Study of the ZZγand ZγγCouplings in Z(νν)γProduction
| dc.creator | Abachi, S. | |
| dc.date | 1997-02-22 | |
| dc.date.accessioned | 2026-07-07T12:02:15Z | |
| dc.date.available | 2026-07-07T12:02:15Z | |
| dc.description | We have measured the ZZ-gamma and Z-gamma-gamma couplings by studying p-bar p -> (missing ET) gamma + X events at sqrt(s)=1.8 TeV with the D0 detector at the Fermilab Tevatron Collider. This first study of hadronic Z-gamma production in the neutrino decay channel gives the most stringent limits on anomalous couplings available. A fit to the transverse energy spectrum of the photon in the candidate event sample, based on a data set corresponding to an integrated luminosity of 13.1 pb^(-1), yields 95% CL limits on the anomalous CP-conserving ZZ-gamma couplings of |h^Z_(30)|<0.9, |h^Z_(40)|<0.21, for a form-factor scale Lambda = 500 GeV. Combining these results with our previous measurement using Z -> ee and mu-mu yields the limits:|h^Z_(30)|<0.8, |h^Z_(40)|<0.19 (Lambda = 500 GeV) and |h^Z_(30)|<0.4, |h^Z_(40)|<0.06 (Lambda = 750 GeV). | |
| dc.description | 10 pages, 2 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9702011 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9702011 | |
| dc.identifier | Phys.Rev.Lett.78:3640-3645,1997 | |
| dc.identifier | doi:10.1103/PhysRevLett.78.3640 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207375 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of the ZZγand ZγγCouplings in Z(νν)γProduction | |
| dc.type | text |