The reaction 14C(3He, n)16O and the coexistence model of 16O

doi:10.1016/0375-9474(81)90077-4

Nuclear Physics A

Volume 370, Issue 2, 9 November 1981, Pages 277-283

https://doi.org/10.1016/0375-9474(81)90077-4 Get rights and content

Abstract

The reaction ¹⁴C(³He, n)¹⁶O has been measured at a ³He bombarding energy of 25.4 MeV. The zero-degree differential cross section for the excitation of the three low lying 0⁺ T = 0 states, at energies 0.0, 6.05 and 12.05 MeV are, respectively, 1.33 ± 0.10, 0.49 ± 0.10, and 0.50 ± 0.10 mb/sr These measured cross sections are in rough agreement with single-step zero-range DWBA calculations using an empirically determined ¹⁴C ground state wave function and in which the Brown and Green coexistence-model wave functions are used to describe the ¹⁶O 0⁺ states. The angular distribution of the transition to the ground state is measured between 0° and 32°.

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Cited by (1)

Coexistence in even-mass nuclei
1992, Physics Reports
Shape coexistence in doubly even nuclei is reviewed. Two main theoretical approaches are presented. The first is essentially the shell model with the excitation of pairs of protons and/or neutrons across closed shells or subshells together with a residual proton-neutron interaction. The second is the deformed mean-field approach. The first is broadly defined so that it includes various truncation schemes to the shell model including generalized seniority and the interacting boson model. The presentation of the theory has two main aims: to provide a framework into which the majority of theoretical studies of shape coexistence can be placed and to provide a framework within which a unified view can be discussed. Selected experimental data are shown from ¹⁶O to ²³⁸U. Our criteria for selection emphasize detailed spectroscopic evidence (“fingerprints”) for coexisting shapes.

^∗: Work supported in part by the US Department of Energy.

^∗∗: Present address: Department of Physics, Colorado School of Mines, Golden, CO 80401, USA.

^∗∗∗∗: Present address: Physics Dept., University of North Carolina, Chapel Hill, NC 27514, USA.

^∗∗∗: Present address: Johns Hopkins University, Baltimore, MD 21205, USA.

^{∗∗∗∗∗}: Present address: Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.

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The reaction 14C(3He, n)16O and the coexistence model of 16O

Abstract

Nucl. Phys.

Nucl. Phys.

Phys. Lett.

Phys. Lett.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

Nucl. Phys.

The reaction ¹⁴C(³He, n)¹⁶O and the coexistence model of ¹⁶O