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arXiv:0711.0744 (astro-ph)
[Submitted on 6 Nov 2007 (v1), last revised 31 Mar 2008 (this version, v2)]

Title:Relaxing neutrino mass bounds by a running cosmological constant

Authors:Florian Bauer (DESY), Lily Schrempp (DESY)
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Abstract: We establish an indirect link between relic neutrinos and the dark energy sector which originates from the vacuum energy contributions of the neutrino quantum fields. Via renormalization group effects they induce a running of the cosmological constant with time which dynamically influences the evolution of the cosmic neutrino background. We demonstrate that the resulting reduction of the relic neutrino abundance allows to largely evade current cosmological neutrino mass bounds and discuss how the scenario might be probed by the help of future large scale structure surveys and Planck data.
Comments: 23 pages, 4 figures. References added, typos corrected. Matches version accepted by JCAP
Subjects: Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Phenomenology (hep-ph)
Report number: DESY 07-174
Cite as: arXiv:0711.0744 [astro-ph]
  (or arXiv:0711.0744v2 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0711.0744
Journal reference: JCAP 0804:006,2008
Related DOI: https://doi.org/10.1088/1475-7516/2008/04/006

Submission history

From: Lily Schrempp [view email]
[v1] Tue, 6 Nov 2007 17:30:39 UTC (60 KB)
[v2] Mon, 31 Mar 2008 10:08:25 UTC (66 KB)
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