NUCLEAR GROUND-STATE PROPERTIES OF NEUTRON-RICH CALCIUM ISOTOPES

被引：0
|
作者：
VERMEEREN, L
SILVERANS, RE
LIEVENS, P
KLEIN, A
NEUGART, R
SCHULZ, C
BUCHINGER, F
机构：
[1] KATHOLIEKE UNIV LEUVEN,VASTE STOF FYS MAGNETISME LAB,B-3001 LOUVAIN,BELGIUM
[2] CERN,ISOLDE COLLABORAT,DIV PPE,CH-1211 GENEVA 23,SWITZERLAND
[3] UNIV MAINZ,INST PHYS,W-6500 MAINZ,GERMANY
[4] MCGILL UNIV,FOSTER RADIAT LAB,MONTREAL H3A 2B2,PQ,CANADA
来源：
NUCLEI FAR FROM STABILITY/ATOMIC MASSES AND FUNDAMENTAL CONSTANTS 1992 | 1993年 / 132期
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Optical spectra of the Call transition 4s(2)S(1/2)-->4p(2)P(1/2) recorded for 9 isotopes (40 less than or equal to A less than or equal to 50) using collinear fast-beam spectroscopy with a very sensitive non-optical detection scheme. From the measured isotope shifts, values for mean square nuclear charge radii were deduced. The extension of the delta<r(2)> data to Ca-50 shows a distinct shell effect at N=28 with the same magnitude as for the isotonic stable chromium and iron nuclei, indicating a strong coupling between the p(3/2) neutrons and the core protons. From the obtained information on the hyperfine structure of the above-mentioned transition in Ca-49, a preliminary value for the nuclear magnetic moment of this nucleus was extracted (mu=-1.38(6)mu(n)), in perfect agreement with extended shell model calculations.
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页码：193 / 195
页数：3
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