Conveners
Workshop on New physics paradigms after Higgs and gravitational wave discoveries
- Ignatios Antoniadis (CERN)
Workshop on New physics paradigms after Higgs and gravitational wave discoveries
- Ignatios Antoniadis (CERN)
Workshop on New physics paradigms after Higgs and gravitational wave discoveries
- Elena Arbuzova (Dubna State University and Novosibirsk State University)
Workshop on New physics paradigms after Higgs and gravitational wave discoveries
- Peter Minkowski (Universitaet Bern (CH))
Stochastic gravitational waves can be produced during the preheating when out-of-equilibrium particles are produced with an anisotropic stress-tensor. We discuss the case where these particles carry spin 3/2. We compute the spectrum of the gravitational waves generated by the transverse and longitudinal components. We find a different scaling of the spectrum near the peak and the longitudinal...
Since new coloured states have been strongly constrained by LHC searches, extended electroweak sectors have become of paramount interest. However, the quantum corrections to these sectors can be very large; in the classic example of the MSSM, the Higgs mass has very large corrections at two loop order. On the other hand, in the MSSM, or even in the Two Higgs Doublet Model, the electroweak...
In this work we consider a warped five-dimensional model with an ultraviolet (UV) brane and, on top of the Standard Model zero modes, continua of KK modes with different mass gaps for all particles: gauge bosons, fermions, graviton, radion and Higgs boson. The model can be considered as a modelization in five dimensions of gapped unparticles. It has a singularity, at a finite (infinite) value...
Primordial Intermediate Black Holes as Dark Matter
It is known that de Sitter solutions in supergravity require supersymmetry breaking. I will present a new construction that allows the inclusion of the goldstino into supergravity, based on applying the Stueckelberg trick to a novel superfield formulation of unimodular supergravity. I will show the existence of de Sitter solutions and also the connection to the Volkov-Akulov model in the flat...
For an isotropic cosmological model with a spatial curvature supported by a self-interacting scalar field minimally coupled to gravity, we construct and analyze a special integrable potential which approximates the potential of the Starobinsky R+R^2 inflationary model in the Einstein frame, and derive the general analytic solution of the corresponding Einstein–Friedmann equations. We...
Classical and quantum dynamics of higher derivative systems
I will briefly present the main ideas of the Generalized Uncertainty Principle (GUP) and the Extended Uncertainty Principle (EUP). Then, first I will discuss the impact of GUP onto the Bekenstein entropy and the Hawking temperature and show how GUP influences the Hawking radiation leaving a remnant of a radiating black hole. I will also show that when GUP is applied, the Hawking radiation does...
Deviations of R^2 cosmology from the Einstein's General Relativity
Inflation can explain why the Universe is flat and homogeneous at large scales. However, it is not falsifiable unless also responsible for the matter perturbations sourcing the cosmic structure formation and anisotropy of cosmic microwave background. Moreover, even in that case different models often give (almost) the same predictions for the cosmological spectra, and it would be nice to test...
