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Effects of non-standard interactions in the MINOS experiment
KTH, School of Engineering Sciences (SCI), Theoretical Physics.ORCID iD: 0000-0001-5948-9152
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
2008 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 660, no 5, 522-528 p.Article in journal (Refereed) Published
Abstract [en]

We investigate the effects of non-standard interactions on the determination of the neutrino oscillation parameters Delta m(31)(2), theta(23), and theta(13) in the MINOS experiment. We show that adding non-standard interactions to the analysis lead to an extension of the allowed parameter space to larger values of Delta m(31)(2) and smaller theta(23), and basically removes all predictability for theta(13). In addition, we discuss the sensitivities to the non-standard interaction parameters of the MINOS experiment alone. In particular, we examine the degeneracy between theta(13) and the non-standard interaction parameter epsilon(e tau). We find that this degeneracy is responsible for the removal of the theta(13) predictability and that the possible bound on vertical bar epsilon(e tau)vertical bar is competitive with direct bounds only if a more stringent external bound on theta(13) is applied.

Place, publisher, year, edition, pages
Elsevier B.V. , 2008. Vol. 660, no 5, 522-528 p.
Keyword [en]
Neutrino oscillation experiments, line-experiment-simulator, matter, spectroscopy, physics
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-7249DOI: 10.1016/j.physletb.2008.01.049ISI: 000254034000014ScopusID: 2-s2.0-39149110271OAI: diva2:12204
Swedish Research Council, 621-2005-3588
QC 20100630Available from: 2011-06-17 Created: 2007-05-31 Last updated: 2011-06-17Bibliographically approved
In thesis
1. Theoretical and Phenomenological Studies of Neutrino Physics
Open this publication in new window or tab >>Theoretical and Phenomenological Studies of Neutrino Physics
2007 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

This thesis is devoted to the theory and phenomenology of neutrino physics. While the standard model of particle physics has been extremely successful, it fails to account for massive neutrinos, which are necessary to describe the observations of neutrino oscillations made by several different experiments. Thus, neutrino physics is a possible window for exploring the physics beyond the standard model, making it both interesting and important for our fundamental understanding of Nature.

Throughout this thesis, we will discuss different aspects of neutrino physics, ranging from taking all three types of neutrinos into account in neutrino oscillation experiments to exploring the possibilities of neutrino mass models to produce a viable source of the baryon asymmetry of the Universe. The emphasis of the thesis is on neutrino oscillations which, given their implication of neutrino masses, is a phenomenon where other results that are not describable in the standard model could be found, such as new interactions between neutrinos and fermions.

Place, publisher, year, edition, pages
Stockholm: Teoretisk fysik, 2007. xii, 102, [7] p.
Trita-FYS, ISSN 0280-316X ; 2007:31
neutrino mass, neutrino mixing, neutrino oscillations, matter effects, non-standard effects, the day-night effect, solar neutrinos, accelerator neutrinos, exact solutions, three-flavor effects, large density, neutrino decay, neutrino decoherence, neutrino absorption, non-standard neutrino interactions, seesaw mechanism, stability criteria, leptogenesis
National Category
Physical Sciences
urn:nbn:se:kth:diva-4415 (URN)978-91-7178-646-3 (ISBN)
Public defence
2007-06-11, Oskar Kleins auditorium (FR4), Huvudbyggnaden, AlbaNova, Roslagstullsbacken 21, Stockholm, 10:00
QC 20100630Available from: 2007-05-31 Created: 2007-05-31 Last updated: 2010-06-30Bibliographically approved

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