Ground-state proton decay of 69Br and implications for the rp -process 68Se waiting-point
Conference
·
OSTI ID:1054980
- Argonne National Laboratory (ANL)
- ORNL
- Michigan State University, East Lansing
The first direct measurement of the proton separation energy, S p , for the proton-unbound nucleus 69Br is reported. Of interest is the exponential dependence of the 2 p-capture rate on S p which can bypass the 68Se waiting-point in the astrophysical rp process. An analysis of the observed proton decay spectrum is given in terms of the 69Se mirror nucleus and the influence of S p is explored within the context of a single-zone X-ray burst model.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1054980
- Country of Publication:
- United States
- Language:
- English
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