Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-04-26
Eur.Phys.J.C10:499-513,1999
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages and 6 figures
Scientific paper
10.1007/s100520050774
We study the helicity amplitudes and the observables of the process $\gamma \gamma \to \gamma Z$ at high energy. As in the case of the $\gamma \gamma \to \gamma\gamma$ process studied before, the relevant diagrams in the standard model (SM) involve $W$, charged quark and lepton loops; while in SUSY we also have contributions from chargino, and charged sfermion or Higgs loop diagrams. Above 250 GeV, the dominant SM amplitudes are themselves dominated by the $W$ loop, and as for $\gamma \gamma \to \gamma \gamma$, they are helicity conserving and almost purely imaginary. We discuss the complementary information provided by $\gamma \gamma \to \gamma Z$ for the identification of possible non standard effects. This process, together with $\gamma \gamma \to \gamma \gamma$, should provide very useful information on the nature of possible new physics particles, above the threshold of their direct production.
Gounaris G. J.
Layssac J.
Porfyriadis P. I.
Renard Fernand M.
No associations
LandOfFree
The gamma gamma to gamma Z process at high energies and the search for virtual SUSY effects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The gamma gamma to gamma Z process at high energies and the search for virtual SUSY effects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The gamma gamma to gamma Z process at high energies and the search for virtual SUSY effects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-54304