Description
T2K (Tokai to Kamioka) is a long baseline neutrino oscillation experiment
that uses a pure, νμ or ¯νμ flux from the J-PARC accelerator,
sharply peaked around 0.6 GeV with the aim to precisely measure the
sin2 θ23, and Δm^2_{32} oscillation parameters as well as the CP-violating
phase factor, δCP . Within the latest analysis stages, many improvements
have been made to the T2K oscillation analysis, including an
updated interaction and flux model, and a new far-detector sample for
higher energy νμ interactions. This poster introduces the details about
one of the three oscillation analysis frameworks operating at T2K,
VALOR, a fitting framework utilising an experiment agnostic software
development kit. With this we perform a well validated, marginal
log-likelihood analysis, and are able to present frequentist confidence
intervals on oscillation parameters within the 3-flavour paradigm.
| Collaboration | T2K |
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