PIRSA:C18012 - Asymptotic Safety in a Dark UniversePODCAST Subscribe to podcast

Asymptotic Safety in a Dark Universe

Organizer(s): Niayesh Afshordi   Astrid Eichhorn   Robert Mann  

Collection URL: http://pirsa.org/C18012

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PIRSA:18060009  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Charting Fundamental Interactions
Speaker(s): Francesco Sannino
Abstract: I summarise the state-of-the-art in our understanding of fundamental interactions and will set the stage for present and future studies and phenomenological applications.
Date: 05/06/2018 - 9:15 am

PIRSA:18060010  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Asymptotic safety with and without supersymmetry
Speaker(s): Daniel Litim
Abstract: I discuss the state of affairs for asymptotic safety in particle physics with and without supersymmetry.
Date: 05/06/2018 - 10:00 am

PIRSA:18060011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Discussion 1
Date: 05/06/2018 - 11:15 am

PIRSA:18060013  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Progress in constructing an Asymptotically safe Standard Model
Speaker(s): Steven Abel
Abstract: I outline a configuration in which the Standard Model can be embedded into an asymptotically safe gauge-Yukawa theory. The model can be though of as a minimal UV completion of the SM without gravity. I also discuss the remaining issues that need to be addressed for the scheme to be phenomenological... read more
Date: 05/06/2018 - 2:30 pm

PIRSA:18060014  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Cosmological non-Constant Problem
Speaker(s): Niayesh Afshordi
Abstract: I will discuss how studying the gravitational effects of UV physics on large (astrophysical) scales precludes new mass scales in BSM physics beyond 600 GeV.
Date: 05/06/2018 - 3:45 pm

PIRSA:18060012  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Discussion 2
Date: 05/06/2018 - 4:30 pm

PIRSA:18060015  ( MP4 Medium Res , MP3 , PDF ) Which Format?
UV-complete relativistic field theories and softened gravity
Speaker(s): Alberto Salvio
Abstract: A field theory is fundamental if it features a UV fixed point (either trivial or interacting). Gravity may not change drastically the UV behavior if the Einstein gravitational interactions are softened above a critical sub-Planckian energy scale. A concrete implementation of this softened gravity ca... read more
Date: 06/06/2018 - 9:15 am

PIRSA:18060022  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Asymptotic safety of gravity-matter systems and effective universality
Speaker(s): Manuel Reichert
Abstract: We review the status of asymptotically safe gravity-matter systems. The existence of a UV fixed point in such systems is guaranteed if the matter-self couplings are weak and if higher-derivative gravity terms are neglected. We show how this can manifest itself in a functional renormalisation group c... read more
Date: 06/06/2018 - 10:00 am

PIRSA:18060023  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Shedding light on dark matter in asymptotic safety
Speaker(s): Astrid Eichhorn
Abstract: The nature of dark matter is one of the outstanding riddles of fundamental physics. Here, I will discuss first steps to explore dark matter in the asymptotic safety paradigm. As a first example, I will show indications for an asymptotically safe fixed point in the Higgs portal to fermionic dark matt... read more
Date: 06/06/2018 - 11:15 am

PIRSA:18060025  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Beta functions at large N_f
Abstract: Including a large number of vector-like fermions can be used to generate fixed points for the RG flows of gauge theories. Recently this has been used as a foundation for constructing UV safe models. The talk will focus on the machinery behind the large N_f computations extended to generic gauge-Yuka... read more
Date: 06/06/2018 - 2:30 pm

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