Limit on the Neutrino Mass from the WMAP Three Year Data

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dc.creatorFukugita, Masataka
dc.creatorIchikawa, Kazuhide
dc.creatorKawasaki, Masahiro
dc.creatorLahav, Ofer
dc.date2006-05-15
dc.date.accessioned2026-07-07T10:23:06Z
dc.date.available2026-07-07T10:23:06Z
dc.descriptionWe derive an upper limit on the neutrino mass from the WMAP three-year data alone by employing a deterministic minimisation method based on a grid search in multi-parameter space. Assuming the flat LCDM model with power-law adiabatic perturbations, we find the sum of m_nu < 2.0 eV in agreement with the result of the WMAP team. This result, the limit being nearly the same as that from the WMAP first-year data, means that the fundamental limit on the neutrino mass obtainable from the cosmic microwave background alone is already nearly met, as anticipated from the previous analysis. We also clarify the role of the polarisation data in deriving the limit on the neutrino mass.
dc.description6 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0605362
dc.identifierhttp://arxiv.org/abs/astro-ph/0605362
dc.identifierPhys.Rev.D74:027302,2006
dc.identifierdoi:10.1103/PhysRevD.74.027302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175707
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLimit on the Neutrino Mass from the WMAP Three Year Data
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