Speaker
Prof.
kingman Cheung
(Natl Tsing Hua Univ)
Description
Phenomenology of the notion of an unparticle $\U$, recently perceived
by Georgi, to describe a scale invariant sector with a non-trivial
infrared fixed point at a higher energy scale is explored in details.
Behaving like a collection of $d_\U$ (the scale dimension of the
unparticle operator $\cal O_U$) invisible massless particles, this
unparticle can be unveiled by measurements of various energy
distributions for the processes $Z \to f \bar f \U$ and $e^- e^+ \to
\gamma \U$ at $e^-e^+$ colliders, as well as mono-jet production at
hadron colliders. We also study the propagator effects of the
unparticle through the Drell-Yan tree level process and the one-loop
muon anomaly.
Author
Prof.
kingman Cheung
(Natl Tsing Hua Univ)