Measuring the Neutrino Mixing Angle Theta-13 with the Double Chooz Far Detector PDF Download

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Measuring the Neutrino Mixing Angle Theta-13 with the Double Chooz Far Detector

Measuring the Neutrino Mixing Angle Theta-13 with the Double Chooz Far Detector PDF Author: Igor Ostrovskiy
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 256

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Book Description
The neutrino mixing angle theta-13 is the last one which value is still unknown. This dissertation presents an analysis suggesting a non-zero value of the theta-13. The analysis is based on four months of data taken with the far Double Chooz reactor anti-neutrino detector. Using only rate information yields a best fit value of sin2(2theta-13) equal to 0.0934±0.0785 (1 sigma). Incorporating information on the shape of the signal energy spectrum in the analysis results in a best fit value of 0.0849±0.0509 (1 sigma). Based on frequentist studies, sin2(2theta-13)=0 is excluded at the 92.6% confidence level. The frequentist construction using delta chi-square as an ordering rule gives [0.0098, 0.1825] interval for sin2(2theta-13) at 90% C.L.