Improved mass measurements of nuclei around N=Z=34 for X-ray burst models Conference Paper uri icon


  • Mass measurements of N Z nuclei are important for the study of symmetries in nuclear structure, modeling of element synthesis in the rp-process, and fundamental interaction tests. High precision mass measurements of 68Se, 70Se, 70mBr, and 71Br were performed at the Low Energy Beam and Ion Trap Facility (LEBIT) [1,2, 3,4] by Penning trap mass spectrometry of thermalized rare isotopes produced by fast-beam fragmentation. The new Q-values obtained from this data and the (p,) reaction rates from [5] allowed new calculations of the reverse (, p) reaction rates through detailed balance. The impact of our new measurements was shown by varying the Q-values within their uncertainties, recalculating the reverse reaction rates, and running rp-process network calculations. Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlikeLicence.

published proceedings

  • Proceedings of Science

author list (cited authors)

  • Savory, J., Bachelet, C., Block, M., Bollen, G., Facina, M., Folden, C. M., ... Sumithrarachchi, C. S.

complete list of authors

  • Savory, J||Bachelet, C||Block, M||Bollen, G||Facina, M||Folden, CM||GuĂ©naut, C||Kwan, E||Kwiatkowski, AA||Morrissey, DJ||Pang, GK||Prinke, A||Ringle, R||Schatz, H||Schury, P||Schwarz, S||Sumithrarachchi, CS

publication date

  • December 2008