Top off the unparticle
Debajyoti Choudhury, Dilip Kumar Ghosh

TL;DR
This paper explores how unparticle physics, involving a scale-invariant sector interacting with the Standard Model, can be constrained by top quark measurements at colliders like the Tevatron and LHC.
Contribution
It demonstrates that existing top physics data can impose constraints on unparticle theories and discusses potential signatures for future collider experiments.
Findings
Tevatron data constrains unparticle models
LHC can improve detection sensitivity
Distinctive collider signatures identified
Abstract
The existence of an exactly scale invariant sector possessing a non-trivial infrared fixed point at a higher energy scale and its possible communication with the Standard Model particles through a heavy messenger sector has been shown to lead to curious unparticle effects. We demonstrate that top physics at the Tevatron can already constrain such theories. We also consider possible improvements at the LHC and delineate some striking signatures.
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