Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/112544
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | A halo-independent lower bound on the dark matter capture rate in the Sun from a direct detection signal |
Author: | Blennow, M. Herrero-Garcia, J. Schwetz, T. |
Citation: | Journal of Cosmology and Astroparticle Physics, 2015; 2015(5):036-1-036-24 |
Publisher: | IOP Publishing |
Issue Date: | 2015 |
ISSN: | 1475-7516 1475-7516 |
Statement of Responsibility: | Mattias Blennowa, Juan Herrero-Garciaa and Thomas Schwetz |
Abstract: | We show that a positive signal in a dark matter (DM) direct detection experiment can be used to place a lower bound on the DM capture rate in the Sun, independent of the DM halo. For a given particle physics model and DM mass we obtain a lower bound on the capture rate independent of the local DM density, velocity distribution, galactic escape velocity, as well as the scattering cross section. We illustrate this lower bound on the capture rate by assuming that upcoming direct detection experiments will soon obtain a significant signal. When comparing the lower bound on the capture rate with limits on the high-energy neutrino flux from the Sun from neutrino telescopes, we can place upper limits on the branching fraction of DM annihilation channels leading to neutrinos. With current data from IceCube and Super-Kamiokande non-trivial limits can be obtained for spin-dependent interactions and direct annihilations into neutrinos. In some cases also annihilations into ττ or b b start getting constrained. For spin-independent interactions current constraints are weak, but they may become interesting for data from future neutrino telescopes. |
Rights: | Article funded by SCOAP. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
DOI: | 10.1088/1475-7516/2015/05/036 |
Published version: | http://dx.doi.org/10.1088/1475-7516/2015/05/036 |
Appears in Collections: | Aurora harvest 3 Physics publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
hdl_112544.pdf | Published Version | 2.03 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.