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Title: General description of neutrino oscillations with non-standard interactions
Authors: Szafron, Robert
Advisor: Zrałek, Marek
Keywords: interakcje neutrin; neutrino
Issue Date: 2012
Publisher: Katowice : Uniwersytet Śląski
Abstract: We present a formalism describing neutrino oscillations in any application beyond the Standard Model theory. Instead of using the standard pure states approach, we apply the density matrix formalism. In general, in New Physics models, neutrino states are no longer as pure as they are in the Standard Model. We discuss the details of the appearance of a mixed state, following which possible New Physics effects are taken at the levels of both the production and detection processes. We present a number of examples of calculations with our formalism, using muons as a source of neutrinos and different detection process. We also show the connection between normal formulae, derived by assuming pure states, and proper results based on the density matrix approach. The difference occurs at the second order in parameters describing the departure from the Standard Model. Finally, as an application of our formalism, we also demonstrate that it is possible to distinguish Dirac and Majorana neutrinos in oscillations when New Physics scalar interactions are present.
Appears in Collections:Rozprawy doktorskie (WNŚiT)

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