Two Hundred Heterotic Standard Models on Smooth Calabi-Yau Threefolds

By L. Anderson, James Richard Andrew Gray, André Lukas, Eran Palti. 2011

221 citations recorded by the source corpus.

We construct heterotic standard models by compactifying on smooth Calabi-Yau three-folds in the presence of purely Abelian internal gauge fields. A systematic search over complete intersection Calabi-Yau manifolds with less than six Kahler parameters leads to over 200 such models which we present. Each of these models has precisely the matter spectrum of the MSSM, at least one pair of Higgs doublets, the standard model gauge group and no exotics. For about 100 of these models there are, naively, four additional U(1) symmetries, however these are Green-Schwarz anomalous and, hence, massive. In the remaining cases, three U(1) symmetries are anomalous while the fourth, massless one can be spontaneously broken by singlet vacuum expectation values. The presence of additional global U(1) symmetries, together with the possibility of switching on singlet vacuum expectation values, leads to a rich phenomenology which is illustrated for a particular example. Our database of standard models, which can be further enlarged by simply extending the computer-based search, allows for a detailed and systematic phenomenological analysis of string standard models, covering issues such as the structure of Yukawa couplings, R-parity violation, proton stability and neutrino masses.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/21775d680d9980d89021b5ad95106d3ed18c8b17

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In Nuclear and High Energy Physics

1. Eran Palti
2. André Lukas
3. L. Anderson
4. James Richard Andrew Gray
5. Anshuman Maharana

Citations in the corpus

• MODELS OF PARTICLE PHYSICS FROM TYPE IIB STRING THEORY AND F-THEORY: A REVIEW (2012, unknown): “ajIt should be noted that Heterotic line bundle models are closely related to the approach adopted in F-theory of using Abelian fluxes and these do exhibit a rich phenomenological structure, especially with respect to additional U(1) symmetries [206,207].”
• UltraViolet freeze-in (2014, methodology): “[11–13], as supported by scans of vacua of Heterotic string theory [14].”
• Heterotic line bundle standard models (2012, methodology): “[35] which led to 202 phenomenologically promising GUT models, only produced four models with non-trivial equivariant building blocks.”