Eur. Phys. J. A (2008) 35: 31-37
https://doi.org/10.1140/epja/i2007-10523-2

Regular Article - Experimental Physics

Mass measurements and evaluation around A = 22

¹ GSI, Planckstraße 1, 64291, Darmstadt, Germany
² Insitute of Physics, Johannes Gutenberg-University, 55099, Mainz, Germany
³ NSCL, Michigan State University, East Lansing, 48824-1321, MI, USA
⁴ Physics Department, CERN, 1211, Genève, Switzerland
⁵ TRIUMF, V6T 2A3, British Columbia, Canada
⁶ CSNSM-IN2P3-CNRS, 91405, Orsay-Campus, France
⁷ Institute of Physics, Ernst-Moritz-Arndt-University, 17487, Greifswald, Germany
⁸ Institute of Physics, Ruprecht-Karls-University, 69120, Heidelberg, Germany

^* e-mail: f.herfurth@gsi.de

Received: 15 May 2007
Accepted: 17 January 2008
Published online: 27 February 2008

Abstract

Frequency ratio measurements with different combinations of the singly charged ions from ^{21, 22, 23}Na , ^{22, 24}Mg , and ^{37, 39}K were performed at the on-line Penning trap mass spectrometer ISOLTRAP, CERN, Geneva. The masses and mass differences were deduced with a relative uncertainty of about or even below one part in 10⁸ for the ions of interest using a least-squares analysis of all measured relations. The results have direct consequences for weak-interaction study as they give additional input to the test of CVC, and for nuclear astrophysics, because they help to establish the minimum observable signal for a NeNa cycle in a nova burst. We report here about the measurements and the detailed evaluation.