skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Leptophilic dark matter and the anomalous magnetic moment of the muon

Abstract

We consider renormalizable theories such that the scattering of dark matter off leptons arises at tree level, but scattering off nuclei only arises at loop. In this framework, the various dark matter candidates can be classified by their spins and by the forms of their interactions with leptons. In this study, we determine the corrections to the anomalous magnetic moment of the muon that arise from its interactions with dark matter. We then consider the implications of these results for a set of simplified models of leptophilic dark matter. When a dark matter candidate reduces the existing tension between the standard model prediction of the anomalous magnetic moment and the experimental measurement, the region of parameter space favored to completely remove the discrepancy is highlighted. Conversely, when agreement is worsened, we place limits on the parameters of the corresponding simplified model. These bounds and favored regions are compared against the experimental constraints on the simplified model from direct detection and from collider searches. Although these constraints are severe, we find there do exist limited regions of parameter space in these simple theories that can explain the observed anomaly in the muon magnetic moment while remaining consistent with all experimental bounds.

Authors:
 [1];  [2];  [2]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Univ. of Maryland, College Park, MD (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1226274
Report Number(s):
FERMILAB-PUB-14-016-T
Journal ID: ISSN 1029-8479; arXiv eprint number arXiv:1402.7369; TRN: US1601142
Grant/Contract Number:
AC02-07CH11359
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2014; Journal Issue: 8; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; phenomenological models

Citation Formats

Agrawal, Prateek, Chacko, Zackaria, and Verhaaren, Christopher B. Leptophilic dark matter and the anomalous magnetic moment of the muon. United States: N. p., 2014. Web. doi:10.1007/JHEP08(2014)147.
Agrawal, Prateek, Chacko, Zackaria, & Verhaaren, Christopher B. Leptophilic dark matter and the anomalous magnetic moment of the muon. United States. doi:10.1007/JHEP08(2014)147.
Agrawal, Prateek, Chacko, Zackaria, and Verhaaren, Christopher B. Tue . "Leptophilic dark matter and the anomalous magnetic moment of the muon". United States. doi:10.1007/JHEP08(2014)147. https://www.osti.gov/servlets/purl/1226274.
@article{osti_1226274,
title = {Leptophilic dark matter and the anomalous magnetic moment of the muon},
author = {Agrawal, Prateek and Chacko, Zackaria and Verhaaren, Christopher B.},
abstractNote = {We consider renormalizable theories such that the scattering of dark matter off leptons arises at tree level, but scattering off nuclei only arises at loop. In this framework, the various dark matter candidates can be classified by their spins and by the forms of their interactions with leptons. In this study, we determine the corrections to the anomalous magnetic moment of the muon that arise from its interactions with dark matter. We then consider the implications of these results for a set of simplified models of leptophilic dark matter. When a dark matter candidate reduces the existing tension between the standard model prediction of the anomalous magnetic moment and the experimental measurement, the region of parameter space favored to completely remove the discrepancy is highlighted. Conversely, when agreement is worsened, we place limits on the parameters of the corresponding simplified model. These bounds and favored regions are compared against the experimental constraints on the simplified model from direct detection and from collider searches. Although these constraints are severe, we find there do exist limited regions of parameter space in these simple theories that can explain the observed anomaly in the muon magnetic moment while remaining consistent with all experimental bounds.},
doi = {10.1007/JHEP08(2014)147},
journal = {Journal of High Energy Physics (Online)},
number = 8,
volume = 2014,
place = {United States},
year = {Tue Aug 26 00:00:00 EDT 2014},
month = {Tue Aug 26 00:00:00 EDT 2014}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 27works
Citation information provided by
Web of Science

Save / Share: