(MS)SM-like models on smooth Calabi-Yau manifolds from all three heterotic string theories

Nibbelink, Stefan Groot; Ruehle, Fabian; Loukas, Orestis

doi:10.1002/prop.201500041

Journal Article/Internal Report

PUBDB-2015-03700

(MS)SM-like models on smooth Calabi-Yau manifolds from all three heterotic string theories

Nibbelink, S. G. ; Loukas, O. ; Ruehle, F.DESY*

2015
Wiley-VCH Berlin

Fortschritte der Physik <Weinheim> 63(9-10), 609 - 632 (2015) [10.1002/prop.201500041]

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Please use a persistent id in citations: doi:10.1002/prop.201500041

Report No.: DESY-15-126; LMU-ASC-47/15; arXiv:1507.07559

Abstract: We perform model searches on smooth Calabi-Yau compactifications for both the supersymmetric E8 x E8 and SO(32) as well as for the non-supersymmetric SO(16) x SO(16) heterotic strings simultaneously. We consider line bundle backgrounds on both favorable CICYs with relatively small h11 and the Schoen manifold. Using Gram matrices we systematically analyze the combined consequences of the Bianchi identities and the tree-level Donaldson-Uhlenbeck-Yau equations inside the Ka<hler cone. In order to evaluate the model building potential of the three heterotic theories on the various geometries, we perform computer-aided scans. We have generated a large number of GUT-like models (up to over a few hundred thousand on the various geometries for the three heterotic theories) which become (MS)SM-like upon using a freely acting Wilson line. For all three heterotic theories we present tables and figures summarizing the potentially phenomenologically interesting models which were obtained during our model scans.

Keyword(s): string model: heterotic ; compactification: Calabi-Yau ; tree approximation ; Bianchi identity ; Wilson loop ; Donaldson theory ; grand unified theory ; E(8) x E(8) ; SO(32)