Journal article

Publication year: 2008

Journal: Physical Review C

Volume number: 78

Issue number: 5

ISSN: 0556-2813

eISSN: 1089-490X

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevC.78.054310

Publisher: American Physical Society

Abstract: 
The masses of very neutron-deficient nuclides close to the astrophysical r p- and nu p-process paths have been determined with the Penning trap facilities JYFLTRAP at JYFL/Jyvaskyla and SHIPTRAP at GSI/Darmstadt. Isotopes from yttrium (Z=39) to palladium (Z=46) have been produced in heavy-ion fusion-evaporation reactions. In total, 21 nuclides were studied, and almost half of the mass values were experimentally determined for the first time: Tc-88, Ru90-92, Rh92-94, and Pd-94,Pd-95. For the Pd-95(m), (21/2(+)) high-spin state, a first direct mass determination was performed. Relative mass uncertainties of typically delta m/m=5x10(-8) were obtained. The impact of the new mass values has been studied in nu p-process nucleosynthesis calculations. The resulting reaction flow and the final abundances are compared with those obtained with the data of the Atomic Mass Evaluation 2003.

Harvard Citation style: Weber, C., Elomaa, V., Ferrer, R., Froehlich, C., Ackermann, D., Aystoe, J., et al. (2008) Mass measurements in the vicinity of the r p-process and the ν p-process paths with the Penning trap facilities JYFLTRAP and SHIPTRAP, Physical Review C, 78(5), Article 054310. https://doi.org/10.1103/PhysRevC.78.054310

APA Citation style: Weber, C., Elomaa, V., Ferrer, R., Froehlich, C., Ackermann, D., Aystoe, J., Audi, G., Batist, L., Blaum, K., Block, M., Chaudhuri, A., Dworschak, M., Eliseev, S., Eronen, T., Hager, U., Hakala, J., Herfurth, F., Hessberger, F., Hofmann, S., ...Vorobjev, G. (2008). Mass measurements in the vicinity of the r p-process and the ν p-process paths with the Penning trap facilities JYFLTRAP and SHIPTRAP. Physical Review C. 78(5), Article 054310. https://doi.org/10.1103/PhysRevC.78.054310