Speaker
Description
Tokai to Kamioka (T2K) is an accelerator long baseline experiment that measures the neutrino oscillation parameters by observing $\nu_\mu$ ($\bar{\nu}_\mu$) disappearance and $\nu_e$ ($\bar{\nu}_e$) appearance from a nearly pure $\nu_\mu$($\bar{\nu}_\mu$) beam. The experiment has both near and far detectors situated at 280 m and 295 km respectively from the beam production target. The far detector Super-Kamiokande (SK) where $\nu$ and $\bar{\nu}$ interact is a water Cherenkov detector. The dominant interactions at $\sim0.6$ GeV where T2K flux peaks are charged current quasi-elastic (CCQE) which result in single ring events. The next largest CC interaction at T2K energy is resonant 1$\pi$ production where the events will have multi-ring topology. The addition of CC $\nu_\mu1\pi^+$ samples to the T2K analysis is expected to improve the precision on $\sin^2\theta_{23}$ and $|\Delta{m^2_{32}}|$. A cut based selection study is used to select $\nu_\mu$CC $1\pi^+$ like events accumulated in neutrino enhanced beam operation. The details of this study will be presented in this poster.
| Collaboration | T2K |
|---|
