Article (Scientific journals)
Composite dark matter and direct-search experiments
Wallemacq, Quentin
2015In International Journal of Modern Physics. D, Gravitation, Astrophysics and Cosmology, 24
Peer Reviewed verified by ORBi
 

Files


Full Text
IJMPD.pdf
Author preprint (2.77 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
thermalization; electron recoil; dark atoms; milli-charges; radiative capture; dark U(1)
Abstract :
[en] The results of the direct searches for dark matter are reinterpreted in the framework of composite dark matter, i.e. dark matter particles that form neutral bound states, generically called “dark atoms”. Two different scenarios are presented: milli-interacting dark matter and dark anti-atoms. In both of them, dark matter interacts sufficiently strongly with terrestrial matter to be stopped in it before reaching underground detec- tors, which are typically located at a depth of 1 km. As they drift towards the center of the earth because of gravity, these thermal dark atoms are radiatively captured by the atoms of the active medium of underground detectors, which causes the emission of photons that produce the signals through their interac- tions with the electrons of the medium. This provides a way of reinterpreting the results in terms of electron recoils instead of nuclear recoils. The two models involve milli-charges and are able to reconcile the most contradictory experiments. We determine, for each model, the regions in the parameter space that reproduce the experiments with positive results in con- sistency with the constraints of the experiments with negative results.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Wallemacq, Quentin ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Language :
English
Title :
Composite dark matter and direct-search experiments
Publication date :
06 November 2015
Journal title :
International Journal of Modern Physics. D, Gravitation, Astrophysics and Cosmology
ISSN :
0218-2718
eISSN :
1793-6594
Publisher :
World Scientific Publishing Company
Volume :
24
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Commentary :
Part of my PhD thesis (http://hdl.handle.net/2268/186464) which has been published in IJMPD.
Available on ORBi :
since 18 December 2015

Statistics


Number of views
49 (9 by ULiège)
Number of downloads
125 (1 by ULiège)

Scopus citations®
 
3
Scopus citations®
without self-citations
3
OpenCitations
 
3

Bibliography


Similar publications



Contact ORBi