Unparticle effects in Supernovae cooling

Understand

Recently H.

• Georgi suggested that a scale invariant unparticle ${\mathcal{U}}$ sector with an infrared fixed point at high energy can couple with the SM matter via a higher-dimensional operator suppressed by a high cut-off scale.
• Intense phenomenological search of this unparticle sector in the collider and flavour physics context has already been made.
• Here we explore it's impact in cosmology, particularly it's possible role in the supernovae cooling.