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2011

Single Vectorlike Quark Production at the LHC

Barcelo, Roberto, Carmona, Adrian, Chala, Mikael et al.

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A gluon resonance G of mass below 1 TeV could be the origin of the t\bar{t} forward-backward asymmetry observed at the Tevatron provided that new decay modes G->\bar{q}Q, with q a standard quark and Q its massive excitation, make G broad enough.

We consider all the different cases, with q the top, the bottom or a light quark and dominant decay modes Q->Wq' or Q->Zq.
We show that current experimental searches are unable to probe the model, but that minimal departures from these analyses can explore a large region of its parameter space for the current LHC luminosity.
This includes the challenging case with the new quarks decaying mostly into light quark flavors.

Single Vectorlike Quark Production at the LHC · Around

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Then

R. Barcelo, A. Carmona, M. Masip, J. Santiago, Phys. Rev. D84
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CMS Collaboration, note CMS PAS TOP-10-007; ATLAS Collaboration, note ATLAS-CONF-2011-087; note ATLAS-CONF-2011-123
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