Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations
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, Journal Article
Reiter, MP; Ayet San Andrés, S; Nikas, S; Lippuner, J; Andreoiu, C; Babcock, C; Barquest, BR; Bollig, J; Brunner, T; Dickel, T; Dilling, J ...
Published in: Physical Review C
February 1, 2020
We report mass measurements of neutron-rich Ga isotopes Ga80-85 with TRIUMF's Ion Trap for Atomic and Nuclear science. The measurements determine the masses of Ga80-83 in good agreement with previous measurements. The masses of Ga84 and Ga85 were measured for the first time. Uncertainties between 25 and 48 keV were reached. The new mass values reduce the nuclear uncertainties associated with the production of A≈84 isotopes by the r-process for astrophysical conditions that might be consistent with a binary neutron star (BNS) merger producing a blue kilonova. Our nucleosynthesis simulations confirm that BNS merger may contribute to the first abundance peak under moderate neutron-rich conditions with electron fractions Ye=0.35-0.38.
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Published In
Physical Review C
DOI
EISSN
2469-9993
ISSN
2469-9985
Publication Date
February 1, 2020
Volume
101
Issue
2
Citation
APA
Chicago
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Reiter, M. P., Ayet San Andrés, S., Nikas, S., Lippuner, J., Andreoiu, C., Babcock, C., … Welch, D. (2020). Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations. Physical Review C, 101(2). https://doi.org/10.1103/PhysRevC.101.025803
Reiter, M. P., S. Ayet San Andrés, S. Nikas, J. Lippuner, C. Andreoiu, C. Babcock, B. R. Barquest, et al. “Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations.” Physical Review C 101, no. 2 (February 1, 2020). https://doi.org/10.1103/PhysRevC.101.025803.
Reiter MP, Ayet San Andrés S, Nikas S, Lippuner J, Andreoiu C, Babcock C, et al. Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations. Physical Review C. 2020 Feb 1;101(2).
Reiter, M. P., et al. “Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations.” Physical Review C, vol. 101, no. 2, Feb. 2020. Scopus, doi:10.1103/PhysRevC.101.025803.
Reiter MP, Ayet San Andrés S, Nikas S, Lippuner J, Andreoiu C, Babcock C, Barquest BR, Bollig J, Brunner T, Dickel T, Dilling J, Dillmann I, Dunling E, Gwinner G, Graham L, Hornung C, Klawitter R, Kootte B, Kwiatkowski AA, Lan Y, Lascar D, Leach KG, Leistenschneider E, Martínez-Pinedo G, McKay JE, Paul SF, Plaß WR, Roberts L, Schatz H, Scheidenberger C, Sieverding A, Steinbrügge R, Thompson R, Wieser ME, Will C, Welch D. Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r -process abundance peak in neutron-star merger calculations. Physical Review C. 2020 Feb 1;101(2).
Published In
Physical Review C
DOI
EISSN
2469-9993
ISSN
2469-9985
Publication Date
February 1, 2020
Volume
101
Issue
2