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Neutrino oscillations in deconstructed dimensions
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Matematisk fysik.
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.ORCID-id: 0000-0002-3525-8349
Department of Physics, Oklahoma State University.
2005 (engelsk)Inngår i: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2005, nr 02, s. 049-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We present a model for neutrino oscillations in the presence of a deconstructed non-gravitational large extra dimension compactified on the boundary of a two-dimensional disk. In the deconstructed phase, sub-mm lattice spacings are generated from the hierarchy of energy scales between similar to 1 TeV and the usual B - L breaking scale similar to 10(15) GeV. Here, short-distance cutoffs down to similar to 1eV are motivated by the strong coupling behavior of gravity in local discrete extra dimensions. This could make it possible to probe the discretization of extra dimensions and non-trivial field configurations in theory spaces which have only a few sites, i.e., for coarse latticizations. Thus, the model has relevance to present and future precision neutrino oscillation experiments.

sted, utgiver, år, opplag, sider
IOP Publishing , 2005. Vol. 2005, nr 02, s. 049-
Emneord [en]
Extra Large Dimensions; Lattice Gauge Field Theories; Lattice Models of Gravity; Neutrino Physics
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-7438DOI: 10.1088/1126-6708/2005/02/049ISI: 000228861300049Scopus ID: 2-s2.0-22144474780OAI: oai:DiVA.org:kth-7438DiVA, id: diva2:12465
Forskningsfinansiär
Swedish Research Council, 621-2001-1611Swedish Research Council, 621-2002-3577
Merknad

QC 20100716

Tilgjengelig fra: 2011-06-21 Laget: 2007-09-03 Sist oppdatert: 2017-12-14bibliografisk kontrollert
Inngår i avhandling
1. Aspects of Dimensional Deconstruction and Neutrino Physics
Åpne denne publikasjonen i ny fane eller vindu >>Aspects of Dimensional Deconstruction and Neutrino Physics
2007 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

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 eld theory. In dimensional deconstruction, the fundamental theory is a four-dimensional quantum eld theory and extra spatial dimensions are generated dynamically at low energies. In this thesis, we study di erent applications of dimensional deconstruction in the contexts of neutrino masses, mixing and oscillations, Kaluza{Klein dark matter, and e ective eld theories for discretized higher-dimensional gravity.

A different possibility to understand the smallness of neutrino masses is provided by the see-saw mechanism. This is a genuinely four-dimensional mechanism, where the light neutrino masses are induced by the addition of heavy right-handed Majorana neutrinos or by other heavy degrees of freedom, such as scalar SU(2)L triplet elds. It has the attractive feature of simultaneously providing a mechanism for generating the observed baryon asymmetry of the Universe. We study in this context a specific left-right symmetric see-saw model.

sted, utgiver, år, opplag, sider
Stockholm: KTH, 2007. s. x, 104
Serie
Trita-FYS, ISSN 0280-316X ; 2007:48
Emneord
Dimensional deconstruction, higher-dimensional gauge theories, discretized gravity, neutrino mass, neutrino mixing, neutrino oscillations
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-4480 (URN)978-91-7178-728-6 (ISBN)
Disputas
2007-09-19, Sal F3, KTH, Lindstedtsvägen 26, Stockholm, 10:00 (engelsk)
Opponent
Veileder
Merknad
QC 20100716Tilgjengelig fra: 2007-09-03 Laget: 2007-09-03 Sist oppdatert: 2010-07-16bibliografisk kontrollert
2. Phenomenological studies of dimensional deconstruction
Åpne denne publikasjonen i ny fane eller vindu >>Phenomenological studies of dimensional deconstruction
2005 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

In this thesis, two applications of dimensional deconstruction are studied. The first application is a model for neutrino oscillations in the presence of a large decon- structed extra dimension. In the second application, Kaluza{Klein dark matter from a latticized universal extra dimension is studied. The goal of these projects have been twofold. First, to see whether it is possible to reproduce the relevant features of the higher-dimensional continuum theory, and second, to examine the effect of the latticization in experiments. In addition, an introduction to the the- ory of dimensional deconstruction as well as to the theory of continuous extra dimensions is given. Furthermore, the various higher-dimensional models, such as Arkani-Hamed{Dvali{Dimopolous (ADD) models and models with universal extra dimensions, that have been intensively studied in recent years, are discussed.

sted, utgiver, år, opplag, sider
Stockholm: KTH, 2005. s. vii, 58
Serie
Trita-FYS, ISSN 0280-316X ; 2005:69
Emneord
Dimensional deconstruction, higher-dimensional gauge theories, neu- trino mixing, neutrino oscillations, universal extra dimensions, ADD models, Ka- luza{Klein dark matter
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-567 (URN)91-7178-218-4 (ISBN)
Presentation
2005-12-09, 112:028, AlbaNova, hus 11, Roslagstullsbacken 11, Stockholm, 10:00
Opponent
Veileder
Merknad
QC 20101202Tilgjengelig fra: 2005-12-28 Laget: 2005-12-28 Sist oppdatert: 2011-12-09bibliografisk kontrollert

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