Mass measurements of very neutron-deficient Mo and Tc isotopes and their impact on rp process nucleosynthesis.

@article{Haettner2011MassMO,
  title={Mass measurements of very neutron-deficient Mo and Tc isotopes and their impact on rp process nucleosynthesis.},
  author={E. Haettner and D. Ackermann and G. Audi and K. Blaum and M. Block and S. Eliseev and T. Fleckenstein and F. Herfurth and F. Hessberger and S. Hofmann and J. Ketelaer and J. Ketter and H. Kluge and G. Marx and M. Mazzocco and Y. Novikov and W. Plass and S. Rahaman and T. Rauscher and D. Rodr{\'i}guez and H. Schatz and C. Scheidenberger and L. Schweikhard and B. Sun and P. Thirolf and G. Vorobjev and M. Wang and C. Weber},
  journal={Physical review letters},
  year={2011},
  volume={106 12},
  pages={
          122501
        }
}
  • E. Haettner, D. Ackermann, +25 authors C. Weber
  • Published 2011
  • Physics, Medicine
  • Physical review letters
  • The masses of ten proton-rich nuclides, including the N=Z+1 nuclides ⁸⁵Mo and ⁸⁷Tc, were measured with the Penning trap mass spectrometer SHIPTRAP. Compared to the Atomic Mass Evaluation 2003 a systematic shift of the mass surface by up to 1.6 MeV is observed causing significant abundance changes of the ashes of astrophysical x-ray bursts. Surprisingly low α separation energies for neutron-deficient Mo and Tc are found, making the formation of a ZrNb cycle in the rp process possible. Such a… CONTINUE READING
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