Flavor changing neutral currents and CP violating processes in generalized supersymmetric theories

Sep, 1995
13 pages
Published in:
  • Phys.Lett.B 374 (1996) 80-86
e-Print:
Report number:
  • ROME1-1109-95,
  • ROM2F-95-20

Citations per year

1995200220092016202205101520
Abstract:
We consider supersymmetric extensions of the standard model with general non-universal soft breaking terms. We analyse in a model-independent way the constraints on these terms at the electroweak energy scale coming from gluino mediated flavour (F) changing neutral current and CP-violating processes. We have computed the complete ΔF=1\Delta F=1 and ΔF=2\Delta F=2 effective hamiltonian for gluino mediated processes, including for the first time the effect of box diagrams in the evaluation of ϵ /ϵ\epsilon~{\prime}/\epsilon. We present numerical results for the constraints on these non-universal soft breaking terms for different values of the parameters, extending the analysis also to the leptonic sector. A comparison with previous results in the literature is given.
  • electroweak interaction
  • supersymmetry
  • postulated particle: gluino
  • neutral current: flavor changing
  • CP: violation
  • effective Hamiltonian
  • bottom: radiative decay
  • radiative decay: bottom
  • lepton: radiative decay
  • radiative decay: lepton