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.
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References
WMAP collaboration, J. Dunkley et al., Five-year Wilkinson Microwave Anisotropy Probe (WMAP) observations: likelihoods and parameters from the WMAP data, Astrophys. J. Suppl. 180 (2009) 306 [arXiv:0803.0586] [SPIRES].
G. Bertone, D. Hooper and J. Silk, Particle dark matter: evidence, candidates and constraints, Phys. Rept. 405 (2005) 279 [hep-ph/0404175] [SPIRES].
C.B. Jackson, G. Servant, G. Shaughnessy, T.M.P. Tait and M. Taoso, Higgs in space!, JCAP 04 (2010) 004 [arXiv:0912.0004] [SPIRES].
M. Battaglia and G. Servant, Four-top production and \( t\bar{t} \) + missing energy events at multi-TeV e + e − colliders, arXiv:1005.4632 [SPIRES].
Q.H. Cao, C.R. Chen, C.S. Li and H. Zhang, Effective dark matter model: relic density, CDMS II, Fermi LAT and LHC, arXiv:0912.4511 [SPIRES].
Y. Bai, P.J. Fox and R. Harnik, The Tevatron at the frontier of dark matter direct detection, arXiv:1005.3797 [arXiv:1005.3797].
J. Goodman et al., Constraints on light Majorana dark matter from colliders, arXiv:1005.1286 [SPIRES].
J. Goodman et al., Constraints on dark matter from colliders, arXiv:1008.1783 [SPIRES].
J. Fan, M. Reece and L.-T. Wang, Non-relativistic effective theory of dark matter direct detection, arXiv:1008.1591 [SPIRES].
The CDMS-II collaboration, Z. Ahmed et al., Dark matter search results from the CDMS II experiment, Science 327 (2010) 1619 [arXiv:0912.3592] [SPIRES].
XENON100 collaboration, E. Aprile et al., First dark matter results from the XENON 100 experiment, Phys. Rev. Lett. 105 (2010) 131302 [arXiv:1005.0380] [SPIRES].
P. Gondolo et al., DarkSUSY: computing supersymmetric dark matter properties numerically, JCAP 07 (2004) 008 [astro-ph/0406204] [SPIRES].
PAMELA collaboration, O. Adriani et al., An anomalous positron abundance in cosmic rays with energies 1.5-100 GeV, Nature 458 (2009) 607 [arXiv:0810.4995] [SPIRES].
O. Adriani et al., A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation, Phys. Rev. Lett. 102 (2009) 051101 [arXiv:0810.4994] [SPIRES].
A.W. Strong et al., The GALPROP cosmic-ray propagation code, arXiv:0907.0559 [SPIRES].
S. Albino, B.A. Kniehl and G. Kramer, Fragmentation functions for light charged hadrons with complete quark flavour separation, Nucl. Phys. B 725 (2005) 181 [hep-ph/ 0502188] [SPIRES].
F. Maltoni and T. Stelzer, MadEvent: automatic event generation with MadGraph, JHEP 02 (2003) 027 [hep-ph/0208156] [SPIRES].
J. Alwall et al., MadGraph/ MadEvent v4: the new web generation, JHEP 09 (2007) 028 [arXiv:0706.2334] [SPIRES].
D. E. Kaplan, K. Rehermann, M.D. Schwartz and B. Tweedie, Top tagging: a method for identifying boosted hadronically decaying top quarks, Phys. Rev. Lett. 101 (2008) 142001 [arXiv:0806.0848] [SPIRES].
CMS collaboration, S. Rappoccio, A new top jet tagging algorithm for highly boosted top jets, PoS(EPS-HEP 2009) 360.
T. Plehn, M. Spannowsky, M. Takeuchi and D. Zerwas, Stop reconstruction with tagged tops, arXiv:1006.2833 [SPIRES].
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ArXiv ePrint: 1009.0618
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Cheung, K., Mawatari, K., Senaha, E. et al. The top window for dark matter. J. High Energ. Phys. 2010, 81 (2010). https://doi.org/10.1007/JHEP10(2010)081
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DOI: https://doi.org/10.1007/JHEP10(2010)081