Neutrino Flight Times in Cosmology

Details Neutrino Flight Times in Cosmology Neutrino Flight Times in Cosmology

1999-11-10

arxiv.org/abs/astro-ph/9911167v1

Phys.Lett. B473 (2000) 61-64

Astronomy and Astrophysics

Astrophysics

Three pages, no figures

Scientific paper

10.1016/S0370-2693(99)01466-5

If neutrinos have a small but non-zero mass, time-of-flight effects for neutrino bursts from distant sources can yield information on the large-scale geometry of the universe, the effects being proportional to the integral over time of the cosmological expansion parameter. In principle absolute physical determinations of the Hubble constant and the acceleration parameter are possible. Practical realization of these possibilities would depend on neutrino masses being in a favorable range and the future development of very large detectors.

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