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T: Fachverband Teilchenphysik

T 20: Beyond the Standard Model (Theorie) 1

T 20.1: Vortrag

Montag, 27. März 2017, 16:45–17:00, VSH 19

Kaluza-Klein spectrum and altered dispersion relations of fermions in asymmetrically warped five dimensional spacetimes — •Dominik Döring — Technische Universität Dortmund, Germany

Warped extra dimensions have been a powerful tool for model builders to solve the hierarchy problem since the late 1990’s.
We studied properties of SM singlet fermions in a compactified and asymmetrically warped extra dimensional spacetime, such as the Kaluza-Klein (KK) mass spectrum and the alteration of the dispersion relation (ADR) on the visible 3-brane. These ADRs induce new phenomenology on neutrino oscillations between active brane neutrinos and sterile bulk neutrinos.
An analytical analysis showed that the KK mass spectrum of such a model does not differ from symmetrically warped models, although the dispersion relation on the 3-brane is altered by operators that arise from KK decomposition. We were able to show that the effect on active-sterile neutrino oscillation bears resemblance with matter effects on active neutrino oscillation.