauswahl um eine neue Ereignissignatur und einen großeren Energiebereich. Diese Arbeit beschreibt die Methoden, die für die Simulationen der W

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16

Barry, James Munnik Hamilton. "Comparison of A₄ neutrino mass models." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1015271.

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The present neutrino oscillation data are compatible with tri-bimaximal mixing, to leading order. The addition of an A₄ family symmetry and extended Higgs sector to the Standard Model can generate this mixing pattern, assuming the correct vacuum expectation value alignment of Higgs scalars. The effect of deviating this alignment is studied, for different types of A₄ models, with a phenomenological emphasis: the effect of perturbations on the model predictions for the neutrino oscillation and neutrino mass observables. The standard theoretical description of neutrino oscillations is presented,

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17

Erwin, Rebecca Joan Filippone Bradley Ramsey-Musolf Michael. "Neutrino mass constraints on electroweak parameters /." Diss., Pasadena, Calif. : Caltech, 2007. http://resolver.caltech.edu/CaltechETD:etd-05252007-084814.

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18

Frigerio, Michele. "Neutrino Mass Matrix: Reconstruction and Implications." Doctoral thesis, SISSA, 2003. http://hdl.handle.net/20.500.11767/4199.

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19

Blennow, Mattias. "Matter and damping effects in neutrino mixing and oscillations." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301.

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20

Rodejohann, Werner. "Phenomenological aspects of Majorana neutrino mass matrices." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963801589.

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21

Wren, Steven. "Neutrino mass ordering studies with IceCube-DeepCore." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/neutrino-mass-ordering-studies-with-icecubedeepcore(70414fde-3bef-4028-877b-5e1e86b2165d).html.

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The IceCube Neutrino Observatory at the South Pole is the world's largest neutrino detector with over 1km^3 of instrumented Antarctic ice. While it has been primarily designed to observe astrophysical neutrinos, this size also allows it to collect vast quantities of atmospheric neutrinos. These high-statistics datasets allow for measurements of the properties of neutrinos, in particular the phenomena of neutrino oscillation. One of the outstanding questions in this field is that of the neutrino mass ordering (NMO). The Precision IceCube Next Generation Upgrade (PINGU) is a proposed low-energy

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22

Serna, Mario (Mario Andres) 1974. "Day-night and energy variations for maximal neutrino mixing angles." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85340.

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23

Williams, Simon Shaughan. "A cylindrical mirror analyser for neutrino mass measurement." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253133.

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24

Thornby, John Albert. "AMBER : a novel approach to neutrino mass measurement." Thesis, University of Warwick, 2008. http://wrap.warwick.ac.uk/56292/.

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The existence of neutrino oscillations demands that neutrinos have non-zero rest mass, the evidence for and implications of which are discussed. Nuclear B-decay is offered as a model-independent tool for direct neutrino mass measurement and contemporary experimental measurements are reviewed. The AMBER experiment is introduced as a novel charge spectrometer, aimed at precision electron energy measurements to probe the structure of the B-spectrum close to its endpoint. AMBER employs a vacuum insulated inverse Kelvin probe to continuously monitor a single rate-of-change observable. A detailed te

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25

Quinn, Liam. "Determining the neutrino mass hierarchy with KM3NeT/ORCA." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0386.

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ORCA (Recherche d'Oscillations avec les Rayons Cosmiques dans l'Abysse) est un détecteur TCherenkov de neutrinos à l'échelle des mégatonnes, actuellement en construction par la collaboration KM3NeT, à 2450m de profondeur dans la mer Méditerranée.Les neutrinos atmosphériques traversent la Terre le long d'un large éventail de lignes des bases, en subissant des effets de matière qui augmentent les oscillations des neutrinos avec énergies de l'ordre de peu GeV, qui dépendent de l'hiérarchie de masse des neutrinos (NMH).La conception d' ORCA comprise une dense configuration de modules optiques, qui

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26

BORGHESI, MATTEO. "Toward the first neutrino mass measurement of Holmes." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/379056.

