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No-scale supergravity confronts LEP diphoton events
We note that two acoplanar diphoton events observed at LEP, by OPAL at sqrt{s}=130 GeV and by L3 and sqrt{s}=161 GeV, are consistent with the predictions of our previously proposed one-parameter no-scale supergravity model with a light gravitino, via the process e^+e^- -> chi chi -> gamma gamm...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
1996
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Materias: | |
Acceso en línea: | http://cds.cern.ch/record/312084 |
Sumario: | We note that two acoplanar diphoton events observed at LEP, by OPAL at sqrt{s}=130 GeV and by L3 and sqrt{s}=161 GeV, are consistent with the predictions of our previously proposed one-parameter no-scale supergravity model with a light gravitino, via the process e^+e^- -> chi chi -> gamma gamma+E_miss for m_chi \approx (50-60) GeV. This region of parameter space is also consistent with the chargino interpretations of the CDF ee gamma gamma + E_T,miss event. |
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