Unparticle effects in supernovae cooling

Journal Article · Sat Dec 15 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.123012· OSTI ID:21024005

Das, Prasanta Kumar ^[1]

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1. Birla Institute of Technology and Science-Pilani, Goa Campus, NH-17B, Zuarinagar, GOA- 403726 (India)

Recently H. Georgi suggested that a scale-invariant unparticle U sector with an infrared fixed point at high energy can couple with the standard model matter via a higher-dimensional operator suppressed by a high cutoff scale. Intense phenomenological search of this unparticle sector in the collider and flavor physics context has already been made. Here we explore its impact in cosmology, particularly its possible role in the supernovae cooling. We found that the energy-loss rate (and thus the cooling) is strongly dependent on the effective scale {lambda}{sub U} and the anomalous dimension d{sub U} of this unparticle theory.

• OSTI ID: 21024005
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 12 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANOMALOUS DIMENSION
COSMOLOGY
COUPLING
ENERGY LOSSES
FIELD OPERATORS
FLAVOR MODEL
MANY-DIMENSIONAL CALCULATIONS
SCALE INVARIANCE
STANDARD MODEL