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The Top Window for dark matter

Authors :
Cheung, Kingman
Mawatari, Kentarou
Senaha, Eibun
Tseng, Po-Yan
Yuan, Tzu-Chiang
Source :
JHEP 1010:081,2010
Publication Year :
2010

Abstract

We investigate a scenario that the top quark is the only window to the dark matter particle. We use the effective Lagrangian approach to write down the interaction between the top quark and the dark matter particle. Requiring the dark matter satisfying the relic density we obtain the size of the effective interaction. We show that the scenario can be made consistent with the direct and indirect detection experiments by adjusting the size of the effective coupling. Finally, we calculate the production cross section for $t\bar t + \chi \bar \chi$ at the Large Hadron Collider (LHC), which will give rise to an interesting signature of a top-pair plus large missing energy.<br />Comment: 17 pages including 8 figures; added references and a footnote

Details

Database :
arXiv
Journal :
JHEP 1010:081,2010
Publication Type :
Report
Accession number :
edsarx.1009.0618
Document Type :
Working Paper
Full Text :
https://doi.org/10.1007/JHEP10(2010)081