Contribution to a conference proceedings/Internal Report

PUBDB-2016-01353

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Evidence for an axion-like particle from blazar spectra?

Roncadelli, M. ; De Angelis, A. ; Galanti, G. ; Persic, M.

2010
Verlag Deutsches Elektronen-Synchrotron Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2010-03/roncadelli_marco

Report No.: DESY-PROC-2010-03; arXiv:1102.1177

Abstract: Observations with the Imaging Atmospheric Cherenkov Telescopes H.E.S.S., MAGIC, CANGAROO III and VERITAS have shown that the Universe is more transparent than expected to gamma rays above 100GeV. As a natural explanation, the DARMA scenario has previously been proposed, wherein photons can oscillate into a new very light axionlike particle and vice-versa in the presence of cosmic magnetic fields. Here we demonstrate that the most recent observations further support the DARMA scenario, thereby making the existence of a very light axion-like particle more likely.

Keyword(s): blazar: spectrum ; axion ; Cherenkov counter ; magnetic field ; gamma ray ; imaging ; VERITAS ; MAGIC ; WIMP ; WISP ; HESS

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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. Facility (machine) HERA

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Proceedings/Internal Report Baudis, L. (Editor) ; Schumann, M. (Editor)
Proceedings, 6th Patras Workshop on Axions, WIMPs and WISPs (AXION-WIMP 2010)
20106th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2010, ZürichZürich, Switzerland, 5 Jul 2010 - 9 Jul 20102010-07-052010-07-09 Hamburg : Verlag Deutsches Elektronen-Synchrotron (2010)2010     Files BibTeX | EndNote: XML, Text | RIS

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