M. Koga

Measurement of neutrino oscillation with KamLAND: Evidence of spectral distortion

We present results of a study of neutrino oscillation based on a 766 ton-year exposure of KamLAND to reactor anti-neutrinos. We observe 258 \nuebar\ candidate events with energies above 3.4 MeV compared to 365.2 events expected in the absence of neutrino oscillation. Accounting for 17.8 expected background events, the statistical significance for reactor \nuebar disappearance is 99.998%. The observed energy spectrum disagrees with the expected spectral shape in the absence of neutrino oscillation at 99.6% significance and prefers the distortion expected from \nuebar oscillation effects. A two-neutrino oscillation analysis of the KamLAND data gives \DeltaMSq = 7.9

Experimental investigation of geologically produced antineutrinos with KamLAND

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High sensitivity search for nu;e's from the sun and other sources at KamLAND.

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Measurement of the flux and zenith angle distribution of upward through going muons in Kamiokande II + III

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SEARCH FOR EXTRATERRESTRIAL ANTINEUTRINO SOURCES WITH THE KamLAND DETECTOR

. A global analysis of data from KamLAND and solar neutrino experiments yields \DeltaMSq = 7.9

The KamLAND Full-Volume Calibration System

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Search for the Invisible Decay of Neutrons with KamLAND

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A study on the eμ identification capability of a water Čerenkov detector and the atmospheric neutrino problem

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Results from KamLAND-Zen

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Search for double-beta decay of

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