SHELL (DEFORMATION) EFFECT IN NUCLEAR CHARGE RADIUS

ZENG Jin-Yan (C. Y. Tseng)

Chinese Physics C> 1983, Vol. 7> Issue(1) : 101-108

SHELL (DEFORMATION) EFFECT IN NUCLEAR CHARGE RADIUS

ZENG Jin-Yan (C. Y. Tseng) ^,

Department of Physics, Peking University

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Abstract：
It is shown that without exception the observed rms charge radius constants of strongly deformed nuclei, rp's, are a little larger than those of the neighbouring spherical nuclei. The local variations among the charge radii of the sequence of isotopes, the in complete neutron shells [1p_3/2(N~3—6), 1d_5/2(N~9—14), 1f_7/2(N~20—28), 1g_9/2(N~40—50), 1h_11/2(N~70—82)], display some peculiar behaviors (eg. rms cnarge radii decrease with increasing A) which are sharply conflicting with the traditional A^1/3law. Taking the deformation effect into account, these strange variations can be accounted for with the Z^1/3-law.

References

[1]

曾谨言, 物理学报, 24(1915), 151.[2] C. Y. Tseng and F. C. Pang, Scientia Sinica, Series A, 25(1982), 186; see also Proc. Int. Conf.On Nuclear Physics, Aug., 1980, Berkeley, California, p. 172. [3] A. Bohr and B. R. Mottelson, Nuclear Structure, Val. 1(1969), p. 163.[4] K. Kumar, Phys. Rev. Lett., 28(1972), 249.[5] B. R. Mottelson, Nobel Lectrrw, 1971. Nordita Publications, NO 632. p. 101.[6] Proc of the Ioternational Discussion Meetivg "What do we know about the radial shape of nuclei in the Ca-region? Karlsruhe, Germany, 1979.[7] F.Trager, Zeit. Phyaik, A299(1981), 33.[8] X.Campi, in Roc. of the International Discussion Meeting "What do we know about the radial shape of nuclei in the Ca-reeion?'' Karleruhe, Germany, 1979.[9] B. S. Reshal and R. A. Sorenson, Nucl. Phys., A161(1971), 385.[10] H. Gerkardt et al.. Zeit. Physik. A292(1979). 7.

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ZENG Jin-Yan (C. Y. Tseng). SHELL (DEFORMATION) EFFECT IN NUCLEAR CHARGE RADIUS[J]. Chinese Physics C, 1983, 7(1): 101-108.

ZENG Jin-Yan (C. Y. Tseng). SHELL (DEFORMATION) EFFECT IN NUCLEAR CHARGE RADIUS[J]. Chinese Physics C, 1983, 7(1): 101-108. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

SHELL (DEFORMATION) EFFECT IN NUCLEAR CHARGE RADIUS

ZENG Jin-Yan (C. Y. Tseng) ^,

Corresponding author: ZENG Jin-Yan (C. Y. Tseng),

Department of Physics, Peking University

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-02-05

Abstract: It is shown that without exception the observed rms charge radius constants of strongly deformed nuclei, rp's, are a little larger than those of the neighbouring spherical nuclei. The local variations among the charge radii of the sequence of isotopes, the in complete neutron shells [1p_3/2(N~3—6), 1d_5/2(N~9—14), 1f_7/2(N~20—28), 1g_9/2(N~40—50), 1h_11/2(N~70—82)], display some peculiar behaviors (eg. rms cnarge radii decrease with increasing A) which are sharply conflicting with the traditional A^1/3law. Taking the deformation effect into account, these strange variations can be accounted for with the Z^1/3-law.