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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-6643
DTSTART:20210914T210000Z
DTEND:20210914T220000Z
DTSTAMP:20260405T232624Z
LAST-MODIFIED:20210908T204002Z
LOCATION:Chamberlin 5280
SUMMARY:The Geometric SMEFT description of curved Higgs Field Space(s)
 \, Theory Seminar (High Energy/Cosmology)\, Michael Trott\, Niels Bohr
  Institute
DESCRIPTION:In recent years\, the effective field theory approach to t
 he Standard Model\,
\nthe SMEFT\, has been used to study LHC data with
  ever increasing theoretical precision and
\nsophistication. However\,
  the complexity of this theory lead to several barriers to 
\nsubstant
 ial theoretical progress. In particular\, the explosion in the number 
 of parameters in the SMEFT
\nas a function of operator mass dimension\
 , and the technical challenge or reformulating
\nSM predictions consis
 tently into the SMEFT were very serious problems\, that called into 
\
 nquestion the possible success and value of the SMEFT physics program 
 over the long term.
\nI will discuss how these challenges have been ov
 ercome. The key point leading to this advance
\nis the understanding t
 hat the projection of curved scalar field spaces generated by the Higg
 s onto 
\na naive flat field space understanding implicitly embedded i
 nto the usual SMEFT Lagrangian was the root
\ncause of many problems a
 nd confusions. Many outstanding issues have been remarkably addressed 
 and 
\nimmediately overcome by reformulating the SMEFT noting its curv
 ed scalar field space - in the Geometric SMEFT. 
\nSome examples of th
 e benefits of this approach will be presented\, and explained.
\n
\nNo
 te: This is a hybrid event. A zoom link will be distributed via the se
 minar mailing list. To join\, email the organizer.
URL:https://www.physics.wisc.edu/events/?id=6643
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