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DATE: Jan. 10, 2019. 16:00-17:00

VENUE:
   2F meeting room, J-PARC Research Building (Main)
   Seminar Hall, Building #4, Tsukuba-campus
   Room 116, Tokai Building #1, Tokai-campus

TITLE: Updated results from the T2K experiment with 3.13x10^21 protons on target

LANGUAGE: English

SPEAKER: Dr. Megan Friend (KEK)

HOST: T. Nakadaira

CONTACT: S. Mihara, O. Morimatsu, K. Aoki (j-parc-pn-seminar-(AT)-ml.post.kek.jp)

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Abstract:

T2K is an accelerator-based long-baseline neutrino oscillation experiment which produces a high-intensity neutrino beam using the J-PARC accelerator and detects neutrino events before and after propagation to the Super-Kamiokande far detector. The T2K neutrino beamline can produce both muon neutrino and anti-neutrino beams, and T2K has the sensitivity to probe unknown phenomena, such as electron anti-neutrino appearance and CP violation in the lepton sector, using these beams.

In 2018, T2K reported an indication of CP violation at 2 sigma after collecting 2.62x10^21 protons on target (POT). Since then, additional anti-neutrino-mode beam data taken during March-May 2018 have been analyzed.

In this seminar, the results of neutrino oscillation measurements made with the T2K data collected so far (1.49x10^21 POT in neutrino-mode +1.63x10^21 POT in anti-neutrino-mode) will be presented. Future prospects of measurements using the J-PARC neutrino beam will also be shown.