The Rethermalizing Bose-Einstein Condensate ofDark Matter Axions

Banik, Nilanjan; Christopherson, Adam; Todarello, Elisa Maria; Sikivie, Pierre

Contribution to a conference proceedings/Contribution to a book

PUBDB-2017-00147

The Rethermalizing Bose-Einstein Condensate ofDark Matter Axions

Banik, N. ; Christopherson, A. ; Sikivie, P. ; Todarello, E. M.

2015
Verlag Deutsches Elektronen-Synchrotron Hamburg
ISBN: 978-3-935702-43-0

Banik, Nilanjan "The Rethermalizing Bose-Einstein Condensate ofDark Matter Axions" in Proceedings, 11th Patras Workshop on Axions, WIMPs and WISPs (Axion-WIMP 2015) / Irastorza, Igor G., Redondo, Javier, Carmona, José Manuel, Cebrian, Susana, Dafni, Theopisti, Iguaz, Francisco J., Luzon, Gloria (eds.), Verlag Deutsches Elektronen-Synchrotron : 2015 ; AXION-WIMP 2015 : 11th Patras Workshop on Axions, WIMPs and WISPs, 2015-06-22 - 2015-06-26, Zaragoza
11th Patras Workshop on Axions, WIMPs and WISPs, AXION-WIMP 2015, Zaragoza, Spain, 22 Jun 2015 - 26 Jun 2015 Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-PROC 134-139 (2015) [10.3204/DESY-PROC-2015-02/sikivie_pierre]

This record in other databases:

Please use a persistent id in citations: doi:10.3204/DESY-PROC-2015-02/sikivie_pierre

Abstract: The axions produced during the QCD phase transition by vacuum realignment, string decay and domain wall decay thermalize as a result of their gravitational self-interactions when the photon temperature is approximately 500 eV. They then form a Bose-Einstein condensate (BEC). Because the axion BEC rethermalizes on time scales shorter than the age of the universe, it has properties that distinguish it from other forms of cold dark matter. The observational evidence for caustic rings of dark matter in galactic halos is explained if the dark matter is axions, at least in part, but not if the dark matter is entirely WIMPs or sterile neutrinos.

Database coverage:
Creative Commons Attribution CC BY 4.0