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Latest Results of the KARMEN2 Experiment | | K. Eitel
; | | Date: |
2 Aug 2000 | | Journal: | Nucl.Phys.Proc.Suppl. 91 (2000) 191-197 | | Subject: | hep-ex | | Affiliation: | KARMEN collaboration | | Abstract: | The neutrino experiment KARMEN at the beam stop neutrino source ISIS investigates the oscillation channel numubar->nuebar in the appearance mode by looking for p(nuebar,e+)n reactions. An analysis of data collected from February 1997 through March 2000 with the KARMEN2 experimental setup reveals 11 candidate events in good agreement with the background expectation of 12.3+-0.6 events. Hence, there is no indication of an oscillation signal. A maximum likelihood analysis of the data leads to an upper limit (at 90% confidence level) for the mixing angle of sin^2(2theta) < 1.3x10^-3 at large Dm^2 and Dm^2 < 0.049 eV^2 for sin^2(2theta)=1. The anomaly in the time spectrum of events induced by nue and numubar seen in the KARMEN1 data could not be confirmed with the KARMEN2 data. | | Source: | arXiv, hep-ex/0008002 | | Services: | Forum | Review | PDF | Favorites | |
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