A novel class of string models with Scherk–Schwarz supersymmetry breaking
نویسندگان
چکیده
A new type of four-dimensional string vacua with Scherk–Schwarz supersymmetry breaking is considered. The construction involves ZN × ZM freely acting orbifolds, defined in terms of rotations and translations in the internal space. Tachyons are either absent or limited to a given region of the tree-level moduli space. Particular attention is devoted to an interesting Z3 × Z3 heterotic example.
منابع مشابه
On string models with Scherk–Schwarz supersymmetry breaking
We construct a general class of chiral four-dimensional string models with Scherk–Schwarz supersymmetry breaking, involving freely acting orbifolds. The basic ingredient is to combine an ordinary supersymmetry-preserving ZN projection with a supersymmetry-breaking projection ZM acting freely on a subspace of the internal manifold. A crucial condition is that any generator of the full orbifold g...
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