Fifteen angular distributions and three excitation curves for the reaction ${\mathrm{Be}}^9(p, p)$ have been obtained in the proton energy region between 200 and 3000 kev. Angular distributions for ${\mathrm{Be}}^9(p, d)$ and ${\mathrm{Be}}^9(p, \alpha )$ at 333 kev were also measured. The elastic scattering data have been analyzed and fitted in terms of the following states in ${\mathrm{B}}^{10}$; an $s$-wave $J=1^{-}$ state near 330-kev proton bombarding energy; a $p$-wave $J=2^{+}$ state near 980 kev; an $s$-wave $J=2^{-}$ state near 998 kev; a $p$-wave $J=0^{+}$ state near 1084 kev; and an $s$-wave $J=2^{-}$ state near 1330 kev.

• Received 9 July 1956

DOI:https://doi.org/10.1103/PhysRev.104.1386