Low-energy behavior of $E2$ strength functions

Electric quadrupole strength functions have been deduced from averages of a large number of $E2$ transition strengths calculated within the shell model for the nuclides ${}^{94}\mathrm{Mo}$ and ${}^{95}\mathrm{Mo}$. These strength functions are at variance with phenomenological approximations as provided by the Reference Input Parameter Library RIPL-3 for calculations of reaction rates on the basis of the statistical model.

Figure 1

Average $B\left(E2\right)$ values in 100 keV bins of excitation energy calculated for positive-parity states in ${}^{94}\mathrm{Mo}$.

Figure 2

As Fig. 1, but for negative-parity states.

Figure 3

Average $B\left(E2\right)$ values in 100 keV bins of excitation energy calculated for positive-parity states in ${}^{95}\mathrm{Mo}$.

Figure 4

As in Fig. 1, but for negative-parity states.

Figure 5

Average $B\left(E2\right)$ values in 100 keV bins of transition energy calculated for positive-parity states in ${}^{94}\mathrm{Mo}$. The black dashed curve is a Gauss curve with parameters given in the text.

Figure 6

As in Fig. 5, but for negative-parity states.

Figure 7

Average $B\left(E2\right)$ values in 100 keV bins of transition energy calculated for positive-parity states in ${}^{95}\mathrm{Mo}$. The black dashed curve is a Gauss curve with parameters given in the text.

Figure 8

As Fig. 7, but for negative-parity states.

Figure 9

$E2$ strength function for ${}^{94}\mathrm{Mo}$ deduced from the present shell model calculations (blue line) and the $E2$ strength function according to the expression given in the RIPL handbook (black curve) [23].

Figure 10

As in Fig. 9, but for ${}^{95}\mathrm{Mo}$.