Modification of Decay Constants of Superstring Axions: Effects of Flux Compactification and Axion Mixing
arXiv:hep-th/0605256 · doi:10.1016/j.physletb.2006.06.033
Abstract
We study possibilities for lowering the decay constants of superstring axions. In the heterotic Calabi-Yau compactification, a localized model-dependent axion can appear at a nearly collapsing 2-cycle. The effect of flux can be used for generating warp factor suppression of the axion decay constant. We also point out that the hidden sector instanton potential much higher than the QCD instanton potential picks up the larger effective axion decay constant as that of the QCD axion. We show that this can be converted by introducing many hidden-sector quarks so that the decay constant of the QCD axion turns out to be much smaller than the string scale.
arXiv comment6 pages with 3 figures, revtex; figure added,section of axion mixing modified
References in corpus (12)
- A Large Mass Hierarchy from a Small Extra Dimension
- Hierarchies from Fluxes in String Compactifications
- Supergravity and a Confining Gauge Theory: Duality Cascades and SB-Resolution of Naked Singularities
- Completing Natural Inflation
- Compactifications of Heterotic Theory on Non-Kahler Complex Manifolds: I
- String or M theory axion as a quintessence
- Strings at the Intermediate Scale, or is the Fermi Scale Dual to the Planck Scale?
- Compactifications of Heterotic Strings on Non-Kahler Complex Manifolds: II
- A Quintessential Axion
- Axions and the Strong CP Problem in M-theory
- Axion and Almost Massless Quark as Ingredients of Quintessence
- Model-dependent Axion as Quintessence with Almost Massless Hidden Sector Quarks
Cited by in corpus (21)
- Dark matter production in the early Universe: beyond the thermal WIMP paradigm
- The Quest for an Intermediate-Scale Accidental Axion and Further ALPs
- String compactification, QCD axion and axion-photon-photon coupling
- String theoretic QCD axion with stabilized saxion and the pattern of supersymmetry breaking
- Warped Axions
- SU(5)_{flip} x SU(5)' from Z_{12-I}
- Abelian discrete symmetries Z_{N} and Z_{nR} from string orbifolds
- String theoretic QCD axions in the light of PLANCK and BICEP2
- Axionic dark energy and a composite QCD axion
- Quark and lepton mixing angles with a dodeca-symmetry
- On The Warped Heterotic Axion
- Seeing the Invisible Axion in the Sparticle Spectrum
- Natural Higgs-flavor-democracy solution of the mu problem of supersymmetry and the QCD axion
- On Supersymmetric Effective Theories of Axion
- Supersizing axions with small size instantons
- Aspects of Axion Phenomenology in a slice of AdS_5
- Gaugino Condensation with a Doubly Suppressed Gravitino Mass
- High scale inflation, model-independent string axion, and QCD axion with domain wall number one
- Z_{12-I} Orbifold Compactification toward SUSY Standard Model
- A QCD R-Axion
- PhD Thesis: String theory in the early universe