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arXiv · 2206.09732

Three-Generation Super No-Scale Models in Heterotic Superstrings

Ioannis Florakis·John Rizos·Konstantinos Violaris-Gountonis
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Abstract

We derive the conditions for the one-loop contribution to the cosmological constant to be exponentially suppressed in a class of heterotic string compactifications with three generations of chiral matter, where supersymmetry is spontaneously broken à la Scherk-Schwarz. Using techniques of partial unfolding based on the Hecke congruence subgroup $Γ_0(2)$ of the modular group to extract the leading asymptotics, we show that the super no-scale condition $n_B=n_F$ between the degeneracies of massless bosons $n_B$ and fermions $n_F$ in the full string spectrum is necessary but not sufficient, and needs to be supplemented by additional conditions which we identify. We use these results to construct three-generation Pati-Salam models with interesting phenomenological characteristics.

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Ioannis Florakis, John Rizos, Konstantinos Violaris-Gountonis. 2022-06-20. Three-Generation Super No-Scale Models in Heterotic Superstrings. https://doi.org/10.1016/j.physletb.2022.137311

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