Speaker
Albert Bekov
(T (Stringtheory))
Description
Using twistor methods for determinant operators, we compute
integrands for correlators of external half-BPS operators of
arbitrary charges and polarizations at one and two loops and at
five and six points, in the planar limit. Collecting integrands
for all charges in a generating function, that generating
functions displays poles at ten-dimensional null limits which
effectively produce cuts in the color surface. Taking the
cyclic 10d null polygon limit cuts the color sphere into two
disks. The generating function in this limit is conjecturally
equal to the integrand of a Coulomb-branch amplitude. Isolating
this limit directly at the level of twistors, we compute the
two-loop Coulomb-branch integrand for any number of particles.
Primary authors
Albert Bekov
(T (Stringtheory))
Dr
Carlos Bercini
(DESY Hamburg)
Dr
Frank Coronado
(ETH Zurich)
Till Bargheer
(T (Stringtheory))
