Title: First β-ν correlation measurement from the recoil-energy spectrum of Penning trapped 35Ar ions
Authors: Van Gorp, S ×
Breitenfeldt, M
Tandecki, M
Beck, M
Finlay, Paul
Friedag, P
Gluck, F
Herlert, A
Kozlov, V
Porobic, Tomica
Soti, G
Traykov, E
Wauters, F
Weinheimer, Ch
Zakoucky, D
Severijns, Nathal #
Issue Date: 20-Aug-2014
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:90 issue:2 pages:1-8
Article number: 025502
Abstract: We demonstrate a novel method to search for physics beyond the standard model by determining the β-ν angular
correlation from the recoil-ion energy distribution after β decay of ions stored in a Penning trap. This recoil-ion
energy distribution is measured with a retardation spectrometer. The unique combination of the spectrometer with a Penning trap provides a number of advantages, e.g., a high recoil-ion count rate and low sensitivity to the initial position and velocity distribution of the ions and completely different sources of systematic errors compared to other state-of-the-art experiments. Results of a first measurement with the isotope 35Ar are presented. Although
currently at limited precision, we show that a statistical precision of about 0.5% is achievable with this unique
method, thereby opening up the possibility of contributing to state-of-the-art searches for exotic currents in weak
ISSN: 0556-2813
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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