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Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
T2K Collaboration, K. Abe, N. Abgrall +408
The T2K experiment observes indications of appearance in data accumulated with protons on target. Six events pass all selection criteria at…
Study of the K0(L) --> pi0 pi0 nu nu-bar decay
E391a Collaboration, R. Ogata, S. Suzuki +67
The rare decay K0(L) --> pi0 pi0 nu nu-bar was studied with the E391a detector at the KEK 12-GeV proton synchrotron. Based on 9.4 x 10^9 K0L decays, an upper limit of 8.1 x 10^{-7}…
Search for the decay
Y. C. Tung, Y. B. Hsiung, J. K. Ahn +66
We performed a search for the decay with the E391a detector at KEK. In the data accumulated in 2005, no event was observed in the signal region. Based on the…
Experimental study of the decay
The E391a Collaboration, J. K. Ahn
The first dedicated search for the rare neutral-kaon decay has been carried out in the E391a experiment at the KEK 12-GeV proton synchrotron. The final upper li…
Search for a light pseudoscalar particle in the decay
Y. C. Tung, Y. B. Hsiung, M. L. Wu +59
We performed a search for a light pseudoscalar particle in the decay , with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/ wa…
Measurement of the production cross-section of positive pions in the collision of 8.9 GeV/c protons on beryllium
HARP Collaboration
The double-differential production cross-section of positive pions, , measured in the HARP experiment is presented. The incident particles are 8.9 GeV/c protons…