Cosmology of mass-varying neutrinos driven by quintessence: Theory and observations

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A. W. Brookfield,¹ C. van de Bruck,² D. F. Mota,³ and D. Tocchini-Valentini⁴
¹Department of Applied Mathematics and Department of Physics, Astro-Particle Theory Cosmology Group, Hounsfield Road, Hicks Building, University of Sheffield, Sheffield S3 7RH, United Kingdom
²Department of Applied Mathematics, Astro-Particle Theory Cosmology Group, Hounsfield Road, Hicks Building, University of Sheffield, Sheffield S3 7RH, United Kingdom
³Institute of Theoretical Astrophysics, University of Oslo, 0315 Oslo, Norway
⁴Astrophysics Department, Oxford University, Keble Road, Oxford OX1 3RH, United Kingdom and Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA

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Received 10 January 2006; published 12 April 2006

Theeffects of mass-varying neutrinos on cosmic microwave background (CMB) anisotropiesand large scale structures (LSS) are studied. In these models,dark energy and neutrinos are coupled such that the neutrinomasses are functions of the scalar field playing the roleof dark energy. We begin by describing the cosmological backgroundevolution of such a system. It is pointed out that,similar to models with a dark matter/dark energy interaction, theapparent equation of state measured with SNIa can be smallerthan -1. We then discuss the effect of mass-varying neutrinoson the CMB anisotropies and the matter power spectrum. Asuppression of power in the CMB power spectrum at largeangular scales is usually observed. We give an explanation forthis behavior and discuss different couplings and quintessence potentials toshow the generality of the results obtained. We perform alikelihood analysis using wide-ranging SNIa, CMB, and LSS observations toassess whether such theories are viable. Treating the neutrino massas a free parameter we find that the constraints onthe coupling are weak, since CMB and LSS surveys giveonly upper bounds on the neutrino mass. However, fixing apriori the neutrino masses, we find that there is someevidence that the existence of such a coupling is actuallypreferred by current cosmological data over the standard LambdaCDM cosmology.

URL:	http://link.aps.org/doi/10.1103/PhysRevD.73.083515
DOI:	10.1103/PhysRevD.73.083515
PACS:	98.80.-k; 98.80.Jk 98.80.-k Cosmology 98.80.Jk Mathematical and relativistic aspects of cosmology YEAR: 2006
KEYWORDS:	neutrino mass, cosmology, dark energy, radiofrequency cosmic radiation, dark matter, supernovae, astronomical spectra

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A. Albrecht and C. Skordis, Phys. Rev. Lett. 84, 2076 (2000).
M. Doran and J. Jaeckel, Phys. Rev. D 66, 043519 (2002).
S. M. Carroll, Phys. Rev. Lett. 81, 3067 (1998).
J. A. Frieman, C. T. Hill, A. Stebbins, and I. Waga, Phys. Rev. Lett. 75, 2077 (1995).
M. Li, X. Wang, B. Feng, and X. Zhang, Phys. Rev. D 65, 103511 (2002).
P. Gu, X. Wang, and X. Zhang, Phys. Rev. D 68, 087301 (2003).
D. B. Kaplan, A. E. Nelson, and N. Weiner, Phys. Rev. Lett. 93, 091801 (2004).
P. Gu and X.-J. Bi, Phys. Rev. D 70, 063511 (2004).
X. Bi, P. Gu, X. Wang, and X. Zhang, Phys. Rev. D 69, 113007 (2004).
H. Bi, B. Feng, H. Li, and X. Zhang, Phys. Rev. D 72, 123523 (2005).
H. Li, Z. Dai, and X. Zhang, Phys. Rev. D 71, 113003 (2005).
R. D. Peccei, Phys. Rev. D 71, 023527 (2005).
A. W. Brookfield, C. van de Bruck, D. F. Mota, and D. Tocchini-Valentini, Phys. Rev. Lett. 96, 061301 (2006).
V. Barger, P. Huber, and D. Marfatia, Phys. Rev. Lett. 95, 211802 (2005).
N. Afshordi, M. Zaldarriaga, and K. Kohri, Phys. Rev. D 72, 065024 (2005).
E. J. Copeland, A. R. Liddle, and D. Wands, Phys. Rev. D 57, 4686 (1998).
L. Amendola, Phys. Rev. D 62, 043511 (2000).
L. Amendola and D. Tocchini-Valentini, Phys. Rev. D 64, 043509 (2001).
P. G. Ferreira and M. Joyce, Phys. Rev. D 58, 023503 (1998).
R. Bean, S. H. Hansen, and A. Melchiorri, Phys. Rev. D 64, 103508 (2001).
V. Barger, D. Marfatia, and K. Whisnant, Phys. Rev. D 73, 013005 (2006).
M. C. Gonzalez-Garcia, P. C. de Holanda, and R. Z. Funchal, Phys. Rev. D 73, 033008 (2006).
Y. Fukuda et al., Phys. Rev. Lett. 81, 1158 (1998).
Y. Ashi et al., Phys. Rev. Lett. 93, 101801 (2004).
E. Aliu et al., Phys. Rev. Lett. 94, 081802 (2005).
R. Kallosh, A. Linde, S. Prokushkin, and M. Shmakova, Phys. Rev. D 66, 123503 (2002).
J. Weller and A. Albrecht, Phys. Rev. D 65, 103512 (2002).
D. Tocchini-Valentini and L. Amendola, Phys. Rev. D 65, 063508 (2002).
R. Bean and O. Doré, Phys. Rev. D 69, 083503 (2004).
E. J. Copeland, A. R. Liddle, and D. Wands, Phys. Rev. D 57, 4686 (1998).
M. Pietroni, Phys. Rev. D 72, 043535 (2005).
Ph. Brax, C. van de Bruck, A.-C. Davis, and C. S. Rhodes, Phys. Rev. D 67, 023512 (2003).
C. S. Rhodes, C. van de Bruck, Ph. Brax, and A.-C. Davis, Phys. Rev. D 68, 083511 (2003).
P. J. Steinhardt, L.-M. Wang, and I. Zlatev, Phys. Rev. D 59, 123504 (1999).
P. Binetruy, Phys. Rev. D 60, 063502 (1999).
A. Lewis and S. Bridle, Phys. Rev. D 66, 103511 (2002).
O. Elgaroy et al., Phys. Rev. Lett. 89, 061301 (2002).

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Erratum

Erratum: Cosmology of mass-varying neutrinos driven by quintessence: Theory and observations [Phys. Rev. D 73, 083515 (2006)]
A. W. Brookfield, C. van de Bruck, D. F. Mota et al.
Phys. Rev. D 76, 049901 (E) (2007)