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Constraints on the neutrino mass and the primordial magnetic field from the matter density fluctuation parameter σ₈

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arxiv 1005.1638 v1 pith:K4ZWXVUL submitted 2010-05-10 astro-ph.CO gr-qchep-ph

Constraints on the neutrino mass and the primordial magnetic field from the matter density fluctuation parameter σ₈

classification astro-ph.CO gr-qchep-ph
keywords fieldmagneticmassmatterneutrinoprimordialconstraintsdensity
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We have made an analysis of limits on the neutrino mass based upon the formation of large-scale structure in the presence of a primordial magnetic field. We find that a new upper bound on the neutrino mass is possible based upon fits to the cosmic microwave background and matter power spectrum when the existing independent constraints on the matter density fluctuation parameter $\sigma_8$ and the primordial magnetic field are taken into account.

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