Preprint/Report

PUBDB-2018-03684

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Relaxion Dark Matter

Fonseca, N. (Corresponding author)DESY* ; Morgante, E.DESY*

2018

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Please use a persistent id in citations: doi:10.3204/PUBDB-2018-03684

Report No.: DESY-18-161; arXiv:1809.04534

Abstract: We highlight a new connection between the Standard Model hierarchy problem and the dark matter sector. The key piece is the relaxion field, which besides scanning the Higgs mass and setting the electroweak scale, also constitutes the observed dark matter abundance of the universe. The relaxation mechanism is realized during inflation, and the necessary friction is provided by particle production, with no need for a large number of e-folds and no new physics at the TeV scale. Using this framework we show that the relaxion is a phenomenologically viable dark matter candidate in the keV mass range.

Keyword(s): scale: electroweak interaction ; Higgs particle: mass ; scale: TeV ; dark matter ; new physics ; hierarchy ; inflation

Note: 5 pages + appendix

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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 2018

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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 Fonseca, N.DESY* ; Morgante, E.DESY*
Relaxion Dark Matter
Physical review / D 100(5), 055010 (2019) [10.1103/PhysRevD.100.055010]2019     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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