Collider signals of unparticle physics |
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Authors: | Cheung Kingman Keung Wai-Yee Yuan Tzu-Chiang |
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Institution: | Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan. |
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Abstract: | Phenomenology of the notion of an unparticle U, recently perceived by Georgi, to describe a scale invariant sector with a nontrivial 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 O(U)) invisible massless particles, this unparticle can be unveiled by measurements of various energy distributions for the processes Z-->f f U and e- e+-->gammaU at e- e+ colliders, as well as monojet 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. |
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