Pion double charge exchange has been used to populate the double isobaric analog state (DIAS) in 208 Po with use of the doubly magic target 208 Pb. The DIAS was found at an excitation energy of 32.46 ±0.17 MeV with a width of 0.85 ±0.40 MeV. The excitation energy of the DIAS can be used along with the energy of the isobaric analog state to determine separately the linear and the quadratic terms of the isobaric-multiplet-mass equation. The resulting linear and quadratic terms are b= -31.6 ±3.7 MeV and c = 0.33 ±0.09 MeV, respectively.

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Measurements are reported of the difference AuL between proton-proton total cross sections for parallel and antiparallel spin states and of the parameter CLL for proton-proton elastic scattering near 90", for thirteen energies between 300 and 800 MeV. The AaL results agree well with previous ANL ZGS and SIN data, but disagree with recent results from TRIUMF. Attempts to understand the cause of the discrepancy have been unsuccessful, but possible sources are discussed. The AUL and CLL results have been used with other experimental data to extract quantities which depend only on spin-singlet, coupled spin-triplet, and spin-triplet partial waves. Structure is found in these quantities, which appears to be associated with the resonantlike 'D2 and 3F3 partial waves. Additional similar structure is also found, which may be due either to the 'Po partial wave or the ( 3~2 , 3~2 ) partial-wave pair.

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