Improved mass measurements of nuclei around N=Z=34 for X-ray burst models
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  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.
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||Guénaut, C||Kwan, E||Kwiatkowski, AA||Morrissey, DJ||Pang, GK||Prinke, A||Ringle, R||Schatz, H||Schury, P||Schwarz, S||Sumithrarachchi, CS