Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-02-22
JHEP 0605:078,2006
Physics
High Energy Physics
High Energy Physics - Theory
36 pages; v2: extended discussion of cosmological bound on f_a, references added, version accepted by journal; v3. factor of 2
Scientific paper
10.1088/1126-6708/2006/05/078
We investigate the conditions for a QCD axion to coexist with stabilised moduli in string compactifications. We show how the simplest approaches to moduli stabilisation give unacceptably large masses to the axions. We observe that solving the F-term equations is insufficient for realistic moduli stabilisation and give a no-go theorem on supersymmetric moduli stabilisation with unfixed axions applicable to all string compactifications and relevant to much current work. We demonstrate how nonsupersymmetric moduli stabilisation with unfixed axions can be realised. We finally outline how to stabilise the moduli such that f_a is within the allowed window 10^9 GeV < f_a < 10^{12} GeV, with f_a ~ \sqrt{M_{SUSY} M_P}.
No associations
LandOfFree
The QCD Axion and Moduli Stabilisation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The QCD Axion and Moduli Stabilisation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The QCD Axion and Moduli Stabilisation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-89072