Anthropic predictions for neutrino masses
Fig 2.:
Anthropic constraints on the sum of the three neutrino masses
Please click here to download
our paper. Click here if
you are interested in other research of mine.
Authors:
Max Tegmark,
Alexander Vilenkin
&
Levon Pogosian
Abstract:
It is argued that small values of the neutrino masses may be due to
anthropic selection effects. If this is the case, then
the combined mass of the three neutrino
species is expected to be ~1eV, neutrinos causing
a non-negligible suppression of galaxy formation.
Reference info:
astro-ph/0304536, PRD, in press
Links:
The taboo of the ``A-word'' seem to be weakening in the
physics community, as you'll see if you click
here
to search for anthropic on arxiv.org. My last search gave as many as 128 hits, mostly recent work, providing a good
entry point into the literature.
Our paper above focuses merely on neutrino mass. I've previously written papers about anthropic constraints
on the
CMB fluctuation amplitude
and the
dimensionality of spacetime.
I reviewed the anthropic contraints (that I knew of at the time) on all physical and cosmological parameters in
section 4 of
this paper, and gave a brief but more accessible account
in my Scientific American article about parallel universes.
Return to my home page
This page was last modified May 8, 2005.
tegmark@mit.edu