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Jumping spectra and vanishing couplings in heterotic Line Bundle Standard Models
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Journal Article
Jumping spectra and vanishing couplings in heterotic Line Bundle Standard Models
2019
Overview
A
bstract
We study two aspects of the physics of heterotic Line Bundle Standard Models on smooth Calabi-Yau threefolds. First, we investigate to what degree modern moduli stabilization scenarios can affect the standard model spectrum in such compactifications. Specifically, we look at the case where some of the complex structure moduli are fixed by a choice of hidden sector bundle. In this context, we study the frequency with which the system tends to be forced to a point in moduli space where the cohomology groups determining the spectrum in the standard model sector jump in dimension. Second, we investigate to what degree couplings, that are permitted by all of the obvious symmetries of the theory, actually vanish due to certain topological constraints associated to their higher dimensional origins. We find that both effects are prevalent within the data set of heterotic Line Bundle Standard Models studied.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V,SpringerOpen
