Zhang, Chao (2011) Precision measurement of neutrino oscillation parameters and investigation of nuclear georeactor hypothesis with KamLAND. Dissertation (Ph.D.), California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:06102010-171034096
A combined analysis of examining the neutrino oscillation parameters and investigation of nuclear georeactor hypothesis with the KamLAND experiement is presented. With a total exposure of 2.75 kton-years, 930 anti-electron-neutrino candidate events above 3.4 MeV neutrino energy threshold were detected, with estimated 109±13 events from backgrounds. Assuming CPT invariance by combining with solar neutrino results, the best-fit value of georeactor fission power is 4.9^(+3.8)_(-4.8) TW. The 90% upper limit on the georeactor power is determined to be 11.2 TW. This result has put a significant constraint on the contribution of a possible georeactor to the total heat from the Earth. The best-fit values of the neutrino oscillation parameters, including the georeactor power as a free parameter, is consistent with KamLAND's previously published results with null-georeactor assumption.
|Item Type:||Thesis (Dissertation (Ph.D.))|
|Subject Keywords:||KamLAND; Georeactor; Neutrino Oscillation|
|Degree Grantor:||California Institute of Technology|
|Division:||Physics, Mathematics and Astronomy|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||10 June 2010|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Chao Zhang|
|Deposited On:||14 Sep 2010 21:14|
|Last Modified:||26 Dec 2012 04:29|
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