期刊
PHYSICAL REVIEW D
卷 88, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.88.014502
关键词
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资金
- LDRD [10-ERD-033, 13-ERD-023]
- U. S. Department of Energy [DE-FG02-04ER41290, DE-FG02-91ER40676, DE-FG02-92ER-40704, DE-AC52-07NA27344, DE-AC02-06CH11357, DE-AC02-07CH11359]
- National Science Foundation [NSF PHY11-00905, PHY11-25915]
- Office of Nuclear Physics in the U.S. Department of Energy's Office of Science [DE-AC02-05CH11231]
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969757, 1100905] Funding Source: National Science Foundation
Composite dark matter candidates, which can arise from new strongly-coupled sectors, are well-motivated and phenomenologically interesting, particularly in the context of asymmetric generation of the relic density. In this work, we employ lattice calculations to study the electromagnetic form factors of electroweak-neutral dark-matter baryons for a three-color, QCD-like theory with N-f = 2 and 6 degenerate fermions in the fundamental representation. We calculate the (connected) charge radius and anomalous magnetic moment, both of which can play a significant role for direct detection of composite dark matter. We find minimal N-f dependence in these quantities. We generate mass-dependent cross sections for dark matter-nucleon interactions and use them in conjunction with experimental results from XENON100, excluding dark matter candidates of this type with masses below 10 TeV.
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