Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?
Abstract
We fit WMAP5 and related data by allowing for a CDM-DE coupling and non-zero neutrino masses, simultaneously. We find a significant correlation between these parameters, so that simultaneous higher coupling and {nu}-masses are allowed. Furthermore, models with a significant coupling and {nu}-mass are statistically favoured in respect to a cosmology with no coupling and negligible neutrino mass (our best fits are: C{approx}1/2 m{sub p}, m{sub {nu}{approx}0}.12 eV per flavor). We use a standard Monte Carlo Markov Chain approach, by assuming DE to be a scalar field self-interacting through Ratra-Peebles or SUGRA potentials.
- Authors:
-
- Department of Physics G. Occhialini-Milano-Bicocca University, Piazza della Scienza 3, 20126 Milano (Italy)
- Institute of Theoretical Astrophysics, University of Oslo, Box 1029, 0315 Oslo (Norway)
- Department of Physics and Astronomy, University of Southern California, Los Angeles, CA 90089-0484 (United States)
- Publication Date:
- OSTI Identifier:
- 21410205
- Resource Type:
- Journal Article
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1241; Journal Issue: 1; Conference: Conference on invisible universe, Paris (France), 29 Jun - 3 Jul 2009; Other Information: DOI: 10.1063/1.3462710; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRELATIONS; COSMOLOGY; COUPLING; FLAVOR MODEL; MARKOV PROCESS; MASS; MONTE CARLO METHOD; NEUTRINOS; NONLUMINOUS MATTER; PARTIAL DIFFERENTIAL EQUATIONS; SCALAR FIELDS; CALCULATION METHODS; COMPOSITE MODELS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; LEPTONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; PARTICLE MODELS; QUARK MODEL; STOCHASTIC PROCESSES
Citation Formats
Bonometto, S A, La Vacca, G, I.N.F.N., Sezione di Milano, Kristiansen, J R, Mainini, R, and Colombo, L P. L. Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?. United States: N. p., 2010.
Web. doi:10.1063/1.3462710.
Bonometto, S A, La Vacca, G, I.N.F.N., Sezione di Milano, Kristiansen, J R, Mainini, R, & Colombo, L P. L. Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?. United States. https://doi.org/10.1063/1.3462710
Bonometto, S A, La Vacca, G, I.N.F.N., Sezione di Milano, Kristiansen, J R, Mainini, R, and Colombo, L P. L. 2010.
"Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?". United States. https://doi.org/10.1063/1.3462710.
@article{osti_21410205,
title = {Do WMAP data favor neutrino mass and a coupling between Cold Dark Matter and Dark Energy?},
author = {Bonometto, S A and La Vacca, G and I.N.F.N., Sezione di Milano and Kristiansen, J R and Mainini, R and Colombo, L P. L.},
abstractNote = {We fit WMAP5 and related data by allowing for a CDM-DE coupling and non-zero neutrino masses, simultaneously. We find a significant correlation between these parameters, so that simultaneous higher coupling and {nu}-masses are allowed. Furthermore, models with a significant coupling and {nu}-mass are statistically favoured in respect to a cosmology with no coupling and negligible neutrino mass (our best fits are: C{approx}1/2 m{sub p}, m{sub {nu}{approx}0}.12 eV per flavor). We use a standard Monte Carlo Markov Chain approach, by assuming DE to be a scalar field self-interacting through Ratra-Peebles or SUGRA potentials.},
doi = {10.1063/1.3462710},
url = {https://www.osti.gov/biblio/21410205},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1241,
place = {United States},
year = {Wed Jun 23 00:00:00 EDT 2010},
month = {Wed Jun 23 00:00:00 EDT 2010}
}
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