Report/Journal Article

PUBDB-2016-01168

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Axion monodromy inflation with warped KK-modes

Hebecker, A. ; Moritz, J. ; Westphal, A.DESY* ; Witkowski, L. T. (Corresponding author)

2016
North-Holland Publ. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.physletb.2016.01.030  doi:10.3204/PUBDB-2016-01168

Report No.: DESY-15-244

Abstract: We present a particularly simple model of axion monodromy inflation: Our axion is the lowest-lying KK-mode of the RR-2-form-potential C$_2$ in the standard Klebanov–Strassler throat. One can think of this inflaton candidate as being defined by the integral of C$_2$ over the S$^2$ cycle of the throat. It obtains an exponentially small mass from the IR-region in which the S$^2$ shrinks to zero size. Crucially, the S$^2$ cycle has to be shared between two throats, such that the second locus where the S$^2$ shrinks is also in a warped region. Well-known problems like the potentially dangerous back-reaction of brane/antibrane pairs and explicit supersymmetry breaking are not present in our scenario. The inflaton back-reaction on the geometry turns out to be controlled by the string coupling g$_s$. We hope that our setting is simple enough for many critical consistency issues of large-field inflation in string theory to be addressed at a quantitative level.

Keyword(s): model: axion ; monodromy ; inflation ; warped ; back reaction ; inflaton ; string: coupling ; Klebanov-Strassler model ; throat

Note: 28 pages, 3 figures; v2: references added; v3: Corrected an underestimate of supergravity back-reaction in Eq. (36); results changed accordingly; added section 6 which develops the methodology for the 10d non-linear back-reaction; added references ; Erratum: Phys.Lett. B767 (2017) 493-493 ; 10.1016/j.physletb.2017.02.029;

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)
2. STRINGFLATION - Inflation in String Theory - Connecting Quantum Gravity with Observations (647995) (647995)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:
; ; ; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Journal Article Hebecker, A. ; Moritz, J. ; Westphal, A.DESY* ; Witkowski, L. T. (Corresponding author)
Corrigendum to “Axion monodromy inflation with warped KK-modes” [Phys. Lett. B 754 (2016) 328–334]
Physics letters / B B 767, 493 - (2017) [10.1016/j.physletb.2017.02.029]2017     Files BibTeX | EndNote: XML, Text | RIS

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint/Report Hebecker, A. ; Moritz, J. ; Westphal, A.DESY* ; Witkowski, L. T. (Corresponding author)
Axion Monodromy Inflation with Warped KK-Modes
Red Report (2015) [10.3204/PUBDB-2015-05911]2015     Files  Fulltext Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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