Exploring the heavy quark sector of the Bestest Little Higgs model at the LHC

Abstract

We present discovery limits for heavy quarks in the Bestest Little Higgs model via pair production at the LHC running at $\sqrt{s}=7\mathrm{TeV}$. We study pair produced heavy top-like quarks decaying to $b\bar{b}{W}^{+}{W}^{-}$ and $t\bar{t}ZZ$ final states and singly produced heavy top-like quarks via t-channel $W$ exchange. These results are compared to currently available limits on heavy top-like quark cross sections from CMS (with 1.14 fb${}^{-1}$ integrated luminosity) for two scenarios of Yukawa couplings. We find that the CMS data limits the mass of the lightest top partner to larger than 413 GeV in the first scenario, where the two lightest top-partners have a small mass splitting, and 364 GeV in the second scenario, where the mass splitting between the two lightest top-partners is larger.

16 pages, 8 figures, Published in Journal of High Energy Physics

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• Natural SUSY Endures
• Search for Supersymmetry at the LHC in Events with Jets and Missing Transverse Energy
• Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
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• Supersymmetry Without Prejudice at the LHC
• Search for a Vector-like Quark with Charge 2/3 in t + Z Events from pp Collisions at sqrt(s) = 7 TeV
• BRIDGE: Branching Ratio Inquiry/Decay Generated Events
• Search for heavy vector-like quarks coupling to light quarks in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
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Cited by in corpus (9)

• Composite Higgses
• A First Top Partner Hunter's Guide
• A Fermionic Top Partner: Naturalness and the LHC
• Alternatives to an Elementary Higgs
• Can the 125 GeV Higgs be the Little Higgs?
• Exotic Top Partners and Little Higgs
• Top Partner Probes of Extended Higgs Sectors
• Constraining the Little Higgs model of Schmaltz, Stolarski, and Thaler with recent results from the LHC
• Research on the electromagnetic and weak dipole moments of the tau-lepton at the Bestest Little Higgs Model