| Autor: |
Collaboration, D0, Bertram, Iain, Borissov, Guennadi, Fox, Harald, Love, Peter, Rakitin, Alexander, Ratoff, Peter, Sopczak, Andre, Williams, Mark |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
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| DOI: |
10.1103/PhysRevLett.100.131801 |
| Popis: |
We present a study of four muon, four electron, and two muon two electron events using 1 fb^(-1) of data collected with the D0 detector at the Fermilab Tevatron p-barp Collider at sqrt(s) = 1.96 TeV. Requiring the lepton pair masses to be greater than 30 GeV, we observe one event, consistent with the expected background of 0.13 +- 0.03 events and with the predicted standard model ZZ and Z\gamma^* production of 1.71 +-0.15 events. We set an upper limit on the ZZ and Z\gamma^* cross section of 4.4 pb at the 95% C.L. We also derive limits on anomalous neutral trilinear ZZZ and ZZ\gamma^* gauge couplings. The one-parameter 95%$ C.L. coupling limits with a form factor scale Lambda = 1.2 TeV are -0.28 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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