Preprint

PUBDB-2021-03949

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Thraxions: Towards Full String Models

Carta, F. ; Mininno, A.Extern* ; Righi, N. (Corresponding author)DESY* ; Westphal, A.DESY*

2021

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Please use a persistent id in citations: doi:10.3204/PUBDB-2021-03949

Report No.: DESY-21-152; IFT-UAM/CSIC-21-106; ZMP-HH/21-18; arXiv:2110.02963

Abstract: We elucidate various aspects of the physics of thraxions, ultra-light axions arising at Klebanov-Strassler multi-throats in the compactification space of IIB superstring theory. We study the combined stabilization of Kahler moduli and thraxions, showing that under reasonable assumptions, one can solve the combined problem both in a KKLT and a LVS setup. We find that for non-minimal multi-throats, the thraxion mass squared is three-times suppressed by the throat warp factor. However, the minimal case of a double-throat can preserve the six-times suppression as originally found. We also discuss the backreaction of a non-vanishing thraxion vacuum expectation value on the geometry, showing that it induces a breaking of the imaginary self-duality condition for 3-form fluxes. This in turn breaks the Calabi-Yau structure to a complex manifold one. Finally, we extensively search for global models which can accommodate the presence of multiple thraxions within the database of Complete Intersection Calabi-Yau orientifolds. We find that each multi-throat system holds a single thraxion. We further point out difficulties in constructing a full-fledged global model, due to the generic presence of frozen-conifold singularities in a Calabi-Yau orientifold.

Keyword(s): orientifold: Calabi-Yau ; moduli: Kaehler ; conifold ; axion ; moduli: stability ; throat ; string model: Type IIB ; Klebanov-Strassler model ; torsion

Note: 41 pages + 2 appendices

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. STRINGFLATION - Inflation in String Theory - Connecting Quantum Gravity with Observations (647995) (647995)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2021

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Carta, F.DESY* ; Mininno, A. (Corresponding author)Extern* ; Righi, N.DESY* ; Westphal, A.DESY*
Thraxions: towards full string models
Journal of high energy physics 01(1), 082 (2022) [10.1007/JHEP01(2022)082]2022     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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