Interactions of Unparticles with Standard Model Particles

Understand

We study interactions of unparticles ${\cal {U}}$ of dimension $d_{\cal {U}}$ due to Georgi with Standard Model (SM) fields through effective operators.

• The unparticles describe the low energy physics of a non-trivial scale invariant sector.
• Since unparticles come from beyond the SM physics, it is plausible that they transform as a singlet under the SM gauge group.
• This helps tremendously in limiting possible interactions.