2–6 Dec 2014
King's College London, Strand Campus
Europe/London timezone

Non-supersymmetric heterotic model building

5 Dec 2014, 16:30
30m
S7.06 7th floor Strand Bldg.

S7.06 7th floor Strand Bldg.

Speaker

Dr Stefan Groot Nibbelink (urn:Google)

Description

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.

Primary author

Dr Stefan Groot Nibbelink (urn:Google)

Presentation materials