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DTSTART:20191103T020000
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DTSTART:20200308T020000
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UID:calendar.399.field_slac_event_date.0@theory.slac.stanford.edu
DTSTAMP:20200814T140506Z
CREATED:20190808T045522Z
DESCRIPTION:Abstract\n -------Invoking increasingly higher dimension counter
terms to encode novel UV physics in effective gauge and gravity theories t
raditionally means working with increasingly more finicky and difficult op
erators. Can this be simplified? Yes! I will show that many higher derivat
ive operators at four-points can be absorbed into simple higher-derivative
corrections to scalar theories\, which generate the predictions of local
Yang-Mills and Gravity operators by suitable replacements of color-weights
with color-dual kinematic weights as per double-copy construction. I will
exploit the fact that Jacobi satisfying representations can be composed o
ut of other Jacobi satisfying representations\, and we will see that at fo
ur-points only a small number of building blocks are required to generate
the predictions of these higher-derivative operators. I will at least ske
tch out two natural double-copy striations at 4-points for these operators
: the by now familiar adjoint-type (f^{abc}) description as well as a perm
utation invariant (d^{abcd}) type striation\, each with their own advantag
es and associated double-copy prescriptions. These constructions saturate
the higher-derivative operators contributing to the four-point supersymmet
ric open and closed-string tree amplitudes.
DTSTART;TZID=America/Los_Angeles:20191009T133000
DTEND;TZID=America/Los_Angeles:20191009T150000
LAST-MODIFIED:20191003T004913Z
LOCATION:Madrone
SUMMARY:EPP Theory Seminar: John Joseph Carrasco: Counterterms as Tinkertoy
s
URL;TYPE=URI:https://theory.slac.stanford.edu/events/epp-theory-seminar-joh
n-joseph-carrasco-counterterms-tinkertoys
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