Speaker
Zhenyu Han
(University of Oregon)
Description
In this talk, I will introduce the concept of jet radiation radius which quantifies how the jet radiation is distributed around the jet axes. I discuss the color and momentum dependence of the jet radiation radius, and two applications: quark-gluon discrimination and W jet tagging. In both cases, smaller (sub)jet radii are preferred for jets with higher PTs, albeit due to different mechanisms: the running of the QCD coupling constant and the boost to a color singlet system. A shrinking cone W jet tagging algorithm is proposed to achieve better discrimination than previous methods.
Primary author
Zhenyu Han
(University of Oregon)
