E.E. Gross

Heavy ion elastic scattering survey: (I). 208Pb target☆

Differential cross sections for elastic scattering of

Heavy-ion elastic scattering (II). 142 MeV 16O on 28Si, 59Co and 60Ni

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Energy dependence of the elastic scattering and polarization of protons on 40Ca

C ions of 96 MeV,

194Pt(12C, 12C′) reaction and the triaxial-rotor model

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Transverse focusing for a broad-range spectrograph

O ions of 129.5 and 192 MeV, and

Charge-symmetry study with the reactions 2H(t, τ)nn and 2H(τ, t)pp

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Nuclear reorientation effects for the 26Mg, 28Si(12C, 12C′) reactions at E = 41 MeV

Ne ions of 161.2 MeV from

Polarized-proton scattering facility at the Oak Ridge isochronous cyclotron☆

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A trajectory detector for the measurement of short lived activity by decay in flight

Pb were measured and analyzed using the optical model. Values of the real potential near the strong absorption radii were extracted and some constraints put on its slope. Some information on the slope of the imaginary potential in this region was also obtained, while the magnitude of the imaginary potential here was found to be comparable to that for the real potential. The scattering was found to be almost completely insensitive to the real or imaginary potential for center-of-mass separations less than approximately 10 fm. In addition to Woods--Saxon potentials, folded-model potentials were also used, and a consistent description of the present and other data was obtained with a Gaussian nucleon--nucleon interaction. It was found that a nucleon--nucleon interaction with a range as long as that for one-pion-exchange is unacceptable. (NL)

Calibration of an analyzing magnet using an α-source and heavy-ion beams

Abstract The elastic scattering of 141.9 MeV 16 O from targets of 28 Si, 59 Co and 60 Ni has been studied using the oxygen beam from the Oak Ridge Isochronous Cyclotron (ORIC). Elastic angular distributions were measured in angular steps of about 0.7° (c.m.) from about 10 (c.m.) to angles such that σ / σ R ≈ 10 −5 . Inelastic scattering angular distributions for populating the 2 + (1.77 MeV) and 4 + (4.6 MeV) excited states in 28 Si and the 2 + (1.33 MeV) excited state of 60 Ni were measured in the same angular steps from 10° to about 48° (c.m.). The elastic scattering data were analyzed with the nuclear optical model, using various prescriptions for the radial shape of the potential : the Woods-Saxon form, the proximity form, and a folding-model form. Good fits were obtained with all three forms. The importance of knowing the absolute magnitude of the cross sections and of having accurate data in the region where the cross section oscillates about the Rutherford value are re-emphasized. A comparison of the 59 Co (J π = 7 2 − ) and 60 Ni (J π = 0 + ) angular distributions shows that the uncertainties are too large to reveal evidence for a target-spin (or quadrupole) effect of the magnitude expected. The optical model fits to the present data are shown to fit data at other energies for targets of 28 Si and 60 Ni. The 2 + inelastic cross sections are in reasonable agreement with DWBA predictions.