| ホーム > Precision electron-capture energy in$^{202}$Pb and its relevance for neutrino mass determination |
| Published Articles | |
| Title | Precision electron-capture energy in$^{202}$Pb and its relevance for neutrino mass determination |
| Author(s) | Welker, A (CERN ; Dresden, Tech. U.) ; Filianin, P (Heidelberg, Max Planck Inst. ; St. Petersburg, INP) ; Althubiti, N A S (Manchester U.) ; Atanasov, D (Heidelberg, Max Planck Inst.) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cocolios, T E (Manchester U. ; Leuven U.) ; Eliseev, S (Heidelberg, Max Planck Inst.) ; Herfurth, F (Darmstadt, GSI) ; Kreim, S (Heidelberg, Max Planck Inst.) ; Lunney, D (CSNSM, Orsay) ; Manea, V (CERN) ; Neidherr, D (Darmstadt, GSI) ; Novikov, Yu (Heidelberg, Max Planck Inst. ; St. Petersburg, INP ; St. Petersburg State U.) ; Rosenbusch, M (Greifswald U.) ; Schweikhard, L (Greifswald U.) ; Wienholtz, F (Greifswald U.) ; Wolf, R N (Heidelberg, Max Planck Inst. ; Sydney U.) ; Zuber, K (Dresden, Tech. U.) |
| Publication | 2017 |
| Number of pages | 4 |
| In: | Eur. Phys. J. A 53 (2017) 153 |
| DOI | 10.1140/epja/i2017-12345-y |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE |
| Abstract | Within the framework of an extensive programme devoted to the search for alternative candidates for the neutrino mass determination, the atomic mass difference between$^{202}$Pb and$^{202}$Tl has been measured with the Penning trap mass spectrometer ISOLTRAP at the ISOLDE facility at CERN. The obtained value $ Q_{{\rm EC}} = 38.8(43)$ keV is three times more precise than the AME2012 value. While it will probably not lead to a replacement of$^{163}$Ho in modern experiments on the determination of the electron-neutrino mass, the electron capture in$^{202}$Pb would however allow a determination of the electron-neutrino mass on the few-eV level using a cryogenic micro-calorimeter. |