| Budget Amount *help |
¥167,830,000 (Direct Cost: ¥129,100,000、Indirect Cost: ¥38,730,000)
Fiscal Year 2016: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2015: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥91,910,000 (Direct Cost: ¥70,700,000、Indirect Cost: ¥21,210,000)
Fiscal Year 2013: ¥66,950,000 (Direct Cost: ¥51,500,000、Indirect Cost: ¥15,450,000)
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| Outline of Final Research Achievements |
KamLAND-Zen experiment is testing the Majorana nature of neutrinos, that is the equivalence of the particle and anti-particle, by using 136Xe nuclei. In this study a balloon holding the Xe-loaded liquid scintillator at the detector center was replaced with a much cleaner and double-volume one, and reconstruction was made on the outer part of the detector. In addition the background events were cleared and the most stringent constraint was given to the Majonara nature of neutrinos. However, leaks were found on the installed balloon and it was decided to terminate the study and restart it in a newly accepted program.
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