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T: Fachverband Teilchenphysik

T 32: Neutrino physics with accelerators

T 32.2: Vortrag

Dienstag, 31. März 2020, 17:15–17:30, H-HS XV

Status of the ESSνSB Target Station Design — •Tamer Tolba — Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

In the quest of the CP-violation in the leptonic sector, a crucial information obtained recently from reactor and accelerator experiments; demonstrating that the value of the third neutrino-mixing angle, θ₁₃, is higher than its previously defined standard value. In the light of this new finding, an urgent need raised to improve the detection sensitivity of the current long-baseline detectors, with a key modification to place the far detectors at the second, rather than the first, oscillation maximum. The European Spallation Source Neutrino Super Beam (ESSνSB) aims at searching for CP-violation in the leptonic sector, at 5σ significance level in more than 60% of the leptonic Dirac CP violating phase range, and measure the CP phase angle with high precision by setting the neutrino source-to-detector distance at the second oscillation maximum. Several technological challenges must be precisely studied and simulated before addressing the design of the ESSνSB detector. Among these, the finite element and physics simulations of the target station and the neutrino beam considered highest priority at this phase of the ESSνSB project. Here I will shed light on the current target station design physics and FEA simulation efforts of the ESSνSB WP4 group.