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Gli unici metodi per misurare la massa del neutrino che non siano dipendente dal modello teorico sono quelli basati sullo studio cinematico del decadimento beta o per cattura elettronica, poiché assumono solo la conservazioni di energia e momento. Holmes è un progetto ERC che è iniziato nel 2014 e che è portato avanti nei laboratori di criogenia dell’università di Milano-Bicocca. Il suo obiettivo è quello di effettuare una misura diretta della massa del neutrino con una sensibilità statistica dell’ordine dell’elettronvolt. Inoltre, proverà anche la fattibilità di questa tecnica per una futuro

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27

Di, Mauro Marco. "Flavor mixing in quantum field theory and quantum information." Doctoral thesis, Universita degli studi di Salerno, 2011. http://hdl.handle.net/10556/194.

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2009 - 2010<br>After reviewing the formalism for describing flavor mixing, both in Quantum Mechanics and Quantum Field Theory, some consequences along three different directions are studied. First, it is proposed that flavor mixing can be a viable candidate for spontaneous supersymmetry breaking, due to the nontrivial vacuum structure induced by it. After the statement of the conjecture, an explicit proof in a simple case is given. Second, the properties of flavor states as entangled states both in QM and QFT are studied. By interpreting such states as multipartite mode–entangled states,

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28

Ohata, Takahiro. "The relationships between neutrino Majorana mass and other physics." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263454.

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29

Wang, Peng Wise Mark B. Wise Mark B. Ramsey-Musolf Michael. "Neutrino mass implications for physics beyond the Standard Model /." Diss., Pasadena, Calif. : California Institute of Technology, 2007. http://resolver.caltech.edu/CaltechETD:etd-05312007-144931.

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30

Petracca, Fernanda <1983&gt. "Constraints on neutrino mass fraction using Redshift Space Distortions." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6728/1/Fernanda_Petracca_tesi.pdf.

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Redshift Space Distortions (RSD) are an apparent anisotropy in the distribution of galaxies due to their peculiar motion. These features are imprinted in the correlation function of galaxies, which describes how these structures distribute around each other. RSD can be represented by a distortions parameter $\beta$, which is strictly related to the growth of cosmic structures. For this reason, measurements of RSD can be exploited to give constraints on the cosmological parameters, such us for example the neutrino mass. Neutrinos are neutral subatomic particles that come with three flavours,

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31

Petracca, Fernanda <1983&gt. "Constraints on neutrino mass fraction using Redshift Space Distortions." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6728/.

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Redshift Space Distortions (RSD) are an apparent anisotropy in the distribution of galaxies due to their peculiar motion. These features are imprinted in the correlation function of galaxies, which describes how these structures distribute around each other. RSD can be represented by a distortions parameter $\beta$, which is strictly related to the growth of cosmic structures. For this reason, measurements of RSD can be exploited to give constraints on the cosmological parameters, such us for example the neutrino mass. Neutrinos are neutral subatomic particles that come with three flavours,

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32

Jiang, Miao. "Study of the neutrino mass hierarchy with the atmospheric neutrino data collected in Super-Kamiokande IV." Kyoto University, 2019. http://hdl.handle.net/2433/242899.

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33

Girardi, Ivan. "Discrete Symmetry Approach to Lepton Flavour, Neutrino Mixing and Leptonic CP Violation, and Neutrino Related Physics Beyond the Standard Theory." Doctoral thesis, SISSA, 2016. http://hdl.handle.net/20.500.11767/4923.

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The experimental evidences of neutrino oscillation, caused by non-zero neutrino masses and neutrino mixing, which were obtained in the experiments with solar, atmospheric, accelerator and reactor neutrinos, opened new field of research in elementary particle physics. The principal goal is to understand at fundamental level the mechanism giving rise to non-zero neutrino masses and neutrino mixing. The open fundamental questions include those of the nature — Dirac or Majorana — of massive neutrinos, of the type of spectrum neutrino masses obey, of the status of CP symmetry in the lepton sector,

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34

Allanach, Benjamin Christopher. "Supersymmetric extensions of the standard model and the fermion mass problem." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294624.

