Relic Abundance of Neutralinos in Heterotic String Theory: Weak Coupling vs. Strong Coupling

Y. Kawamura, H. P. Nilles, M. Olechowski +1

The relic abundance of stable neutralinos is investigated in $E_8\times E_8^{\prime }$ heterotic string theory when supersymmetry is spontaneously broken by hidden-sector gaugino condensat…