Probing anomalous quartic γγγγ couplings in light-by-light collisions at the CLIC
Özet
The anomalous quartic neutral couplings of the γγγγ 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− collision energies 1500 GeV and 3000 GeV. The helicity of the initial electron beams is taken to be ±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 ζ1 and ζ2 are calculated. The best bounds on these couplings are found to be 6.85×10−16 GeV−4 and 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 γγγγ vertex.
Bağlantı
https://link.springer.com/article/10.1140/epjc/s10052-021-09466-1https://hdl.handle.net/20.500.12418/12650