Dark Matter in a twisted bottle
Abstract
The real projective plane is a compact, nonorientable orbifold of Euler characteristic 1 without boundaries, which can be described as a twisted Klein bottle. We shortly review the motivations for choosing such a geometry among all possible twodimensional orbifolds, while the main part of the study will be devoted to dark matter study and limits in Universal Extra Dimensional (UED) models based on this peculiar geometry. In the following we consider such a UED construction based on the direct product of the real projective plane with the standard fourdimensional Minkowski spacetime and discuss its relevance as a model of a weakly interacting Dark Matter candidate. One important difference with other typical UED models is the origin of the symmetry leading to the stability of the dark matter particle. This symmetry in our case is a remnant of the sixdimensional Minkowski spacetime symmetry partially broken by the compactification. Another important difference is the very small mass splitting between the particles of a given KaluzaKlein tier, which gives a very important role to coannihilation effects. Finally the role of higher KaluzaKlein tiers is also important and is discussed together with a detailed numerical description of the influence of the resonances.
 Publication:

Journal of High Energy Physics
 Pub Date:
 January 2013
 DOI:
 10.1007/JHEP01(2013)147
 arXiv:
 arXiv:1210.0384
 Bibcode:
 2013JHEP...01..147A
 Keywords:

 Phenomenology of Field Theories in Higher Dimensions;
 High Energy Physics  Phenomenology;
 Astrophysics  High Energy Astrophysical Phenomena
 EPrint:
 43 pages, 27 figures, 11 tables