Determination of the Static Quadrupole Moment of the First2+Excited State inCe142

Coulomb excitation of the first $2^{+}$ state in ${}_{}{}^{142}{}_{}{}^{}\mathrm{Ce}$ was produced by 42-MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ ions. The static quadrupole moment of the first $2^{+}$ excited state and the $B(E2, 0^{+}\to 2^{+})$ were determined. The values were $-0.12\mathrm{}\pm 0.09 e$ b and $0.459\pm 0.006 e^2$ ${\mathrm{b}}^2$, respectively.