Non-supersymmetric heterotic model building

Blaszczyk, Michael; Groot Nibbelink, Stefan; Loukas, Orestis und Ramos-Sanchez, Saul (2014): Non-supersymmetric heterotic model building. In: Journal of High Energy Physics, Nr. 10, 119

Abstract

We investigate orbifold and smooth Calabi-Yau compactifications of the non-supersymmetric heterotic SO(16)×SO(16) string. We focus on such Calabi-Yau backgrounds in order to recycle commonly employed techniques, like index theorems and cohomology theory, to determine both the fermionic and bosonic 4D spectra. We argue that the N=0 theory never leads to tachyons on smooth Calabi-Yaus in the large volume approximation. As twisted tachyons may arise on certain singular orbifolds, we conjecture that such tachyonic states are lifted in the full blow-up. We perform model searches on selected orbifold geometries. In particular, we construct an explicit example of a Standard Model-like theory with three generations and a single Higgs field.

• Dokumententyp: Zeitschriftenartikel
• Publikationsform: Publisher's Version
• Keywords: Strings; branes phenomenology
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 1029-8479
• Allianz-/Nationallizenz: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
• Bemerkung: SCOAP3-Publikation. - Weitere Autoren siehe PDF-Volltext. - ArXiv ePrint: 1407.​6362
• Sprache: Englisch