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http://doi.org/10.25358/openscience-3920Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Wittgen, Matthias | |
| dc.date.accessioned | 2001-12-31T23:00:00Z | |
| dc.date.available | 2002-01-01T00:00:00Z | |
| dc.date.issued | 2002 | |
| dc.identifier.uri | https://openscience.ub.uni-mainz.de/handle/20.500.12030/3922 | - |
| dc.description.abstract | Das NA48 Experiment am CERN misst die direkte CP-Verletzung im System der neutralen Kaonen aus der Zerfallsrate von kurzlebigen undlanglebigen neutralen Kaonen in zwei Pionen.Des Weiteren gestattet der experimentelle Aufbau den Nachweis seltenener Kaonzerfaelle.In dieser Dissertation werden Zerfaelle des langlebigen Kaons in Endzustaende mit vier Leptonen untersucht. Fuer das Verzweigungsverhaeltnis von K_L -> e+e-e+e- ergibt sich(3.94E-8 +/- 0.40E-8).Fuer das von K_L -> mu+mu-mu+mu- ergibt sich (3.08E-9 +/- 0.71E-9).Fuer den Leptonenzahl verletzenden ZerfallK_L -> mu(+/-)mu(+/-)e(-/+)e(-/+) wirdeine obere Grenze von 3.5E-10 (CL=90%) gesetzt. | de_DE |
| dc.description.abstract | The NA48 experiment at CERN measures the direct CP violation in the neutralkaon system from the decay rate of the short-lived and long-lived neutral kaon into two pions. Futhermore, the experimental setup permits thedetection of rare kaon decays.The decay rates of the long-lived kaon intofinal states with four leptons are studied inthis thesis.A branching ratio of(3.94E-8 +/- 0. 40E-8) for K_L -> e+e-e+e- and (3.08E-9 +/- 0.71E-9) for K_L -> mu+mu-mu+mu-has been measured.An upper limit of 3.5E-10 (CL=90%)for the lepton flavour violating decay K_L -> mu(+/-)mu(+/-)e(-/+)e(-/+) has been determined. | en_GB |
| dc.language.iso | ger | |
| dc.rights | InCopyright | de_DE |
| dc.rights.uri | https://rightsstatements.org/vocab/InC/1.0/ | |
| dc.subject.ddc | 530 Physik | de_DE |
| dc.subject.ddc | 530 Physics | en_GB |
| dc.title | Messung der K 0 L e + e - e + e - und K 0 L my + my - e + e - Zerfallsraten | de_DE |
| dc.type | Dissertation | de_DE |
| dc.identifier.urn | urn:nbn:de:hebis:77-3303 | |
| dc.identifier.doi | http://doi.org/10.25358/openscience-3920 | - |
| jgu.type.dinitype | doctoralThesis | |
| jgu.type.version | Original work | en_GB |
| jgu.type.resource | Text | |
| jgu.organisation.department | FB 08 Physik, Mathematik u. Informatik | - |
| jgu.organisation.year | 2002 | |
| jgu.organisation.number | 7940 | - |
| jgu.organisation.name | Johannes Gutenberg-Universität Mainz | - |
| jgu.rights.accessrights | openAccess | - |
| jgu.organisation.place | Mainz | - |
| jgu.subject.ddccode | 530 | |
| opus.date.accessioned | 2001-12-31T23:00:00Z | |
| opus.date.modified | 2005-04-07T11:00:40Z | |
| opus.date.available | 2002-01-01T00:00:00 | |
| opus.organisation.string | FB 08: Physik, Mathematik und Informatik: FB 08: Physik, Mathematik und Informatik | de_DE |
| opus.identifier.opusid | 330 | |
| opus.institute.number | 0800 | |
| opus.metadataonly | false | |
| opus.type.contenttype | Dissertation | de_DE |
| opus.type.contenttype | Dissertation | en_GB |
| jgu.organisation.ror | https://ror.org/023b0x485 | |
| Appears in collections: | JGU-Publikationen | |
