Polarized triton elastic scattering at 17 MeV

We present differential-cross-section and analyzing-power angular distributions for the elastic scattering of polarized tritons from 13 nuclei with $40\le A\le 208$. Data obtained at an energy of 17 MeV and in the angular range $20°\le \theta \le 160°$ are the basis for an optical-model analysis in which parameters which fit both observables simultaneously are determined. It is observed that the analyzing-power data delimit the real potential well parameters much more precisely than do cross-section data alone. Although the spin-orbit potential is less well defined, the average spin-orbit well depth is $V_{\mathrm{so}}=6.2\mathrm{}\pm 1.5$ MeV with geometry parameters similar to those for nucleons. The spin-orbit volume integrals are about a factor of 3 greater than predicted from simple folding models.

NUCLEAR REACTIONS ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$, ${}_{}{}^{46}{}_{}{}^{}\mathrm{Ti}$, ${}_{}{}^{48}{}_{}{}^{}\mathrm{Ti}$, ${}_{}{}^{54}{}_{}{}^{}\mathrm{Fe}$, ${}_{}{}^{56}{}_{}{}^{}\mathrm{Fe}$, ${}_{}{}^{58}{}_{}{}^{}\mathrm{Ni}$, ${}_{}{}^{60}{}_{}{}^{}\mathrm{Ni}$, ${}_{}{}^{68}{}_{}{}^{}\mathrm{Zn}$, ${}_{}{}^{90}{}_{}{}^{}\mathrm{Zr}$, ${}_{}{}^{94}{}_{}{}^{}\mathrm{Zr}$, ${}_{}{}^{116}{}_{}{}^{}\mathrm{Sn}$, ${}_{}{}^{140}{}_{}{}^{}\mathrm{Ce}$, ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ ($t$,$t$), $E=17\mathrm{}$ MeV; measured $\sigma \left(\theta \right)$, $A_y\left(\theta \right)$; optical-model analysis.