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Bonn 2020 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 52: Neutrino physics without accelerators V

T 52.2: Vortrag

Mittwoch, 1. April 2020, 16:45–17:00, H-HS XIII

Detection Efficiency in Project 8 — •Christine Claessens for the Project 8 collaboration — JGU Mainz

The Project 8 collaboration aims to measure the absolute neutrino mass scale from the distortion of the tritium beta decay spectrum near the endpoint. To this end, the collaboration has successfully established Cyclotron Radiation Emission Spectroscopy (CRES), a frequency-based approach to detect electrons and determine their kinetic energy (Phys. Rev. Lett. 114, 162501). As we will extract the neutrino mass from the shape of the tritium spectrum, it is essential to quantify any dependence of the electron detection efficiency on frequency or energy. Incorporating this efficiency in our analysis is crucial for an accurate measurement of the endpoint and the extraction of the neutrino mass. In this contribution, I will demonstrate the influence of the detection efficiency and its integration in our analysis with the example of the first-ever tritium CRES spectrum.

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