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PUBDB-2018-02820

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Axion-like Particles from String Compactifications

Cicoli, M. (Corresponding author)

2013
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 978-3-935702-83-6

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2013-04/cicoli_michele

Report No.: DESY-PROC-2013-04

Abstract: We review how axion-like particles (ALPs) naturally emerge in the low-energy effective field theory of string compactifications. We focus on the study of their mass spectrum and couplings, stressing that they depend on the mechanism used to fix the moduli. We present concrete examples where either open or closed string modes behave as QCD axions which do not overproduce cold dark matter. Relativistic ALPs can also be produced by the decay of the lightest modulus which drives reheating. These ALPs contribute to dark radiation and could be detected via axion-photon conversion in astrophysical magnetic fields.

Keyword(s): Hypothetisches Teilchen

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Contributing Institute(s):

1. Bibliothek und Dokumentation (L)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Report Oberlack, U. (Editor) ; Sissol, P. (Editor)
Axions WIMPs and WISPs: Proceedings, 9th Patras workshop, PATRAS 2013, Mainz, Germany, June 23-28, 2013
20139th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2013, MainzMainz, Germany, 24 Jun 2013 - 28 Jun 20132013-06-242013-06-28 Hamburg : DESY 292 p (2013) [10.3204/DESY-PROC-2013-04]2013     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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