Isospin purity of T =1 measurements in the A =38 nuclei studied via lifetime measurements in 38 K
Isospin purity of T =1 measurements in the A =38 nuclei studied via lifetime measurements in 38 K
复制标题
通过 38 K 寿命测量研究 A = 38 个原子核中 T = 1 测量的同位旋纯度
DOI：
10.1103/physrevc.75.014309
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发表时间：
2007
影响因子：
3.1
通讯作者：
G. Hammond
中科院分区：
文献类型：
--
作者：
F. Estévez;A. Bruce;M. Taylor;H. Amro;C. Beausang;R. Casten;J. Ressler;C. Barton;C. Chandler;G. Hammond
The Doppler Shift Attenuation Method was used to measure lifetimes for levels in {sup 38}K at excitation energies of 1698, 2404, 2830, 2996, and 3671 keV, populated using the {sup 40}Ca(d, {alpha}){sup 38}K reaction at a beam energy of 4.5 MeV. Values of 109(29), 95(22), 457(63), 130(40), and 160(50) fs, respectively, were measured and are compared with previous values obtained using different stopping powers. The matrix element for the transition between the J{sup {pi}}=2{sub T=1}{sup +} and 0{sub T=1}{sup +} states in this T{sub z}=0 nucleus is compared with the analogous transition in the other nuclei in the T=1 triplet, {sup 38}Ca (T{sub z}=-1) and {sup 38}Ar (T{sub z}=+1), and with the results of shell-model calculations.
The Doppler Shift Attenuation Method was used to measure lifetimes for levels in {sup 38}K at excitation energies of 1698, 2404, 2830, 2996, and 3671 keV, populated using the {sup 40}Ca(d, {alpha}){sup 38}K reaction at a beam energy of 4.5 MeV. Values of 109(29), 95(22), 457(63), 130(40), and 160(50) fs, respectively, were measured and are compared with previous values obtained using different stopping powers. The matrix element for the transition between the J{sup {pi}}=2{sub T=1}{sup +} and 0{sub T=1}{sup +} states in this T{sub z}=0 nucleus is compared with the analogous transition in the other nuclei in the T=1 triplet, {sup 38}Ca (T{sub z}=-1) and {sup 38}Ar (T{sub z}=+1), and with the results of shell-model calculations.