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Mass measurement of 45Cr and its impact on the Ca–Sc cycle in X-ray bursts

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Yan ,  X.L.
Institute of Modern Physics, Chinese Academy of Sciences;
Graduate University of Chinese Academy of Sciences;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30773

Litivnov,  Yuri
Institute of Modern Physics, Chinese Academy of Sciences;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
GSI Helmholtzzentrum für Schwerionenforschung;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30312

Blaum,  Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

Wang,  M.
Institute of Modern Physics, Chinese Academy of Sciences;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
CSNSM-IN2P3-CNRS, Université de Paris Sud;

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Citation

Yan, X., Xu, H., Litivnov, Y., Zhang, Y., Schatz, H., Tu, X., et al. (2013). Mass measurement of 45Cr and its impact on the Ca–Sc cycle in X-ray bursts. Astrophysical Journal, Letters, 766(1): L8, pp. 1-4. doi:10.1088/2041-8205/766/1/L8.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-C9C9-D
Abstract
Masses of neutron-deficient 58Ni projectile fragments have been measured at the HIRFL-CSR facility in Lanzhou, China employing the isochronous mass spectrometry technique. Masses of a series of short-lived Tz = –3/2 nuclides including the 45Cr nucleus have been measured with a relative uncertainty of about 10–6-10–7. The new 45Cr mass turned out to be essential for modeling the astrophysical rp-process. In particular, we find that the formation of the predicted Ca-Sc cycle in X-ray bursts can be excluded