The C(0)/CO ratio problem - A possible new precision test of the decaying neutrino theory

Details The C(0)/CO ratio problem - A possible new precision test of the decaying neutrino theory The C(0)/CO ratio problem - A possible new precision test of the decaying neutrino theory

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...415l..31s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 415, no. 1, p. L31-L34.

Astronomy and Astrophysics

Astrophysics

6

Carbon, Carbon Monoxide, Elementary Particles, Interstellar Matter, Neutrinos, Particle Theory, Gas Dissociation, Molecular Clouds

Scientific paper

We reconsider Tarafdar's (1991) suggestion that decay photons from neutrinos in molecular clouds could explain the anomalously large C(0)/CO abundance ratio found in the clouds. In particular, we follow our recent proposal that the decay photons can ionize nitrogen, so that their energy E(gamma) must exceed 14.53 eV. Tarafdar found that the clouds would be too opaque unless the energy of the decay photons lies below the photodissociation continuum of H2, which requires that E(gamma) is less than 14.68 eV. This upper limit is similar to, but firmer than, a limit previously derived from consideration of the intergalactic ionizing flux of decay photons. The domain of validity of the neutrino decay theory would then be nonzero but extremely small, with E(gamma) = 14.605 +/- 0.075 eV. We also find for the mass of the decaying neutrinos is 29.21 +/- 0.15 eV. This mass, when combined with estimates of the age of the universe, implies that Omega is approximately equal to 1. If Omega = 1 exactly, then our theory could be valid only if the Hubble constant is 56.3 +/- 0.5 km/s Mpc.

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