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35

Davour, Anna. "Search for low mass WIMPs with the AMANDA neutrino telescope." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7913.

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36

McCutcheon, Michael Warren. "Analysis of a 2-3 exchange symmetric neutrino mass matrix." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79048.

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We present an analysis of the requirements of a 2--3 exchange symmetry in the neutrino mass matrix in comparison to the experimentally allowed ranges of neutrino oscillation parameters. The symmetric matrix, being defined at an energy scale appropriate to a right-handed neutrino in a See-saw scheme of mass suppression, is subject to evolution under Supersymmetric Renormalisation Group Equations, in order to interpret the matrix at experimental energies. By way of motivation we discuss the status of neutrino mass in the Standard Model and justify the context of the analysis by examining

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37

Furse, Daniel Lawrence. "Techniques for direct neutrino mass measurement utilizing tritium [beta]-decay." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99313.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2015.<br>In title on title-page, "[beta]" appears as the lower-case Greek letter. Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 265-270).<br>This thesis documents efforts performed in the service to two direct neutrino mass experiments, namely KATRIN at the Karlsruhe Institute of Technology in Karlsruhe, Germany and Project8 at the University of Washington in Seattle. These experiments aim to utilize a measurement of the shape of the endpoint of the tritium beta decay spectrum to

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38

Salgado, Maurílio Ferreira. "Fenomenologia de medidas diretas de massa de neutrino." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/278492.

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Orientador: Orlando Luís Goulart Peres<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-15T20:53:54Z (GMT). No. of bitstreams: 1 Salgado_MaurilioFerreira_M.pdf: 1919300 bytes, checksum: 5f4341c064eb9c9bbcc9a3ae84fa84d8 (MD5) Previous issue date: 2010<br>Resumo: A massa é um dos objetos de estudo mais importantes em física de neutrinos, talvez o mais importante. Nesta dissertação discutimos como se dá a geração de massa no Modelo Padrão, que é capaz de explicar de maneira compacta grande parte da diversidad

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39

Pestes, Rebekah Faith. "Precision Neutrino Oscillations: Important Considerations for Experiments." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103527.

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Currently, we are in an era of neutrino physics in which neutrino oscillation experiments are focusing on doing precision measurements. In this dissertation, we investigate what is important to consider when doing these precise experiments, especially in light of significant unresolved anomalies. We look at four general categories of considerations: systematic uncertainties, fundamental assumptions, parameterization-dependence of interpretations, and Beyond the Standard Model (BSM) scenarios. By performing a simulation using GLoBES, we find that uncertainties in the fine structure of the react

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40

Cardall, Christian Y. "Towards limits on neutrino mixing parameters from nucleosynthesis in the big bang and supernovae /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC IP addresses, 1997. http://wwwlib.umi.com/cr/ucsd/fullcit?p9732712.

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41

Alizadeh, Ramin. "A new upper limit on the electron anti-neutrino rest-mass." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236237.

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42

Sawy, Fatma H. A. "A new way to determine the neutrino mass hierarchy at reactors." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3425774.

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The neutrino mass ordering is one of the fundamental characteristics of the reference 3-neutrino mixing scheme that still remains undetermined experimentally at present. Some of basic neutrino physics observables, which are planned to be measured in currently running and/or upcoming neutrino experiments, depend critically on the neutrino mass ordering. The Neutrino Mass Hierarchy Determination ( MHD) is one of the main goals of the major current and future neutrino experiments. MHD corresponds to the sign of the so called atmospheric neutrino mass, |Delta(m^2_atm)|. The medium baselines react

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43

FERRI, ELENA. "An experiment for the direct calorimetric measurement of the neutrino mass." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2012. http://hdl.handle.net/10281/29502.

