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SUMMARY:Asymptotic Safety and  the Litim Sannino Model
DTSTART;VALUE=DATE-TIME:20240411T071500Z
DTEND;VALUE=DATE-TIME:20240411T081500Z
DTSTAMP;VALUE=DATE-TIME:20260909T213942Z
UID:indico-contribution-1472@events.ncbj.gov.pl
DESCRIPTION:Speakers: Daniele Rizzo (National Center for Nuclear Research 
 (NCBJ)\, Warsaw\, Poland)\nWhen studying the running of coupling constants
  in some theories - including the Standard Model of particle physics - we 
 may find that perturbation theory cannot be used to describe the theory fo
 r very low or very high energy scales. The assumption of an ultra-violet (
 UV) interacting Fixed Point (FP) can preserve the theory from running into
  infinity. This solution is called Asymptotic Safety (AS). I will present 
 a toy model of non-abelian gauge fields and quarks in the large Nc limit a
 nd show how the theory at the UV FP is described by only one (small and po
 sitive) real parameter\, so that all the interesting quantities are polyno
 mials in such parameter. I will present both a perturbative and a non-pert
 urbative analysis of the UV FP and discuss the validity of the assumption 
 of AS as a function of the single parameter of the theory.\n\nhttps://even
 ts.ncbj.gov.pl/event/300/contributions/1472/
LOCATION:NCBJ Room 207
URL:https://events.ncbj.gov.pl/event/300/contributions/1472/
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