Neutron total cross sections and resonance parameters ofCu2963andCu2965. I

High resolution neutron total cross sections of the isotopes of copper have been measured from about 10 to 150 keV using 5 nsec electron pulses and a flight path of 78.2 m. From the area and shape analysis of the transmission and total cross section data, precise values of the resonance parameters, such as $E_0$, ${\Gamma }_n^0$, ${\Gamma }_n^1$, $J^{\pi }$, etc., have been determined. For example, for ${}_{}{}^{63}{}_{}{}^{}\mathrm{Cu}$ many $s$-wave resonances have been observed from 10 to 150 keV giving values of ${〈D〉}_{J=1\mathrm{}}=(2.7\mathrm{}\pm 0.3)$ keV, ${〈D〉}_{J=2\mathrm{}}=(4.0\mathrm{}\pm 0.5)$ keV, ${〈D〉}_{J=1+2\mathrm{}}=(1.63\mathrm{}\pm 0.13)$ keV, $S_{0J=1}=(3.0\mathrm{}\pm 0.6)\times {10}^{-4\mathrm{}}$ e${\mathrm{V}}^{-\mathrm{½}}$, $S_{0J=2}=(2.0\mathrm{}\pm 0.5)\times {10}^{-4\mathrm{}}$ e${\mathrm{V}}^{-\mathrm{½}}$, $S_{0J=1,2}=(2.5\mathrm{}\pm 0.4)\times {10}^{-4\mathrm{}}$ e${\mathrm{V}}^{-\mathrm{½}}$. For ${}_{}{}^{65}{}_{}{}^{}\mathrm{Cu}$ $s$-wave resonances were observed giving values of ${〈D〉}_{J=1\mathrm{}}=(3.6\mathrm{}\pm 0.4)$ keV, ${〈D〉}_{J=2\mathrm{}}=(5.0\mathrm{}\pm 0.7)$ keV, ${〈D〉}_{J=1+2\mathrm{}}=(2.12\mathrm{}\pm 0.19)$ keV, $S_{0J=1}=(2.9\mathrm{}\pm 0.6)\times {10}^{-4\mathrm{}}$ e${\mathrm{V}}^{-\mathrm{½}}$,