Neutrino Oscillation with the T2K Experiment: Recent Results and Beyond
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I present the latest results (Feb 2014) from the Tokai-to-Kamioka (T2K)
long baseline neutrino oscillation experiment. At J-PARC, Japan’s newest particle
physics facility, 30 GeV protons are collided on a graphite target to produce a beam
of muon neutrinos with E = ~600 MeV. This beam is monitored and characterised by a
suite of detectors 280 meters away before being sent 295 km through the Earth’s
crust to the Super-Kamiokande detector. The full data set taken to date, consisting
of 6.57×10^20 protons on target, has been analysed for both nu_mu
disappearance and nu_e appearance. The disappearance analysis has produced a
new level of precision in measuring the neutrino mixing parameter theta_23. The
appearance analysis, in combination with reactor neutrino constraints of the
theta_13 mixing angle, introduces the first constraints on the Dirac
CP-violating phase delta. Finally, I conclude by presenting the future
sensitivity of T2K in various potential configuration modes.
This talk is part of the Cavendish HEP Seminars series.
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