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Natural supersymmetric model with MeV dark matter

Hooper, Dan and Zurek, Kathryn M. (2008) Natural supersymmetric model with MeV dark matter. Physical Review D, 77 (8). Art. No. 087302. ISSN 1550-7998. doi:10.1103/physrevd.77.087302. https://resolver.caltech.edu/CaltechAUTHORS:20190611-125827397

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Abstract

It has previously been proposed that annihilating dark matter particles with MeV-scale masses could be responsible for the flux of 511 keV photons observed from the region of the Galactic Bulge. The conventional wisdom, however, is that it is very challenging to construct a viable particle physics model containing MeV dark matter. In this paper, we challenge this conclusion by describing a simple and natural supersymmetric model in which the lightest supersymmetric particle naturally has a MeV-scale mass and the other phenomenological properties required to generate the 511 keV emission. In particular, the small (∼10^(−5)) effective couplings between dark matter and the standard model fermions required in this scenario naturally lead to radiative corrections that generate MeV-scale masses for both the dark matter candidate and the mediator particle.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/physrevd.77.087302DOIArticle
https://arxiv.org/abs/0801.3686arXivDiscussion Paper
Alternate Title:A Natural Supersymmetric Model with MeV Dark Matter
Additional Information:© 2008 American Physical Society. (Received 28 January 2008; published 11 April 2008) This work has been supported by the U.S. Department of Energy, including Grant No. DE-FG02-95ER40896, and by NASA Grant No. NAG5-10842. We thank Dan Chung, Bogdan Dobrescu, Lisa Everett, Roni Harnik, Tom McElmurry, Ann Nelson, Neal Weiner, and especially David E. Kaplan and Frank Petriello for discussions.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FG02-95ER40896
NASANAG5-10842
Issue or Number:8
Classification Code:PACS numbers: 95.35.+d, 12.60.Jv, 95.30.Cq
DOI:10.1103/physrevd.77.087302
Record Number:CaltechAUTHORS:20190611-125827397
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190611-125827397
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96290
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Jun 2019 18:14
Last Modified:16 Nov 2021 17:19

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