A study of proton hole states in 1f72 Nuclei by the (p, 2p) reaction at 46 MeV

doi:10.1016/0375-9474(70)90834-1

Nuclear Physics A

Volume 152, Issue 2, 31 August 1970, Pages 337-343

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Abstract

Proton hole states in the $1 f_{72}$ nuclei ⁴⁶Ti, ⁵⁴Fe, ⁵⁶Fe, ⁵⁸Ni and ⁶⁰Ni have been studied using the (p, 2p) reaction with 46 MeV protons. The measured binding energies and angular correlations are consistent with the binding energies and orbital angular momentum assignments $(1 f_{72}, 2 s_{12} and 1 d_{32})$ obtained from proton pick-up reactions.

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Cited by (5)

Study of the (p, pn) reaction in light nuclei
1977, Nuclear Physics, Section A
The (p, pn) reaction on ²H, ⁶Li, ⁷Li, ⁹Be has been studied at 47 MeV bombarding energy. Excitation energy spectra and energy sharing spectra are presented. Fragmentary information on ¹⁰B, ¹¹B and ¹²C was also obtained. Sequential decay contributions to the ⁶Li(p, pn)⁵Li^∗ reaction suggest an admixture of parentage $(α)π(p_{12})π(d_{52})$ for the (3⁻), 23 MeV excited state of ⁶Be. A possible 15.5 MeV excited state in ⁶Be is reported. An extensive study of the ⁹Be (p, pn)⁸Be reaction for 45 MeV protons was made. Results for θ_p = θ_n = 25°, 30°, 35°, 40°, 45°, 55°, 65°; θ_n = 40°, θ_p = 25°, 30°, 35°, 40°, 45°, 55°, 65°; θ_p/θ_n = 40°/45°, 38.5° are reported and compared to DWIA calculations. Agreement is good when the lower momentum components of the wave function are sampled, and deteriorates as higher momenta are required. Results are in agreement with the Cohen and Kurath spectroscopic factors for ⁹Be.
Microscopic calculation of cross sections for the reactions 12C(p, 2p) and 16O(p, 2p)
1972, Nuclear Physics, Section A
Cross sections for the reactions ¹²C(p, 2p) and ¹⁶O(p, 2p) have been calculated in the framework of a model which takes explicit account of nucleon-nucleon correlations and of the decay of the residual nucleus by particle emission. The calculations are performed in the planewave impulse approximation and are based on the relation between the (p, 2p) cross section and the energy-momentum spectral function of the target nucleus. The spectral function is determined in terms of the mass operator which is computed up to second order in a shellmodel space including both bound and continuous single-particle states. The two-body interaction is assumed to be a spin-dependent zero-range force. Ground state correlations in the target nucleus are neglected. The calculated (unaveraged) separation-energy spectra exhibit isolated resonances with widths up to several hundred keV. The strength of the 1s and 1p hole states is distributed over a wide range of energies. The results indicate the importance of including ground-state correlations for the discrete part of the hole spectrum. The approximations used in the calculation and possible improvements are discussed.
A study of the reactions 16O(p, 2p) 15N, 12C(p, 2p) 11B at 50 MeV
1971, Physics Letters B
Search for the double-direct (p,2p) reaction at 17 MeV
1977, Physical Review C
Observability of nuclear rearrangement and choices of single-particle potentials
1972, Physical Review C

^†: Work supported in part by the U.S. Atomic Energy Commission Contract AT(04-3)-136.

^††: Work supported in part by the U.S. Atomic Energy Commission Contract AT(11-1)-34.

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Nuclear Physics A

Abstract

References (6)

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Cited by (5)

Study of the (p, pn) reaction in light nuclei

Microscopic calculation of cross sections for the reactions <sup>12</sup>C(p, 2p) and <sup>16</sup>O(p, 2p)

A study of the reactions <sup>16</sup>O(p, 2p) <sup>15</sup>N, <sup>12</sup>C(p, 2p) <sup>11</sup>B at 50 MeV

Search for the double-direct (p,2p) reaction at 17 MeV

Observability of nuclear rearrangement and choices of single-particle potentials