Indirect detection of Kaluza-Klein dark matter from latticized universal dimensions
2006 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, Vol. 2006, no 06, 014- p.Article in journal (Refereed) Published
We consider Kaluza-Klein dark matter from latticized universal dimensions. We investigate two different lattice models, where the models differ in the choice of boundary conditions. The models reproduce relevant features of the continuum model for Kaluza-Klein dark matter. For the model with simple boundary conditions, this is the case even for a model with only a few lattice sites. We study the effects of the latticization on the differential flux of positrons from annihilation of Kaluza-Klein dark matter in the galactic halo. We find that for different choices of the compactification radius, the differential positron flux rapidly converges to the continuum model results as a function of the number of lattice sites. In addition, we consider the prospects for upcoming space-based experiments such as PAMELA and AMS-02 to probe the latticization effect.
Place, publisher, year, edition, pages
IOP Publishing / SISSA , 2006. Vol. 2006, no 06, 014- p.
Dark matter; Extra dimensions
IdentifiersURN: urn:nbn:se:kth:diva-7439DOI: 10.1088/1475-7516/2006/06/014ISI: 000238978600014ScopusID: 2-s2.0-37649029696OAI: oai:DiVA.org:kth-7439DiVA: diva2:12466
FunderSwedish Research Council, 621-2001-1611Swedish Research Council, 621-2002-3577
QC 201007162011-06-212007-09-032011-06-21Bibliographically approved