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R-parity violation at LEP2: virtual effects
We investigate the ability of LEP2 to detect possible R-parity violation, especially for the case where direct production cross-sections are too small for all superparticles. We demonstrate that for coupling strengths allowed by present experiments, sfermion-exchange diagrams can contribute signific...
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Lenguaje: | eng |
Publicado: |
1996
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(96)00272-9 http://cds.cern.ch/record/292265 |
Sumario: | We investigate the ability of LEP2 to detect possible R-parity violation, especially for the case where direct production cross-sections are too small for all superparticles. We demonstrate that for coupling strengths allowed by present experiments, sfermion-exchange diagrams can contribute significantly to the e^+ e^- \rightarrow f \bar{f} process. This would be a useful tool in further constraining the parameter space. Similar arguments hold for leptoquarks and dileptons as well. |
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