Supernova electron capture rates on odd-odd nuclei - INSPIRE

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Supernova electron capture rates on odd-odd nuclei

K. Langanke
(
- Aarhus U.
)
,
G. Martinez-Pinedo
(
- Aarhus U.
)

Sep, 1998

5 pages

Published in:

Phys.Lett.B 453 (1999) 187-193

e-Print:

nucl-th/9809082 [nucl-th]

DOI:

10.1016/S0370-2693(99)00363-9

View in:

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Abstract:

At densities between 10^8 and 10^10} g/cm^3 electron capture in a presupernova collapse is believed to mainly occur on odd-odd nuclei. We have derived the rates for six of the most important electron capturing nuclei, {54,56,58}Mn and {56,58,60}Co, based on calculations of the Gamow-Teller strength distributions for the ground states and first excited states. These calculations have been performed by shell model diagonalization in the pf shell using a recently modified version of the KB3 interaction. The shell model rates are noticeably smaller than the presently adopted rates as the latter have been derived by placing the Gamow-Teller (GT) resonance at too low excitation energies.

Note:

5 pages, 3 figures, RevTeX 3.1, submitted to Phys. Lett. B

References(27)

Figures(0)

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