Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/15984
Title: | Scalar field dark matter and the Higgs field |
Author: | Bertolami, Orfeu Cosme, Catarina Rosa, João G. |
Keywords: | Dark matter Scalar field Higgs field Non-renormalizable operators Extra dimensions |
Issue Date: | 10-Aug-2016 |
Publisher: | Elsevier |
Abstract: | We discuss the possibility that dark matter corresponds to an oscillating scalar field coupled to the Higgs boson. We argue that the initial field amplitude should generically be of the order of the Hubble parameter during inflation, as a result of its quasi-de Sitter fluctuations. This implies that such a field may account for the present dark matter abundance for masses in the range 10^-6 - 10^-4 eV, if the tensor-to-scalar ratio is within the range of planned CMB experiments. We show that such mass values can naturally be obtained through either Planck-suppressed non-renormalizable interactions with the Higgs boson or, alternatively, through renormalizable interactions within the Randall–Sundrum scenario, where the dark matter scalar resides in the bulk of the warped extra-dimension and the Higgs is confined to the infrared brane. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/15984 |
DOI: | 10.1016/j.physletb.2016.05.047 |
ISSN: | 0370-2693 |
Appears in Collections: | CIDMA - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
ScalarDMHiggs.pdf | Main article | 224.58 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.