Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest

doi:https://doi.org/10.1103/PhysRevD.71.063534

Title: Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest

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Abstract

The matter power spectrum at comoving scales of (1-40)h{sup -1} Mpc is very sensitive to the presence of Warm Dark Matter (WDM) particles with large free-streaming lengths. We present constraints on the mass of WDM particles from a combined analysis of the matter power spectrum inferred from the large samples of high-resolution high signal-to-noise Lyman-{alpha} forest data of Kim et al. (2004) and Croft et al. (2002) and the cosmic microwave background data of WMAP. We obtain a lower limit of m{sub WDM} > or approx. 550 eV (2{sigma}) for early decoupled thermal relics and m{sub WDM} > or approx. 2.0 keV (2{sigma}) for sterile neutrinos. We also investigate the case where in addition to cold dark matter a light thermal gravitino with fixed effective temperature contributes significantly to the matter density. In that case the gravitino density is proportional to its mass, and we find an upper limit m{sub 3/2} < or approx. 16 eV (2{sigma}). This translates into a bound on the scale of supersymmetry breaking, {lambda}{sub susy} < or approx. 260 TeV, for models of supersymmetric gauge mediation in which the gravitino is the lightest supersymmetric particle.

Authors:

Viel, Matteo; Haehnelt, Martin G ^[1]; Lesgourgues, Julien ^[2]; Matarrese, Sabino ^[3]; Riotto, Antonio ^[4]

Institute of Astronomy, Madingley Road, Cambridge CB3 0HA (United Kingdom)
Laboratoire de Physique Theorique LAPTH, F-74941 Annecy-le-Vieux Cedex (France)
Dipartimento di Fisica 'G. Galilei', Universita di Padova, Via Marzolo 8, I-35131 Padova (Italy)
INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova (Italy)

Publication Date:: 2005-03-15

OSTI Identifier:: 20706201

Resource Type:: Journal Article

Journal Name:: Physical Review. D, Particles Fields

Additional Journal Information:: Journal Volume: 71; Journal Issue: 6; Other Information: DOI: 10.1103/PhysRevD.71.063534; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMIC RADIATION; DENSITY; ENERGY SPECTRA; EV RANGE; KEV RANGE; NEUTRINOS; NONLUMINOUS MATTER; RADIOWAVE RADIATION; RELICT RADIATION; REST MASS; SPARTICLES; SUPERSYMMETRY; SYMMETRY BREAKING; TEV RANGE

Citation Formats


                    Viel, Matteo, Haehnelt, Martin G, Lesgourgues, Julien, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Matarrese, Sabino, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, and Riotto, Antonio. Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest.  United States: N. p., 2005. 
        Web.  doi:10.1103/PhysRevD.71.063534.

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                    Viel, Matteo, Haehnelt, Martin G, Lesgourgues, Julien, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Matarrese, Sabino, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, & Riotto, Antonio. Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest.  United States.  https://doi.org/10.1103/PhysRevD.71.063534

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                    Viel, Matteo, Haehnelt, Martin G, Lesgourgues, Julien, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, Matarrese, Sabino, INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova, and Riotto, Antonio. Tue .  
        "Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest".  United States.  https://doi.org/10.1103/PhysRevD.71.063534.

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@article{osti_20706201,

  title        = {Constraining warm dark matter candidates including sterile neutrinos and light gravitinos with WMAP and the Lyman-{alpha} forest},

  author       = {Viel, Matteo and Haehnelt, Martin G and Lesgourgues, Julien and INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova and Matarrese, Sabino and INFN, Sezione di Padova, Via Marzolo 8, I-35131 Padova and Riotto, Antonio},

  abstractNote = {The matter power spectrum at comoving scales of (1-40)h{sup -1} Mpc is very sensitive to the presence of Warm Dark Matter (WDM) particles with large free-streaming lengths. We present constraints on the mass of WDM particles from a combined analysis of the matter power spectrum inferred from the large samples of high-resolution high signal-to-noise Lyman-{alpha} forest data of Kim et al. (2004) and Croft et al. (2002) and the cosmic microwave background data of WMAP. We obtain a lower limit of m{sub WDM} > or approx. 550 eV (2{sigma}) for early decoupled thermal relics and m{sub WDM} > or approx. 2.0 keV (2{sigma}) for sterile neutrinos. We also investigate the case where in addition to cold dark matter a light thermal gravitino with fixed effective temperature contributes significantly to the matter density. In that case the gravitino density is proportional to its mass, and we find an upper limit m{sub 3/2} < or approx. 16 eV (2{sigma}). This translates into a bound on the scale of supersymmetry breaking, {lambda}{sub susy} < or approx. 260 TeV, for models of supersymmetric gauge mediation in which the gravitino is the lightest supersymmetric particle.},

  doi          = {10.1103/PhysRevD.71.063534},

  url          = {https://www.osti.gov/biblio/20706201},
  journal      = {Physical Review. D, Particles Fields},

  issn         = {0556-2821},

  number       = 6,

  volume       = 71,

  place        = {United States},

  year         = {2005},

  month        = {3}

}

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