Preprint/Report

PUBDB-2017-12473

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Primordial Black Holes for the LIGO Events in the Axion-like Curvaton Model

Ando, K. ; Inomata, K. ; Kawasaki, M. ; Mukaida, K. (Corresponding author)DESY* ; Yanagida, T. T.

2017

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Please use a persistent id in citations: doi:10.3204/PUBDB-2017-12473

Report No.: DESY-17-209; IPMU-17-0165; arXiv:1711.08956

Abstract: We revise primordial black hole (PBH) formation in the axion like curvaton model and investigate whether PBHs formed in this model can be the origin of the gravtitational wave (GW) signals detected by the Advanced LIGO. In this model, small-scale curvature perturbations with large amplitude are generated, which is essential for the PBH formation. On the other hand, large curvature perturbations also become a source of primordial GWs by their second-order effects. Severe constraints are imposed on such GWs by pulsar timing array (PTA) experiments. We also check the consistency of the model with this constraints. In this analysis, it is important to take account of the fact that large non-Gaussianity, which is generated easily in the curvaton model, suppresses the GWs.

Note: 24 pages, 7 figures

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2017

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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 Report/Journal Article Ando, K. ; Inomata, K. ; Kawasaki, M. ; Mukaida, K.DESY* ; Yanagida, T. T.
Primordial black holes for the LIGO events in the axionlike curvaton model
Physical review / D 97(12), 123512 (2018) [10.1103/PhysRevD.97.123512]2018     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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