Affiliation:
1. SLAC National Accelerator Laboratory
Abstract
The large-Nc
or topologically planar limit of gauge theories can be considered as a
classical limit because all gauge bosons are distinguishable particles
and therefore cannot exhibit interference. Quantum effects due to the
flow of color therefore arise starting at subleading in
1/Nc.
We introduce kinematic observables explicitly sensitive to effects at
subleading color formed from the ratio of interfering to squared
color-ordered amplitudes. Such observables are in general not infrared
and collinear safe, so we introduce angular observables defined from
appropriate multi-point energy correlators motivated by the form of
color-ordered amplitudes. We demonstrate that color interference effects
are manifest as sinusoidal oscillation in the simplest system, a
collinear jet with three particles, and show the limitations of
predicting this observable in all-purpose, leading-color parton shower
Monte Carlos.
Funder
United States Department of Energy
Subject
General Physics and Astronomy
Cited by
1 articles.
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