Supernova constraints on models of neutrino dark energy

Journal Article · Mon May 15 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.103503· OSTI ID:20774667

Hong, Li; Junqing, Xia; Xinmin, Zhang ^[1]; Bo, Feng ^[2]

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1. Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918-4, Beijing 100049 (China)
2. National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Beijing 100012 (China)

In this paper we use the recently released Type Ia Supernova (SNIa) data to constrain the interactions between the neutrinos and the dark energy scalar fields. In the analysis we take the dark energy scalars to be either quintessencelike or phantomlike. Our results show the data mildly favor a model where the neutrinos couple to a phantomlike dark energy scalar, which implies the equation of state of the coupled system behaves like Quintom scenario in the sense of parameter degeneracy. We find future observations like SNAP are potentially promising to measure the couplings between neutrino and dark energy.

• OSTI ID: 20774667
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 10 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMIC NEUTRINOS
COUPLING
EQUATIONS OF STATE
NONLUMINOUS MATTER
PARTICLE INTERACTIONS
SCALAR FIELDS
SCALARS
SUPERNOVAE