Unparticle effects in Supernovae cooling

TL;DR

This paper investigates how unparticles, a scale-invariant sector, could influence supernovae cooling by affecting energy-loss rates, with implications depending on unparticle parameters like scale and anomalous dimension.

Contribution

It is the first to analyze the impact of unparticle physics on supernovae cooling, linking particle physics with astrophysical phenomena.

Findings

Energy-loss rate depends strongly on aU and U parameters.

Unparticle effects could significantly alter supernovae cooling processes.

Potential constraints on unparticle parameters from astrophysical observations.

Abstract

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. We found that the energy-loss rate (and thus the cooling) is strongly dependent on the effective scale \LdaU and the anomalous dimension \dU of this unparticle theory.