Asymmetric Velocity Distributions from Halo Density Profiles in the Eddington Approach
Author
Source
Advances in High Energy Physics
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-13
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We show how to obtain the energy distribution f(E) in our vicinity starting from WIMP density profiles in a self-consistent way by employing the Eddington approach and adding reasonable angular momentum dependent terms in the expression of the energy.
We then show how we can obtain the velocity dispersions and the asymmetry parameter β in terms of the parameters describing the angular momentum dependence.
From this expression, for f(E), we proceed to construct an axially symmetric WIMP a velocity distribution, which, for a gravitationally bound system, automatically has a velocity upper bound and is characterized by the same asymmetriy β.
This approach is tested and clarified by constructing analytic expressions in a simple model, with adequate structure.
We then show how such velocity distributions can be used in determining the event rates, including modulation, in both the standard and the directional WIMP searches.
American Psychological Association (APA)
Vergados, J. D.. 2015. Asymmetric Velocity Distributions from Halo Density Profiles in the Eddington Approach. Advances in High Energy Physics،Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1052501
Modern Language Association (MLA)
Vergados, J. D.. Asymmetric Velocity Distributions from Halo Density Profiles in the Eddington Approach. Advances in High Energy Physics No. 2015 (2015), pp.1-11.
https://search.emarefa.net/detail/BIM-1052501
American Medical Association (AMA)
Vergados, J. D.. Asymmetric Velocity Distributions from Halo Density Profiles in the Eddington Approach. Advances in High Energy Physics. 2015. Vol. 2015, no. 2015, pp.1-11.
https://search.emarefa.net/detail/BIM-1052501
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1052501