LHC signals of T-odd heavy quarks in the Littlest Higgs model

Abstract

Recently proposed Little Higgs models present a viable solution to the naturalness problem of the Standard Model. An additional discrete symmetry, called T-parity, has been included in the simplest Little Higgs models to evade the constraints arising from electroweak precision data. The Littlest Higgs model with T-parity (LHT) not only predicts a set of new fermions in addition to the heavy gauge bosons of the original Little Higgs model, but also provides a new candidate for dark matter. In this paper, we study two particularly interesting signatures of T-odd fermion pair production at the LHC, namely, (a) jj + l^+ l^- + missing E_T and (b) jj + b \bar b + l^\pm + missing E_T. Using a parton level Monte Carlo event generator, we evaluate both the signal as well as the standard model background profile for a selected set of model parameters thereby developing a good discriminator. Finally, we scan the parameter space and delineate the possible discovery region in the same.

arXiv comment21 pages, 7 figures

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Cited by in corpus (29)

• Single production of the top partners at high energy colliders
• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
• The Top Triangle Moose: Combining Higgsless and Topcolor Mechanisms for Mass Generation
• Higgs boson productions at LHC as a probe of different littlest Higgs models with T-parity
• The production and decay of the top partner $T$ in the left-right twin higgs model at the ILC and CLIC
• Lone Higgs at the LHC
• Looking for a vectorlike B quark at LHC using jet substructure
• Lepton flavor violation decays ${\tau }^{-}\to {\mu }^{-}{P}_1{P}_2$ in the topcolor-assisted technicolor model and the littlest Higgs model with $T$ parity
• Precision Measurements of Little Higgs Parameters at the International Linear Collider
• Implications of the Little Higgs Dark Matter and T-odd Fermions
• Lepton flavor violating Z boson decays induced by scalar unparticle
• Dileptonic signatures of T-odd quarks at the LHC
• Discrimination of low missing energy look-alikes at the LHC
• Dilepton and Four-Lepton Signals at the LHC in the Littlest Higgs Model with T-parity Violation
• Unparticle physics and lepton flavor violating radion decays in the Randall-Sundrum scenario
• The impossibility of heavy neutrino dark matter in the Littlest Higgs Model with T-parity: constraints from direct search
• Dijet signals of the Little Higgs model with T-parity
• Production of mirror fermions via $e\gamma$ and $ep$ collisions in the littlest Higgs model with T-parity
• Same-Sign Dilepton Excesses and Vector-like Quarks
• Associated production of the scalars and new gauge bosons from a little Higgs model at the LHC
• On-shell $WW\gamma$ vertex in the T-Parity and non T-Parity Littlest Higgs model
• Little Higgs Dark Matter after PandaX-II/LUX 2016 and LHC Run-1
• Probing the littlest Higgs model with $T$ parity using di-Higgs events through $Z_H$-pair production at the LHC in NLO QCD
• Little Higgs after the little one
• Photon-induced production of the mirror quarks from the $LHT$ model at the $LHC$
• Pair production of the T-odd leptons at the LHC
• NLO QCD corrections to same-sign $T$-odd quark pair production in the littlest Higgs model with $T$-parity at the LHC
• Using the Higgs boson to probe the littlest Higgs model with T-parity through $Z_H{W}_H$ production at the LHC
• $T$-odd quark pair production and decay at $\gamma \gamma$ collider in the littlest Higgs model with $T$ parity in next-to-leading order QCD