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arXiv · 0803.3828

On The Warped Heterotic Axion

Keshav Dasgupta·Hassan Firouzjahi·Rhiannon Gwyn
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Abstract

We study the axion in a warped heterotic background. It is shown that the axion decay constant, f_a, is sensitive to the warped mass scale of the throat. As an explicit model, we construct a novel AdS-like geometry in heterotic string theory. We demonstrate that in this background f_a is given by the mass scale of the longest throat in the compactification. The question of obtaining f_a within the required bound 10^9--10^12 GeV is reduced to the construction of a throat inside the heterotic string theory compactification with warped mass scale in the above range. This provides a natural mechanism for realising the axion in heterotic string theory.

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Keshav Dasgupta, Hassan Firouzjahi, Rhiannon Gwyn. 2008-06-11. On The Warped Heterotic Axion. https://doi.org/10.1088/1126-6708%2F2008%2F06%2F056

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