Probing anomalous gamma gamma gamma Z couplings through gamma Z production in gamma gamma collisions at the CLIC

Inan S. C., Kisselev A.

JOURNAL OF HIGH ENERGY PHYSICS, cilt.2021, sa.10, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 2021 Sayı: 10
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/jhep10(2021)121
  • Dergi Adı: JOURNAL OF HIGH ENERGY PHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, INSPEC, zbMATH, Directory of Open Access Journals
  • Anahtar Kelimeler: Phenomenological Models, PHOTON-PHOTON SCATTERING, Z-BOSON DECAY, PHYSICS, LIGHT, LOOPS
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

We have estimated the sensitivity to the anomalous couplings of the gamma gamma gamma Z vertex in the gamma gamma -> gamma Z scattering of the Compton backscattered photons at the CLIC. Both polarized and unpolarized collisions at the e(+)e(-) energies 1500 GeV and 3000 GeV are addressed, and anomalous contributions to helicity amplitudes are derived. The differential and total cross sections are calculated. We have obtained 95% C.L. exclusion limits on the anomalous quartic gauge couplings (QGCs). They are compared with corresponding bounds derived for the gamma gamma gamma Z couplings via gamma Z production at the LHC. The constraints on the anomalous QGCs are one to two orders of magnitude more stringent that at the HL-LHC. The partial-wave unitarity constraints on the anomalous couplings are examined. It is shown that the unitarity is not violated in the region of the anomalous QGCs studied in the paper.