The reaction ${\mathrm{B}}^{11}({\mathrm{He}}^3, \alpha ){\mathrm{B}}^{10}$ has been studied using 15- and 16-MeV ${\mathrm{He}}^3$ particles and a broad-range spectrograph. Two new states of ${\mathrm{B}}^{10}$ have been located at $E_x=11.53\mathrm{}\pm 0.04 \mathrm{and} 12.56\pm 0.03$ MeV, with widths of 270±50 and 90±30 keV, respectively.

• Received 15 June 1967

DOI:https://doi.org/10.1103/PhysRev.162.1005