Planck 2018&nbsp;<br /> <h2>From the Planck Scale to the Electroweak Scale</h2>

Session

Parallel Session on Relaxion/Light bosons

23 May 2018, 16:10

Bonn

91. Cosmological Higgs relaxation without inflation

Nayara Fonseca (DESY)

23/05/2018, 16:10

The relaxion models propose a new idea to explain the smallness of the Higgs mass. They rely on the scanning of the Higgs mass parameter by a new field, the relaxion, and a back-reaction mechanism that is triggered when Higgs vacuum expectation value has reached the size of the electroweak scale, making the relaxion evolution cease. In the usual relaxion model the scanning happens during an...

92. Relaxion Dark Matter

Enrico Morgante (DESY)

23/05/2018, 16:30

I discuss a scenario in which the relaxion field, whose evolution in the early universe is responsible for the smallness of EW scale compared to the cutoff of the theory, also constitutes the Dark Matter of the Universe.

93. Backreaction in the dynamical relaxation

Adam Markiewicz (University of Warsaw)

23/05/2018, 16:50

Dynamical relaxation in an interesting framework in which the scale of new physics is pushed far beyond the observable range without abandoning the principles of naturalness. A low value of the electroweak scale originates from a dynamical selection process that comes from an interaction between the Higgs boson and an axion-like particle (a relaxion). During the relaxation, the relaxion rolls...

95. Generalized Clockwork Theory

Dr Ido Ben-Dayan (Ariel University)

23/05/2018, 17:10

I show how generating hierarchy via the clockwork mechanism can be generalized in various directions including nonabelian global groups, supergravity and Susy breaking.