On the Smallness of the Cosmological Constant in SUGRA Models Inspired by Degenerate Vacua
On the Smallness of the Cosmological Constant in SUGRA Models Inspired by Degenerate Vacua
In the no-scale supergravity global symmetries protect local supersymmetry and a zero value for the cosmological constant. The breakdown of these symmetries, which ensures the vanishing of the vacuum energy density, results in a set of degenerate vacua with broken and unbroken supersymmetry leading to the natural realisation of the …