Difference in anomalous0g+→0g+(p,t) analyzing powers for the isotones and partial cross sections for spin up and down

Abstract

A drastic difference of anomalous ${0}_{g}^{+}\ensuremath{\rightarrow}{0}_{g}^{+}$ ($p$,$t$) analyzing powers on $^{92}\mathrm{Zr}$ and $^{94}\mathrm{Mo}$ is explained in terms of partial cross sections ${\ensuremath{\sigma}}_{{m}_{p}{m}_{t}}$ with ${m}_{p}={m}_{t}=\ifmmode\pm\else\textpm\fi{}\frac{1}{2}$. It results from ${\ensuremath{\sigma}}_{\ensuremath{-}\frac{1}{2}\ensuremath{-}\frac{1}{2}}\ensuremath{\approx}0$ only for $^{94}\mathrm{Mo}$ due to a completely destructive interference between the one-step and the two-step ($p$,$d$) ($d$,$t$) sequential process.NUCLEAR REACTIONS Vector analyzing power ${A}_{y}(\ensuremath{\theta})$ and partial cross sections ${\ensuremath{\sigma}}_{++}(\ensuremath{\theta})$ and ${\ensuremath{\sigma}}_{\ensuremath{-}\ensuremath{-}}(\ensuremath{\theta})$ for g.s. ($p$,$t$) on $^{92}\mathrm{Zr}$ and $^{94}\mathrm{Mo}$, ${E}_{p}=22$ MeV. First- and second-order DWBA.