Bochum 2018 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Fundamental Symmetries I

HK 11.3: Vortrag

Montag, 26. Februar 2018, 17:15–17:30, HZO 100

Current Status of the Proton Asymmetry Measurement with Perkeo III — •Christoph Roick¹, Michael Klopf², Lukas Raffelt^1,3, Heiko Saul^1,2, Wilfried Mach¹, Daniel Moser⁵, Gertrud Konrad⁵, Torsten Soldner⁴, Hartmut Abele², Ulrich Schmidt³, and Bastian Märkisch¹ — ¹Physik-Department der TU München — ²TU Wien, Atominstitut — ³Physikalisches Institut der Universität Heidelberg — ⁴Institut Laue-Langevin, Grenoble, Frankreich — ⁵Stefan-Meyer-Institut, Wien

We present the status of the data analysis of the recent measurement of the proton asymmetry in neutron beta decay with Perkeo III. This first direct measurement using a pulsed neutron beam and a proton retardation system will improve the first indirect measurement of the proton asymmetry, which has been performed with Perkeo II. Measuring the proton asymmetry allows searches for physics beyond axialvector and vector couplings of the Standard Model when combined with measurements of other correlation coefficients of neutron beta decay.