High Energy Theory Seminar
Absence of Three-Loop Four-Point Divergences in N=4 Supergravity
We compute the coefficient of the potential three-loop divergence in pure N=4 supergravity and show that it vanishes, contrary to expectations from symmetry arguments. The recently uncovered duality between color and kinematics is used to greatly streamline the calculation. We comment on all-loop cancellations hinting at further surprises awaiting discovery at higher loops.
Date & Time
February 24, 2012 | 1:30pm – 3:00pm
Location
Bloomberg Lecture HallSpeakers
Tristan Dennen
Affiliation
University of California, Los Angeles