Light Element Abundances from Big Bang Nucleosynthesis
Kirkman, Tytler et al. 2003, astro-ph/0302006
Ž
W
b
h
2
=
0.0214±0.0020
Ž
W
b
= 0.040 to 0.048
if
h
= 0.70
Gunn-Peterson constraint on mass of dominant DM particle