Publications in Scientific Journals:
M. Klopf, E. Jericha, B. Märkisch, H. Saul, T. Soldner, H. Abele:
"Dark decay channel analysis (n→χ + e+ e−) with the PERKEO II experiment";
EPJ Web of Conferences,
219
(2019),
1
- 4.
English abstract:
Discrepancies from beam and bottle type experiments measuring the neutron lifetime are on the 4σ level. In recent publications Fornal and Grinstein proposed that the puzzle could be solved if the neutron would decay on the one percent level via a dark decay mode [1], one possible branch being n → χ + e+e−. With data from the Perkeo II experiment we set limits on the branching fraction and exclude a one percent contribution for 96% of the allowed mass range for the dark matter particle. With this publication, we give a detailed description of the experiment and some selected details of the analysis.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1051/epjconf/201921905007
Created from the Publication Database of the Vienna University of Technology.