Probing anomalous quartic $$\gamma \gamma \gamma \gamma $$ couplings in light-by-light collisions at the CLIC

Author:

İnan S. C.,Kisselev A. V.

Abstract

AbstractThe anomalous quartic neutral couplings of the $$\gamma \gamma \gamma \gamma $$ γ γ γ γ vertex in a polarized light-by-light scattering of the Compton backscattered photons at the CLIC are examined. Both differential and total cross sections are calculated for $$e^+e^-$$ e + e - collision energies 1500 GeV and 3000 GeV. The helicity of the initial electron beams is taken to be $$\pm \,0.8$$ ± 0.8 . The unpolarized and SM cross sections for the same values of helicities are also estimated. The 95% C.L. exclusion limits on two anomalous photon couplings $$\zeta _1$$ ζ 1 and $$\zeta _2$$ ζ 2 are calculated. The best bounds on these couplings are found to be $$6.85 \times 10^{-16} \text { GeV}^{-4}$$ 6.85 × 10 - 16 GeV - 4 and $$1.43 \times 10^{-15} \text { GeV}^{-4}$$ 1.43 × 10 - 15 GeV - 4 , respectively. The results are compared with the exclusion bounds obtained previously for the LHC and HL-LHC. It is shown that the light-by-light scattering at the CLIC, especially the polarized, has a greater potential to search for the anomalous quartic neutral couplings of the $$\gamma \gamma \gamma \gamma $$ γ γ γ γ vertex.

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

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