Susy Virtual effects at LEP2 Boundary

Details Susy Virtual effects at LEP2 Boundary Susy Virtual effects at LEP2 Boundary

1998-12-23

arxiv.org/abs/hep-ph/9812484v3

Eur.Phys.J.C10:331-336,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages and 8 figures; corrected numerical results

Scientific paper

10.1007/s100529900115

We examine the possibility that SUSY particles are light, i.e. have a mass just beyond the final kinematical reach of LEP2. In this case, even if light particles are not directly detected, their virtual effects are enhanced by a ``close to threshold'' resonance in the s-channel. We find that this resonant effect is absent in the case of light sfermions, while it is enhanced in the case of light gauginos, since neutralinos and charginos add coherently in some regions of the allowed parameter space. We discuss this ``virtual-alliance'' in detail and try to examine the possibilities of its experimental verification.

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