Precision mass measurement of Zn 61 and updated F t value for conserved vector current tests
Year: 2026
Type: article
Abstract: We report a high-precision mass measurement of Zn 61 , performed with the ISOLTRAP mass spectrometer at ISOLDE, CERN. Our result agrees with a recent measurement from the LEBIT Penning trap at FRIB and reduces the mass uncertainty by a factor of four. Combined with recent measurements of the mirror nuclide Ga 61 performed by TITAN at TRIUMF and CSRe at HIRFL, we obtain a more accurate Q value. This new value slightly improves the determination of the corresponding F t value in the T z = 1 / 2 mirror beta decays used to test the conserved vector current hypothesis in the standard model.
Source: Physical Review C
DOI: 10.1103/fbf3-nry6
Institutions: Universität Greifswald, Max Planck Institute for Nuclear Physics, Texas A&M University, GSI Helmholtz Centre for Heavy Ion Research, University of Cologne, Centre National de la Recherche Scientifique, Université Paris-Saclay, Institut National de Physique Nucléaire et de Physique des Particules, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, European Organization for Nuclear Research, Helsinki Institute of Physics, University of Jyväskylä
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Awards: G1077405606, G1874176281, Verbundprojekt 05P2015 - ISOLDE: Deutscher Beitrag zu ISOLDE und Weiterentwicklung von Kernstrukturmessmethoden am Massenspektrometer ISOLTRAP, European Nuclear Science and Application Research 2, Verbundprojekt 05P2021 - ISOLDE: Kernstrukturuntersuchungen mit atomphysikalischen Methoden an ISOLDE: Weiterentwicklung und Anwendung der Massenspektrometrie und Massenseparation kurzlebiger Nuklide für MATS @ FAIR (MS@ISOLDE), Verbundprojekt 05P2018 - ISOLDE: Kernstrukturuntersuchungen mit atomphysikalischen Methoden an ISOLDE: Weiterentwicklung und Anwendung der Massenspektrometrie und Massenseparation kurzlebiger Nuklide, G8988936500
OpenAlex ID: W7130423270