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Münster 2017 – scientific programme

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T: Fachverband Teilchenphysik

T 11: Neutrinophysik 1 (Neutrinomassen)

T 11.1: Group Report

Monday, March 27, 2017, 16:45–17:05, VSH 17

Status of the KATRIN Experiment — •Fabian Harms for the KATRIN collaboration — Karlsruhe Institute of Technology (KIT), Institute for Nuclear Physics (IKP)

The KArlsruhe TRItium Neutrino (KATRIN) Experiment is a large-scale experiment for the model independent determination of the effective mass of the electron-antineutrino with a sensitivity of 200 meV/c2 (90% C.L.). It investigates tritium β-decay close to the kinematic endpoint of the energy spectrum with a high-resolution electrostatic spectrometer (ΔE = 0.93 eV at 18.6 keV).

The KATRIN experimental setup consists of a high luminosity windowless gaseous tritium source (WGTS), a magnetic electron transport system with differential and cryogenic pumping for tritium retention, a series of two electrostatic spectrometers (pre-spectrometer and main spectrometer) for energy analysis, and a detector system based on a segmented silicon PIN diode detector for efficient counting of transmitted β-electrons.

With all main components on site at KIT, the experiment celebrated ’FirstLight’ on 14th October 2016 by successfully transmitting electrons through the 70-m long experimental setup. The talk will present the current status of the experiment and give an overview on the results of the recent FirstLight measurement campaign.

We acknowledge the support by KSETA, BMBF (05A14VK2), HAP and the Helmholtz association.

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