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Sep 27 – 30, 2016
DESY Hamburg
Europe/Berlin timezone

Realizing the Relaxion with N-site Models

Sep 28, 2016, 3:20 PM
Seminar room 4a (DESY Hamburg)

Seminar room 4a

DESY Hamburg

Notkestrasse 85, 22607 Hamburg


Nayara Fonseca (DESY)


Relaxion models are an interesting new avenue to explain the radiative stability of the Standard Model scalar sector. They require very large field excursions, which are difficult to generate in a consistent UV completion and to reconcile with the compact field space of the relaxion. We propose an N-site model which naturally generates the large decay constant needed to address these issues. Our model offers distinct advantages with respect to previous proposals: the construction involves non-abelian fields, allowing for controlled high energy behaviour and more model building possibilities, both in particle physics and inflationary models, and also admits a continuum limit when the number of sites is large, which may be interpreted as a warped extra dimension.

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