Modified top quark condensation model with the extra heavy fermion, the $125$ GeV Pseudo - Goldstone boson, and the additional heavy scalar bosons

Abstract

We discuss the modified top quark condensation model proposed in \cite{VZ2015}. This construction was inspired by the top - seesaw scenario, in which the extra heavy fermion $\chi$ is added that may be paired with the top quark. Besides, this model incorporates the ideas of the Little Higgs scenario, in which the $125$ GeV scalar particle appears as a Pseudo - Goldstone boson. This model admits (in addition to the $125$ GeV scalar boson $H$) the heavier scalar excitation $H^{\prime }$. We consider the region of parameters, where its mass is $M_{H^{\prime }}\sim 1$ TeV, the width of $H^{\prime }$ is ${\Gamma }_{H^{\prime }}\sim 0.3M_{H^{\prime }}$, while the mass of the heavy fermion is $m_{\chi }\sim 1$ TeV. We find that in this model the value of the cross - section ${\sigma }_{pp\to H^{\prime }+X\to \gamma +\gamma +X}$ for $\sqrt{s}=13$ TeV is essentially smaller than the present experimental upper bound. Besides, we find, that for the chosen values of parameters there should exist the CP - even scalar boson with mass $\approx 2m_{\chi }$ and very small width. In addition, the model predicts the existence of the extra neutral CP even scalar boson and the charged scalar boson with masses of the order of $1$ TeV.

Latex, 20 pages

References in corpus (12)

• Parton distributions for the LHC
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• Towards Working Technicolor: Effective Theories and Dark Matter
• Search for high-mass diphoton resonances in proton-proton collisions at 13 TeV and combination with 8 TeV search
• Hypercharge-Universal Topcolor
• Searching for Colorons at the Large Hadron Collider
• Diphoton Signals from Colorless Hidden Quarkonia
• Reconsideration of the 2-flavor NJL model with dimensional regularization at finite temperature and density
• Explaining the 750 GeV diphoton excess with a colored scalar charged under a new confining gauge interaction
• Walking from 750 GeV to 950 GeV in the Technipion Zoo
• Modified model of top quark condensation

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