Inelastic electron scattering from 31P

Form factors for the electroexcitation of the $\text{3}\text{2}$⁺ (1.27 MeV), $\text{5}\text{2}$⁺ (2.23 MeV), and $\text{3}\text{2}$⁺ (3.51 MeV) states in ³¹P have been measured for momentum transfers from 0.36 to 0.80 fm^?1 at the NBS electron scattering facility. In addition, form factors for the 2.23 MeV state in the momentum transfer range 0.74 to 1.78 fm^?1 have been extracted from data obtained in a previous experiment. Using the DUELS distorted-wave code the B(E2, ω) ↓ were found to be 6.0 ± 0.9, 6.9 ± 0.3, and 2.7 ± 0.3 W.u. for the 1.27, 2.23, and 3.51 MeV states, respectively. The form factors for these states, calculated using wave functions derived in an intermediate-coupling vibrational calculation, are compared with the data.