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The oscillation experiments have clearly shown that neutrino are massive particle. Nowadays the experiments based on kinematic analysis of electrons emitted in nuclear beta-decay are the most sensitive for a direct electron-neutrino mass determination. The method consists in searching for a tiny deformation caused by a non-zero neutrino mass to the spectrum of the charged particles emitted near the end point. A possible approach is the calorimetric one. In a calorimetric measurement the source is embedded in the detector and all the energy is measured, except for the one taken away by the n

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44

Vlaev, Dimiter S. "Mixing, mass transfer and bioreaction in an industrial fermenter." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.680178.

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45

Terliuk, Andrii [Verfasser], Marek [Gutachter] Kowalski, Walter [Gutachter] Winter, and Stefan [Gutachter] Söldner-Rembold. "Measurement of atmospheric neutrino oscillations and search for sterile neutrino mixing with IceCube DeepCore / Andrii Terliuk ; Gutachter: Marek Kowalski, Walter Winter, Stefan Söldner-Rembold." Berlin : Humboldt-Universität zu Berlin, 2018. http://d-nb.info/1185666745/34.

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46

Bouchand, Romain. "Radiative Neutrino Mass Generation and Renormalization Group Running in the Ma-Model." Thesis, KTH, Teoretisk partikelfysik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-93672.

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47

Borde, Arnaud. "One-Dimensional Power Spectrum and Neutrino Mass in the Spectra of BOSS." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01023004.

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The framework of the studies presented in this thesis is the one-dimensional power spectrum of the transmitted flux in the Lyman-alpha forests. The Lyman-alpha forest is an an absorption pattern seen in the spectra of high redshift quasars corresponding to the absorption of the quasar light by the hydrogen clouds along the line of sight. It is a powerful cosmological tool as it probes relatively small scales, of the order of a few Mpc. It is also sensible to small non-linear effects such as the one induced by massive neutrinos.First, we have developed two independent methods to measure the one

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48

FILACI, MANUELE. "Neutrino Mass Models: From Type III See-saw to Non-Commutative Geometry." Doctoral thesis, Università degli studi di Genova, 2021. http://hdl.handle.net/11567/1045600.

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Today we know that neutrinos are massive, but we ignore both the origin of their masses and the reason why those masses are so tiny. A natural mechanism that can explain the smallness of neutrino masses is the See-saw Mechanism, that in this work is studied in its Type III variant. However, even in the scope of the See-saw Mechanism, the origin of the huge neutrino Majorana mass (which is a fundamental prerequisite for any see-saw model) remains to be explained. A possible explanation can be found in Twisted Non-Commutative Geometry (NCG): for particular twists of the so-called Connes Model (w

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49

Weiss, Talia E. "Modeling beta decay spectra to analyze the sensitivity of a neutrino mass experiment." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120207.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Physics, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 46-47).<br>The Project 8 experiment aims to measure the electron neutrino mass by obtaining and analyzing [beta] spectra from tritium decay. Using an inferential model of the experiment's anticipated data, I evaluate its projected sensitivity to certain parameters of interest. I focus on the precision and accuracy with which Project 8 can expect to resolve the [beta]-decay spectrum's endpoint in an upcoming stage of the experim

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Huang, Qinhua. "On the way to the determination of the Neutrino Mass Hierarchy with JUNO." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLX082/document.

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L'expérience JUNO est une expérience basée sur un détecteur à scintillateur liquide ayant pour objectif principal de déterminer la hiérarchie de masse des neutrinos. JUNO atteindra une sensibilité de trois écarts standards en 6 ans, avec une résolution en énergie sans précédent, meilleure que 3% à 1MeV. Le détecteur central de JUNO est un détecteur à scintillateur liquide de 20 kilotonnes, construit avec une couverture de photocathode élevée (78%) et une bonne transparence. La couverture de photocathode est assurée par 18000 photomultiplicateurs de 20 pouces et 25000 de 3 pouces, ce qui permet

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