Flavour-changing effects on e+e-→Hbs̄,Hb̄s in the MSSM
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, Munich, Germany
2 Department of Physics, CERN-TH Division, 1211, Geneva 23, Switzerland
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Revised: 9 February 2006
Published online: 27 April 2006
Flavour-changing effects originating from the exchange of scalar particles in the processes e+e-→Hxbs̄,Hxb̄s, with Hx≡h0,H0,A0, are investigated in the minimal supersymmetric standard model with non-minimal flavour violation at the one-loop level. The dominating SUSY-QCD contributions with squark–gluino loops are calculated and discussed. We consider the SUSY scenario with non-minimal flavour mixing in the down-type squark-mass matrix. The flavour-changing cross sections are derived, and we discuss the dependence on the MSSM parameters and the strength of flavour mixing. The values for the cross section can reach 10-4 pb for the production of the heavy Higgs boson H0 or A0, and only 10-7 pb for the light Higgs boson h0. Non-decoupling behaviour occurs for both h0,H0 production in the case of a common heavy SUSY mass scale.
© Springer-Verlag, 2006