Particle Physics Seminar

"T2K recent results and future prospects"

Presented by Ciro Riccio

Thursday, December 15, 2022, 3:00 pm — Hybrid: Bldg. 510, Small Seminar Room

Abstract: T2K (Tokai to Kamioka) is a Japan based long-baseline neutrino oscillation experiment designed to measure (anti-)neutrino flavor oscillations. A neutrino beam peaked around 0.6 GeV is produced in Tokai and directed toward the water Cherenkov detector Super-Kamiokande, which is located 295 km away. A complex of near detectors is located at 280 m and is used to constrain the flux and cross-section uncertainties. In 2014, T2K has started a campaign to measure the phase δCP, an unknown element of the Pontecorvo-Maki-Nakagawa-Sakata matrix, that can provide a test of the violation or conservation of the CP symmetry in the lepton sector. To achieve this goal, T2K is taking data with a neutrino and antineutrino enhanced beam investigating asymmetries in the electron neutrino and antineutrino appearance probabilities. One of the largest systematic uncertainties affecting neutrino oscillation measurements comes from limited knowledge of (anti-)neutrino-nucleus interactions. The T2K experiment has a wide range of neutrino cross-section measurements using detectors in its near detector complex. In this seminar an overview of the latest T2K neutrino oscillation and cross-section measurements are presented as well as its future prospects, which are characterized by an intense program of upgrades.

Hosted by: Stefania Stucci

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