Experimental study of ${}^{26}\mathrm{Al}$ through the $1n$ pick-up reaction ${}^{27}\mathrm{Al}(d,t)$

The ${}^{27}\mathrm{Al}\left(d,t\right)$ reaction has been studied to extract spectroscopic information for the odd-odd nucleus ${}^{26}\mathrm{Al}$. The excited states of ${}^{26}\mathrm{Al}$ up to 5.50 MeV have been analyzed using the local, zero range distorted wave Born approximation. A new set of optical model potential parameters was extracted from the measured elastic scattering angular distribution. The spectroscopic factors calculated for these states are found to be in good agreement with previously reported values for the same; they are also in agreement with those obtained from shell model predictions.

Figure 1

Typical two dimensional Si($E)$-Si($\Delta E$) spectrum of light charged particles obtained at ${\theta }_{\mathrm{lab}}$ = ${37}^{\circ }$ for $d$(25 MeV) + ${}^{27}\mathrm{Al}$ reaction.

Figure 2

Typical excitation energy spectrum of ${}^{26}\mathrm{Al}$ obtained in the reaction $d$(25 MeV) + ${}^{27}\mathrm{Al}$ at ${\theta }_{\mathrm{lab}}$ $\approx$ ${28}^{\circ }$ (solid line) and at ${\theta }_{\mathrm{lab}}$ $\approx$ ${38}^{\circ }$ (dashed line).

Figure 3

Angular distributions of elastically scattered deuteron from ${}^{27}\mathrm{Al}$ at $E_{\mathrm{lab}}$ = 25 MeV and 23 MeV. The filled circles represent experimental data, solid and dash-dash lines represent optical model fits for sets A and B, respectively.

Figure 4

Angular distributions for the ground and 1056 keV states. Filled circles are the present experimental data. Solid and dashed-dashed lines are theoretical predictions from dwuck4 code for pick up from ${0d}_{5/2}$ including finite range and non local corrections with sets A-A1 and A-B1, respectively.

Figure 5

Comparison of experimental and theoretical angular distributions for the ground, 230, 1056, 1762, and 1848 keV states. Filled circles are the present experimental data. Solid and dashed-dashed lines are theoretical predictions from dwuck4 code for pickup from ${0d}_{5/2}$ with set A-A1 and set A-B1, respectively.

Figure 6

Same as Fig. 5 for the 420 keV state. The upper plot (a), represents calculation for pick up from ${1s}_{1/2}$ and lower plot (b), represents calculation for pick up from ${0d}_{5/2}$.

Figure 7

Same as Fig. 5 for the 2070, 2367, 2542, 3160, and 3409 keV states for pick up from ${0d}_{5/2}$.

Figure 8

Same as Fig. 5 for the 3505 keV state for pick up from ${0g}_{9/2}$.

Figure 9

Same as Fig. 5 for the 4443 keV state for pick-up from ${0p}_{1/2}$.

Figure 10

Same as Fig. 5 for the 4719 keV state for pickup from ${0d}_{5/2}$.