Effects of projectile resonances on the total, Coulomb, and nuclear breakup cross sections in the ${}^6\mathrm{Li}+{}^{152}\mathrm{Sm}$ reaction

In this paper we analyze the effects of the projectile resonances on the total, Coulomb, and nuclear breakup cross sections as well as on the Coulomb-nuclear interferences at different arbitrary incident energies. It is found that these resonances have non-negligible effects on the total, Coulomb, and nuclear breakup cross sections. Qualitatively, they have no effects on the constructiveness or destructiveness of the Coulomb-nuclear interferences. Quantitatively, we obtained that these resonances increase by 7.38%, 7.58%, and 20.30% the integrated total, Coulomb, and nuclear breakup cross sections, respectively at $E_{\mathrm{lab}}=35\mathrm{MeV}$. This shows that the nuclear breakup cross sections are more affected by the effects of the projectile resonances than their total and Coulomb breakup counterparts. We also obtain that the effects of the resonances on the total, Coulomb, and nuclear breakup cross sections decrease as the incident energy increases.

Figure 1

Resonance structure in the $\ell =2(j^{\pi }=1^{+},2^{+},3^{+})$ continuum states. The filled and open triangle experimental data points are taken from Ref. [34], and the solid circular data points are from Ref. [35].

Figure 2

Resonant and nonresonant differential total breakup cross sections at (a) $E_{\mathrm{lab}}=35\mathrm{MeV}$ and (b) $E_{\mathrm{lab}}=45\mathrm{MeV}$.

Figure 3

Resonant and nonresonant differential total breakup cross sections at (a) $E_{\mathrm{lab}}=50\mathrm{MeV}$ and (b) $E_{\mathrm{lab}}=60\mathrm{MeV}$.

Figure 4

Resonant and nonresonant differential Coulomb breakup cross sections at (a) $E_{\mathrm{lab}}=35\mathrm{MeV}$ and (b) $E_{\mathrm{lab}}=45\mathrm{MeV}$.

Figure 5

Resonant and nonresonant differential Coulomb breakup cross sections at (a) $E_{\mathrm{lab}}=50\mathrm{MeV}$, (b) $E_{\mathrm{lab}}=60\mathrm{MeV}$.

Figure 6

Resonant and nonresonant differential nuclear breakup cross sections at (a) $E_{\mathrm{lab}}=35\mathrm{MeV}$, (b) $E_{\mathrm{lab}}=35\mathrm{MeV}$.

Figure 7

Resonant and nonresonant differential nuclear breakup cross sections at (a) $E_{\mathrm{lab}}=50\mathrm{MeV}$, (b) $E_{\mathrm{lab}}=50\mathrm{MeV}$.

Figure 8

Resonant and nonresonant Coulomb-nuclear interferences for (a) $E_{\mathrm{lab}}=35\mathrm{MeV}$ and (b) $E_{\mathrm{lab}}=45\mathrm{MeV}$.

Figure 9

Resonant and nonresonant Coulomb-nuclear interferences for (a) $E_{\mathrm{lab}}=50\mathrm{MeV}$ and (b) $E_{\mathrm{lab}}=60\mathrm{MeV}$.