Improved sensitivity on the electromagnetic dipole moments of the top quark in $\gamma \gamma$, $\gamma {\gamma }^{\ast }$ and ${\gamma }^{\ast }{\gamma }^{\ast }$ collisions at the CLIC

Abstract

We realize a phenomenological study to examine the sensitivity on the magnetic moment and electric dipole moment of the top quark through the processes $\gamma \gamma \to t\bar{t}$, $e\gamma \to e{\gamma }^{\ast }\gamma \to et\bar{t}$ and $e^{-}{e}^{+}\to e^{-}{\gamma }^{\ast }{\gamma }^{\ast }{e}^{+}\to e^{-}t\bar{t}{e}^{+}$ at the CLIC. We find that with a center-of-mass energy of the CLIC-1.4$TeV$, integrated luminosity of $\mathcal{L}=1500f{b}^{-1}$ and CLIC-3$TeV$, integrated luminosity of $\mathcal{L}=2000f{b}^{-1}$ with systematic uncertainties of ${\delta }_{sys}=0,5,10\%$ at the $95\%C.L.$, it is possible the CLIC may put limits on the electromagnetic dipole moments of the top quark ${\hat{a}}_V$ and ${\hat{a}}_A$ with a sensitivity of $\mathcal{O}(10^{-3}-10^{-2})$. Therefore, we show that the sensitivity with the CLIC data is much greater than that for the LHC data.

23 pages, 11 figures and 7 tables

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• Study on the anomalous quartic $W^{+}{W}^{-}\gamma \gamma$ couplings of electroweak bosons in $e^{-}p$ collisions at the LHeC and the FCC-he
• FCC-he sensitivity estimates on the anomalous electromagnetic dipole moments of the top-quark
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• Model-independent sensibility studies for the anomalous dipole moments of the ${\nu }_{\tau }$ at the CLIC based $\gamma e^{-}$ colliders
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• Model-independent study for the tau-neutrino electromagnetic dipole moments in $e^{+}{e}^{-}\to {\nu }_{\tau }{\bar{\nu }}_{\tau }\gamma$ at the CLIC
• Probing the anomalous electromagnetic dipole moments of the top quark in $\gamma p$ collision at the LHC, the HL-LHC and the HE-LHC
• Sensitivity measuring expected on the electromagnetic anomalous couplings in the $t\bar{t}\gamma$ vertex at the FCC-he
• Top quark effective couplings from top-pair tagged photoproduction in $p{e}^{-}$ collisions
• Muon pair production via photon-induced scattering at the CLIC in models with extra dimensions
• Model-independent sensitivity estimates for the electromagnetic dipole moments of the top quark at the Large Hadron Collider and beyond
• Sensitivity analysis for the anomalous $tq\gamma$ couplings via $\gamma q\to t\gamma$ subprocess in photon-proton collisions at the FCC-$\mu$p
• Top Quark Electroweak Dipole Moment at a High Energy Muon Collider