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X-WR-CALNAME:Centre for Mathematical Sciences
X-ORIGINAL-URL:https://math-sciences.org
X-WR-CALDESC:Events for Centre for Mathematical Sciences
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TZID:UTC
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TZOFFSETFROM:+0000
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DTSTART:20210101T000000
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DTSTART;TZID=UTC:20210303T160000
DTEND;TZID=UTC:20210303T170000
DTSTAMP:20230921T200515
CREATED:20201210T150519Z
LAST-MODIFIED:20210224T195710Z
UID:3965-1614787200-1614790800@math-sciences.org
SUMMARY:René Sondenheimer (Graz)
DESCRIPTION:Physical observables in Brout-Englert-Higgs theories \nWe will use the method proposed by Fröhlich\, Morchio\, and Strocchi to analyze the spectrum of gauge theories with a Brout-Englert-Higgs mechanism. This formalism relates gauge-invariant bound state operators to invariant objects of the remaining unbroken gauge group after gauge fixing which provides a strict gauge-invariant formulation of the latter in terms of the original gauge symmetry without using the terminology of spontaneous gauge symmetry breaking. We also demonstrate that the Fröhlich-Morchio-Strocchi approach allows us to put new constraints on theories beyond the standard model by pure field-theoretical considerations and emphasize the exceptional role of the standard model weak gauge group. Particularly the conventional construction of grand unified theories has to be rethought.
URL:https://math-sciences.org/event/rene-sondenheimer-graz/
LOCATION:Zoom
CATEGORIES:Seminars,Theoretical Physics
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