Searching for light in the darkness: Bounds on ALP dark matter with the optical MUSE-faint survey

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Regis, M (Author) Other; Taoso, M (Author) Other; Vaz, D (Author) Other; J. Brinchmann (Author) FCUP; Zoutendijk, SL (Author) Other; Bouche, NF (Author) Other; Steinmetz, M (Author) Other

Journal

Title: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Vol. 814

ISSN: 0370-2693

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 29 Citations

Scopus - 32 Citations

Other information

Authenticus ID: P-00T-CG7

DOI: 10.1016/j.physletb.2021.136075

Abstract (EN): We use MUSE spectroscopic observations of the dwarf spheroidal galaxy Leo T between 470 and 935 nm to search for radiative decays of axion like particles (ALPs). Under the assumption that ALPs constitute the dark matter component of the Leo T halo, we derive bounds on the effective ALP-two-photon coupling. We improve existing limits by more than one order of magnitude in the ALP mass range 2.7-5.3 eV. (C) 2021 The Author(s). Published by Elsevier B.V.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5