Bonn 2001 – scientific programme

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T: Teilchenphysik

T 504: Feldtheorie 3

T 504.8: Talk

Wednesday, March 28, 2001, 18:00–18:15, HS III

Sfermion and gluino pair production in polarized and unpolarized photon-photon collisions — •Stefan Berge, Michael Klasen, and Yoshiaki Umeda — II.Inst.f.Theor.Physik,Univ.Hamburg

We present predictions for the production of sfermion pairs and gluino pairs in polarized and unpolarized photon-photon collisions at future linear colliders. Both direct and resolved photon processes are included. The results are compared to the corresponding cross sections in electron-positron annihilation. While sfermions can be produced in all cases at the tree level, gluino production is induced only at the one-loop level in direct photoproduction and electron-positron annihilation. We find the photon-photon cross sections can be substantially larger than the annihilation cross sections.