Report/Journal Article

PUBDB-2015-04196

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Challenges for large-field inflation and moduli stabilization

Buchmuller, W.DESY* ; Dudas, E. ; Heurtier, L. ; Westphal, A.DESY* ; Wieck, C. (Corresponding author)DESY* ; Winkler, M. W.

2015
Springer Berlin

This record in other databases:        

Please use a persistent id in citations: doi:10.1007/JHEP04(2015)058

Report No.: arXiv:1501.05812

Abstract: We analyze the interplay between Kähler moduli stabilization and chaotic inflation in supergravity. While heavy moduli decouple from inflation in the supersymmetric limit, supersymmetry breaking generically introduces non-decoupling effects. These lead to inflation driven by a soft mass term, m φ 2  ∼ mm 3/2, where m is a supersymmetric mass parameter. This scenario needs no stabilizer field, but the stability of moduli during inflation imposes a large supersymmetry breaking scale, m 3/2 ≫ H, and a careful choice of initial conditions. This is illustrated in three prominent examples of moduli stabilization: KKLT stabilization, Kähler Uplifting, and the Large Volume Scenario. Remarkably, all models have a universal effective inflaton potential which is flattened compared to quadratic inflation. Hence, they share universal predictions for the CMB observables, in particular a lower bound on the tensor-to-scalar ratio, r ≳ 0.05.

Note: OA

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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. VH-GS-500 - PIER Helmholtz Graduate School (2015_IFV-VH-GS-500) (2015_IFV-VH-GS-500)
3. MASSTEV - Mass hierarchy and particle physics at the TeV scale (226371) (226371)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2015

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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/Internal Report Buchmuller, W.DESY* ; Dudas, E.DESY* ; Heurtier, L. ; Westphal, A.DESY* ; Wieck, C. (Corresponding Author)DESY* ; Winkler, M. W.
Challenges for Large-Field Inflation and Moduli Stabilization
Red Report 44 pp. (2015)2015     Files  Fulltext Fulltext by arXiv.org Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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