J.B. Ball

Nuclear spectroscopy of the isotopes of Nb, Mo and Tc

Abstract Low-lying energy levels in isotopes of niobium, molybdenum and technecium arising from the coupling of protons in the 1 g 9 2 level and neutrons in the 2 d 5 2 level are calculated by the use of effective interactions. The required two-body residual interactions are deduced from the experimental data on 92Zr, 92Nb and 92Mo. A comparison with available experimental data shows good correspondence and indicates that the consideration of 90Zr as a core state is a reasonable assumption. The simple model serves as a good basis for interpretation of the levels observed in these isotopes.

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

Differential cross sections for elastic scattering of

Levels in 140,142,144Nd and a search for pairing vibrations at N = 82 with the (p, t) reaction

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The (d,3He) reaction on 126Te, 128Te and 130Te nuclei

C ions of 96 MeV,

Calculated energy levels for 89Y, 90Zr, 91Nb, 92Mo, 93Tc and 94Ru

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The 93Nb(d, p)94Nb reaction and the low-lying states of 94Nb

O ions of 129.5 and 192 MeV, and

Energy levels of 122,124Te populated by (3He, d) AND (p, t) reactions

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Energy levels in 48Cr observed in the 50Cr(p,t)48Cr reaction☆

Ne ions of 161.2 MeV from

Calculated energy levels for 92Mo and 94Ru

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The Oric High-Resolution Spectrograph Facility

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)