Sign of the g factor of the 4{sub 1}{sup +} state in {sup 68}Zn
Journal Article
·
· Physical Review. C, Nuclear Physics
- Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903 (United States)
- Geology and Physics Department, University of Southern Indiana, Evansville, Indiana 47712 (United States)
- A. W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520 (United States)
- Department of Physics, University of Richmond, Richmond, Virginia 23173 (United States)
In two recent papers a negative g factor was reported for the 4{sub 1}{sup +} state in {sup 68}Zn. The negative sign is unexpected. It is not consistent with the systematics of g factors in the neighboring Zn and Ge isotopes and could not be explained by shell-model calculations even when significant contributions of the 0g{sub 9/2} neutrons were included. Therefore, an independent g factor measurement was performed, using {sup 68}Zn projectiles which were accelerated to a higher energy in order to obtain a higher yield for the 4{sub 1}{sup +} state. The new measurement yielded a positive g factor, g(4{sub 1}{sup +})=+0.6(3), which agrees with the results of full fp spherical shell model calculations, as well as with Z/A, the collective model prediction.
- OSTI ID:
- 20990993
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 75; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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