Article (Scientific journals)
Dark atoms with nuclear shell: a status review
Cudell, Jean-René; Khlopov, Maxim
2015In International Journal of Modern Physics. D, Gravitation, Astrophysics and Cosmology, D24 (13), p. 1545007
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Keywords :
Self-interacting dark matter; Direct detection experiments; radiative capture
Abstract :
[en] Among dark atom scenarios, the simplest and most predictive one is that of O-helium (OHe) dark atoms, in which a lepton-like doubly charged particle O$^{--}$ is bound to a primordial helium nucleus, and is the main constituent of dark matter. The OHe cosmology has several successes: it leads to a Warmer-than-Cold-dark-matter scenario for Large-Scale-Structure formation, it can provide an explanation for the excess in positron annihilation line in the galactic bulge and it may explain the results of direct dark-matter searches. This model liberates the physics of dark atoms from many unknown features of new physics, but it is still not free from astrophysical uncertainties. It also demands a deeper understanding of the details of known nuclear and atomic physics, which are still somewhat unclear in the case of nuclear interacting ``atomic'' shells. These potential problems of the O-helium scenario are also discussed.
Research center :
STAR Institute
Disciplines :
Physics
Author, co-author :
Cudell, Jean-René  ;  Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Inter. fondamentales en physique et astrophysique (IFPA)
Khlopov, Maxim;  Université Paris Diderot - Paris 7 > APC Laboratory
Language :
English
Title :
Dark atoms with nuclear shell: a status review
Publication date :
2015
Journal title :
International Journal of Modern Physics. D, Gravitation, Astrophysics and Cosmology
ISSN :
0218-2718
eISSN :
1793-6594
Publisher :
World Scientific Publishing Company, Singapore, Singapore
Special issue title :
Composite Dark Matter
Volume :
D24
Issue :
13
Pages :
1545007
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 06 July 2016

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