1109.6010 (Yang-Ting Chien et al.)

Jet Physics from Static Charges in AdS    [PDF]

Yang-Ting Chien, Matthew D. Schwartz, David Simmons-Duffin, Iain W. Stewart

Soft interactions with high-energy jets are explored in radial coordinates
which exploit the approximately conformal behavior of perturbative gauge
theories. In these coordinates, the jets, approximated by Wilson lines, become
static charges in Euclidean AdS. The anomalous dimension of the corresponding
Wilson line operator is then determined by the potential energy of the charges.
To study these Wilson lines we introduce a "conformal gauge" which does not
have kinetic mixing between radial and angular directions, and show that a
number of properties of Wilson lines are reproduced through relatively simple
calculations. For example, certain non-planar graphs involving multiple Wilson
lines automatically vanish. We also discuss the linear growth of the charges'
imaginary potential energy with separation, and a relationship between Wilson
line diagrams and Witten diagrams.

View original: http://arxiv.org/abs/1109.6010