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Table 1: Optical potential parameters used in CRC analysis. All potentials have a Woods-Saxon derivative imaginary potential In a previous work [8], we have analyzed angular distributions of the of !°O(d,n)!’F and '6Q(d,p)!’0 peripheral tranfer reactions using DWBA, CCBA and CRC calculations and we have concluded that the CRC formalism describes very well these experimental data at foward angles. The optical potentials used in our analysis are listed in Table 1 and the spin-orbit contributions are V.)=6.0 MeV, r,,=1.4 fm and a,,=0.7 fm for the d+!°O system. For both n+!7F and p+!70 systems we have considered the values of V,,=5.5 MeV, r,,=1.25 fm and a,,=0.65 fm. For the p-n binding potential, V,,, a Gaussian form V,,(1)=- vo exp(r? /a’) with a=1.484 fm and vg=72.15 MeV was used. These parameters were chosen to reproduce the rms and binding energy of the deuteron (see figure 1.).

Table 1 Optical potential parameters used in CRC analysis. All potentials have a Woods-Saxon derivative imaginary potential In a previous work [8], we have analyzed angular distributions of the of !°O(d,n)!’F and '6Q(d,p)!’0 peripheral tranfer reactions using DWBA, CCBA and CRC calculations and we have concluded that the CRC formalism describes very well these experimental data at foward angles. The optical potentials used in our analysis are listed in Table 1 and the spin-orbit contributions are V.)=6.0 MeV, r,,=1.4 fm and a,,=0.7 fm for the d+!°O system. For both n+!7F and p+!70 systems we have considered the values of V,,=5.5 MeV, r,,=1.25 fm and a,,=0.65 fm. For the p-n binding potential, V,,, a Gaussian form V,,(1)=- vo exp(r? /a’) with a=1.484 fm and vg=72.15 MeV was used. These parameters were chosen to reproduce the rms and binding energy of the deuteron (see figure 1.).

Related Figures (4)

Figure 1: Experimental and calculated elastic angular distributions for d+!°O at Eg=2.85MeV Analysis of the !©O(d,p)'O and !°O(d,n)''F transfer reactions to determine astrophysical direct capture cross sections Marlete Assuncao
Figure 1: Experimental and calculated elastic angular distributions for d+!°O at Eg=2.85MeV Analysis of the !©O(d,p)'O and !°O(d,n)''F transfer reactions to determine astrophysical direct capture cross sections Marlete Assuncao
Figure 2: CRC calculations for the '6Q(d,n)!7F and (b) '6Q(d,p)!70 reactions for the ground (upper pannels) and first excited (lower pannels) states at 2.85 MeV, using the parameters list in Table 1). Experimental data were obtained by Dietzsch et al. [7]. Figure 2: CRC calculations for the *©Q(d,n)!/F and (b) ’O(d,p)'/O reactions for the ground (upper pannels)
Figure 2: CRC calculations for the '6Q(d,n)!7F and (b) '6Q(d,p)!70 reactions for the ground (upper pannels) and first excited (lower pannels) states at 2.85 MeV, using the parameters list in Table 1). Experimental data were obtained by Dietzsch et al. [7]. Figure 2: CRC calculations for the *©Q(d,n)!/F and (b) ’O(d,p)'/O reactions for the ground (upper pannels)
Table 2: Average spectroscopic factor (S) and ANC values range from CRC calculations.
Table 2: Average spectroscopic factor (S) and ANC values range from CRC calculations.
Analysis of the !©O(d,p)''O and !°O(d,n)''F transfer reactions to determine astrophysical direct capture cross sections Marlete Assuncao Figure 3: Astrophysical S- factor from !©O(d,n)!’F transfer reaction and (b) neutron capture cross section from '°O(d,p)!’0 transfer reaction performed by CRC analysis. The solid lines are our results and the dashed lines are error bands. The dotted line in (b) was obtained using the spectroscopic factor equal to one. The experimental data were obtained by Morlock et al. [15] and by Igashira et al.[9], respectively.
Analysis of the !©O(d,p)''O and !°O(d,n)''F transfer reactions to determine astrophysical direct capture cross sections Marlete Assuncao Figure 3: Astrophysical S- factor from !©O(d,n)!’F transfer reaction and (b) neutron capture cross section from '°O(d,p)!’0 transfer reaction performed by CRC analysis. The solid lines are our results and the dashed lines are error bands. The dotted line in (b) was obtained using the spectroscopic factor equal to one. The experimental data were obtained by Morlock et al. [15] and by Igashira et al.[9], respectively.
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