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Proton Drip-Line Calculations and the Rp-process | | B.A. Brown
; R.R.C. Clement
; W.A. Richter
; H. Schatz
; A. Volya
; | | Date: |
21 Dec 2001 | | Journal: | Phys.Rev. C65 (2002) 045802 | | Subject: | nucl-th | | Abstract: | One-proton and two-proton separation energies are calculated for proton-rich nuclei in the region $ A=41-75 $. The method is based on Skyrme Hartree-Fock calculations of Coulomb displacement energies of mirror nuclei in combination with the experimental masses of the neutron-rich nuclei. The implications for the proton drip line and the astrophysical rp-process are discussed. This is done within the framework of a detailed analysis of the sensitivity of rp process calculations in type I X-ray burst models on nuclear masses. We find that the remaining mass uncertainties, in particular for some nuclei with $N=Z$, still lead to large uncertainties in calculations of X-ray burst light curves. Further experimental or theoretical improvements of nuclear mass data are necessary before observed X-ray burst light curves can be used to obtain quantitative constraints on ignition conditions and neutron star properties. We identify a list of nuclei for which improved mass data would be most important. | | Source: | arXiv, nucl-th/0201053 | | Services: | Forum | Review | PDF | Favorites | |
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