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VERSION:2.0
CALSCALE:GREGORIAN
PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:2
UID:UW-Physics-Event-6643
DTSTART:20210914T210000Z
DTEND:20210914T220000Z
DTSTAMP:20231001T224749Z
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 Boh
r 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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