DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Jae Kwan | ko |
dc.date.accessioned | 2013-02-27T16:36:14Z | - |
dc.date.available | 2013-02-27T16:36:14Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1995-12 | - |
dc.identifier.citation | PHYSICS LETTERS B, v.345, no.4, pp.609 - 616 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10203/69625 | - |
dc.description.abstract | We have searched for anomalous Z --> gamma gamma gamma events with the L3 detector at LEP. No significant deviations from the expected QED e(+)e(-)-->gamma gamma gamma events are observed. The branching ratio upper limit for a composite Z decaying directly into three photons is found to be 1.0 x 10(-1) at 95% C.L. The branching ratio upper limits for the process Z-->gamma X,X-->gamma gamma are in the range of 0.4 to 1.3 x 10(-5), depending on the mass and width of the scalar particle X. In the context of a model with magnetic monopoles coupling to the Z, we find BR(Z-->gamma gamma gamma) < 0.8 x 10(-5) at 95% C.L; this results in a lower mass limit of 510 GeV for a magnetic monopole. | - |
dc.language | English | - |
dc.publisher | Elsevier Science Bv | - |
dc.subject | L3 EXPERIMENT | - |
dc.subject | PHOTONS | - |
dc.title | SEARCH FOR ANOMALOUS Z-]GAMMA-GAMMA-GAMMA EVENTS AT LEP | - |
dc.type | Article | - |
dc.identifier.wosid | A1995QJ71100044 | - |
dc.identifier.scopusid | 2-s2.0-0000121941 | - |
dc.type.rims | ART | - |
dc.citation.volume | 345 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 609 | - |
dc.citation.endingpage | 616 | - |
dc.citation.publicationname | PHYSICS LETTERS B | - |
dc.type.journalArticle | Article | - |
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