期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 8, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2009/08/014
关键词
Beyond Standard Model; Cosmology of Theories beyond the SM; Anomalies in Field and String Theories
资金
- PAI [PAI-10825VF]
- European Network of Theoretical Astroparticle Physics [RII3-CT-2004-506222]
- French ANR
- European Commission Marie Curie Intra-European Fellowships [041443]
We study the consequences of an extension of the standard model containing an invisible extra gauge group under which the SM particles are neutral. We show that effective operators, generated by loops of heavy chiral fermions charged under both gauge groups and connecting the new gauge sector to the Standard Model, can give rise to a viable dark matter candidate. Its annihilations produce clean visible signals through a gamma-ray line. This would be a smoking gun signature of such models observable by actual experiments.
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