Elastic and Inelastic Proton Scattering onSi29

High-resolution measurements of the differential cross section for elastic proton scattering on ${\mathrm{Si}}^{29}$ have been performed in the energy range $E_p=1.1-2.5\mathrm{}$ MeV, which corresponds to the range $E_X\left({\mathrm{P}}^{30}\right)=6.7-8.1\mathrm{}$ MeV. Twenty-four resonances were observed, including ten previously unreported resonances. For all but two resonances, the proton orbital momenta were determined, and, in many cases, unique spin assignments were made. Partial proton widths or strengths are given for all resonances. Five $1^{-}$ resonances were observed with the unusually large total $p$-wave reduced width ${{\theta }_p}^2=1.14\mathrm{}$ in the elastic channel. Similarly, four $2^{-}$ resonances appear with a total $p$-wave reduced width ${{\theta }_p}^2=0.68\mathrm{}$. For the $1^{-}$ resonances, both $p_{\frac{1}{2}}$ and $p_{\frac{3}{2}}$ elastic scattering contribute strongly. Two definite, and one probable, $4^{-}$ resonances were observed with a total $f$-wave reduced width ${{\theta }_p}^2=0.15\mathrm{}$. The yield of inelastically scattered protons from the first excited state of ${\mathrm{Si}}^{29}$ was measured in the energy range $E_p=1.9-2.5\mathrm{}$ MeV. Eleven resonances were observed, including three previously unreported resonances. The resonance strengths were measured relative to the known strength of the 1302-keV resonance in the ${\mathrm{Si}}^{29}(p, \gamma ){\mathrm{P}}^{30}$ reaction. For the resonances with known spin, the partial inelastic proton widths were obtained.