Year: 2007
Type: article
Abstract: We discuss properties of hypothetical scale invariant (unparticle) matter by viewing it as a tower of massive particles. We show how peculiar properties of unparticles emerge in the limit when the mass spacing parameter $\ensuremath{\Delta}$ vanishes. We explain why the unparticle cannot decay in this limit and how, for finite $\ensuremath{\Delta}$, the decays manifest themselves in a relation between the reconstructed invariant mass and vertex displacement. We describe a model field theory in ${\mathrm{AdS}}_{5}$ which explicitly implements the deconstruction procedure by truncating the extra dimension to size of order $1/\ensuremath{\Delta}$.
Author: M. A. Stephanov
Institution: University of Illinois Chicago
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Award: G3799113723
OpenAlex ID: W1998259560