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New β-delayed proton precursor 149Yb near the proton drip line

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Abstract.

The β-delayed proton precursor 149Yb was synthesized in the reaction 112Sn(40Ca, 3n) and identified by using a proton-gamma coincidence measurements in combination with a helium-jet fast tape transport system. Its β-delayed proton spectrum was observed. The half-life of 149Yb was determined to be 0.7±0.2 s. The 253, 101, and 365 keV γ transitions in 147Dy, following β-delayed proton emission of 148Ho decay, were reported for the first time.

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Authors and Affiliations

  1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, PRC, , , , , , CN

    S.-W. Xu, Z.-K. Li, Y.-X. **e, X.-D. Wang, B. Guo, C.-G. Leng & Y. Yu

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  1. S.-W. Xu
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  2. Z.-K. Li
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  3. Y.-X. **e
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  4. X.-D. Wang
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  5. B. Guo
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  6. C.-G. Leng
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  7. Y. Yu
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Received: 14 March 2001 / Accepted: 26 September 2001

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Xu, SW., Li, ZK., **e, YX. et al. New β-delayed proton precursor 149Yb near the proton drip line. Eur Phys J A 12, 1–4 (2001). https://doi.org/10.1007/s100500170032

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  • DOI: https://doi.org/10.1007/s100500170032

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