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...

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Detalles Bibliográficos
Autores principales: Lopez, Jorge L., Nanopoulos, Dimitri V., Zichichi, A.
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/312084
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author Lopez, Jorge L.
Nanopoulos, Dimitri V.
Zichichi, A.
author_facet Lopez, Jorge L.
Nanopoulos, Dimitri V.
Zichichi, A.
author_sort Lopez, Jorge L.
collection CERN
description 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.
id cern-312084
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3120842023-03-14T18:58:56Zhttp://cds.cern.ch/record/312084engLopez, Jorge L.Nanopoulos, Dimitri V.Zichichi, A.No-scale supergravity confronts LEP diphoton eventsParticle Physics - PhenomenologyWe 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.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.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.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.hep-ph/9610235DOE-ER-40717-34CTP-TAMU-50-96ACT-15-96CTP-TAMU-96-50DOE-ER-40717-34oai:cds.cern.ch:3120841996-10-03
spellingShingle Particle Physics - Phenomenology
Lopez, Jorge L.
Nanopoulos, Dimitri V.
Zichichi, A.
No-scale supergravity confronts LEP diphoton events
title No-scale supergravity confronts LEP diphoton events
title_full No-scale supergravity confronts LEP diphoton events
title_fullStr No-scale supergravity confronts LEP diphoton events
title_full_unstemmed No-scale supergravity confronts LEP diphoton events
title_short No-scale supergravity confronts LEP diphoton events
title_sort no-scale supergravity confronts lep diphoton events
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/312084
work_keys_str_mv AT lopezjorgel noscalesupergravityconfrontslepdiphotonevents
AT nanopoulosdimitriv noscalesupergravityconfrontslepdiphotonevents
AT zichichia noscalesupergravityconfrontslepdiphotonevents

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