Lepton Number Violating Signals of the Top Partners in the Left-Right Twin Higgs Model

Abstract

We study the collider signatures of the left-right twin Higgs model in the case that the right-handed neutrino mass is less than the mass of the right-handed gauge boson. In this scenario, new leptonic decay chains open up, allowing the particles which cancel the one-loop quadratic divergences of the Higgs, the right-handed gauge bosons and top-partners, to be discovered. Half of these events contain same-sign leptons without missing energy, which have no genuine standard model background and for which the backgrounds are purely instrumental. These signals may be used to complement other collider searches, and in certain regions of parameter space, may be the only way to observe the particles responsible for natural electroweak symmetry breaking in the left-right twin Higgs model.

20 pages, 3 figures and 2 table. References added

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• Single production of the top partners at high energy colliders
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Cited by in corpus (11)

• Search for single production of the vector-like top partner at the 14 TeV LHC
• Search for single production of vector-like top partners at the Large Hadron Electron Collider
• Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma \gamma$ at the high-luminosity LHC
• The production and decay of the top partner $T$ in the left-right twin higgs model at the ILC and CLIC
• Pair production of Higgs bosons associated with $Z$ boson in the left-right twin Higgs model at the ILC
• Dark matter and Higgs phenomenology predicted by left-right twin Higgs model in light of CDMS II results
• Higgs boson production and decay at $e^{+}{e}^{-}$ colliders as a probe of the Left-Right twin Higgs model
• Left-right twin Higgs model confronted with the latest LHC Higgs data
• Production and decays of a light ${\varphi }^0$ in the LRTH model under the LHC Higgs data
• Muon g-2 Anomaly confronted with the higgs global data in the Left-Right Twin Higgs Models
• Constraining dark matter in the LRTH model with latest LHC, XENON100 and LUX data