Massless Spectra and Gauge Couplings at One-Loop on Non-Factorisable Toroidal Orientifolds

Mikel Berasaluce-González, Gabriele Honecker, Alexander Seifert

So-called `non-factorisable' toroidal orbifolds can be rewritten in a factorised form as a product of three two-tori by imposing an additional shift symmetry. This finding of Blasz…