Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-03-26
Eur.Phys.J.C17:53-65,2000
Physics
High Energy Physics
High Energy Physics - Experiment
22 pages, 10 figures
Scientific paper
10.1007/s100520000434
The production of single photons has been studied in the reaction e+e- -> gamma + invisible particles at centre-of-mass energies of 183 GeV and 189 GeV. A previously published analysis of events with multi-photon final states accompanied by missing energy has been updated with 189 GeV data. The data were collected with the DELPHI detector and correspond to integrated luminosities of about 51 pb^{-1} and 158 pb^{-1} at the two energies. The number of light neutrino families is measured to be 2.84 +/- 0.15(stat) +/- 0.14(syst). The absence of an excess of events beyond that expected from Standard Model processes is used to set limits on new physics as described by supersymmetric and composite models. A limit on the gravitational scale is also determined.
Abreu P.
The DELPHI Collaboration
No associations
LandOfFree
Photon Events with Missing Energy at sqrt(s) = 183 to 189 GeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Photon Events with Missing Energy at sqrt(s) = 183 to 189 GeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photon Events with Missing Energy at sqrt(s) = 183 to 189 GeV will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-32929