Study of the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$${}_{}{}^{*}{}_{}{}^{}\mathrm{}\left(3.56\right)\mathrm{}$)${}_{}{}^6{}_{}{}^{}\mathrm{Li}$${}_{}{}^{*}{}_{}{}^{}\mathrm{}\left(3.56\right)\mathrm{}$ and the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) ${}_{}{}^6{}_{}{}^{}\mathrm{Be}$ reactions

Angular distributions have been measured for the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$${}_{}{}^{*}{}_{}{}^{}\mathrm{}\left(3.56\right)\mathrm{}$)${}_{}{}^6{}_{}{}^{}\mathrm{Li}$${}_{}{}^{*}{}_{}{}^{}\mathrm{}\left(3.56\right)\mathrm{}$ and the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$)${}_{}{}^6{}_{}{}^{}\mathrm{Be}$ reactions at laboratory bombarding energies of 32 and 36 MeV, and excitation functions have been measured at 88° in the center of mass. All final-state nuclei are members of the same $T=1\mathrm{}$ isomultiplet and according to charge independence, the two reactions should have equal cross sections. Large differences in the cross sections of the two reactions are observed indicating that charge-dependent effects are important. For example at 32 MeV the ratio of the two cross sections, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}_{}^{*}{}_{}{}^{}$)${}_{}{}^6{}_{}{}^{}\mathrm{Li}_{}^{*}{}_{}{}^{}$/${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$)${}_{}{}^6{}_{}{}^{}\mathrm{Be}$, oscillates with angle, varying in magnitude from 0.17 to greater than 1.65.

[NUCLEAR REACTIONS ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}_{}^{*}{}_{}{}^{}$(3.56)), (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$), $E=28-36\mathrm{}$ MeV; measured $\sigma (E,\theta )$, $\theta =17-{90}^{\circ }$ c.m., $\Delta \theta =4^{\circ }$; Legendre polynomial expansion of $\sigma \left(\theta \right)$.]