<p>We describe the measurement of muon neutrino disappearance due to</p><p>neutrino oscillation using the Tokai-2-Kamiokande (T2K) experiment's Run 1-4 (6.57×10<super>20</super> POT)</p><p>data set. We analyze the data using the conventional</p><p>Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing</p><p>matrix for the three Standard Model neutrinos. The output of the</p><p>analysis is a measurement of the parameters sin<super>2</super>θ<sub>23</sub>, Δm<super>2</super><sub>32</sub> for the normal hierarchy and sin<super>2</super>θ<sub>23</sub>, Δm<super>2</super><sub>13</sub> for</p><p>the inverted hierarchy. The best-fit oscillation</p><p>parameters for the normal hierarchy are found to be</p><p>(sin<super>2</super>θ<sub>23</sub>, Δm<super>2</super><sub>32</sub>) = ( 0.514, 2.51×10<super>-3</super> eV<super>2</super>/c<super>4</super>}). The 90% 1D confidence interval -- determined for both parameters</p><p>using the Feldman-Cousins procedure -- is for the normal hierarchy</p><p>0.428 < sin<super>2</super>θ<sub>23</sub> < 0.598 and</p><p>2.34×10<super>-3</super> eV<super>2</super>/c<super>4</super> < Δm<super>2</super><sub>32</sub> < 2.68\times10^{-3} eV<super>2</super>/c<super>4</super>. </p><p>For the inverted hierarchy, the best-fit oscillation parameters are</p><p>(sin<super>2</super>θ<sub>23</sub>, Δm<super>2</super><sub>13</sub>) = (0.511, 2.48×10<super>-3</super> eV<super>2</super>/c<super>4</super>. The 90\% 1D Feldman-Cousins confidence intervals for the inverted hierarchy are 2.31×10<super>-3</super> eV<super>2</super>/c<super>4</super> < \Delta m^2_{13} < 2.64×10<super>-3</super> eV<super>2</super>/c<super>4</super>.</p> / Dissertation
| Identifer | oai:union.ndltd.org:DUKE/oai:dukespace.lib.duke.edu:10161/8734 |
| Date | January 2014 |
| Creators | Wongjirad, Taritree |
| Contributors | Scholberg, Kate |
| Source Sets | Duke University |
| Detected Language | English |
| Type | Dissertation |
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