Isospin dependence of electromagnetic transition strengths among an isobaric triplet
Isospin dependence of electromagnetic transition strengths among an isobaric triplet
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同位素三重态电磁跃迁强度的同位旋依赖性
DOI:
10.1016/j.physletb.2019.134835
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发表时间:
2019
影响因子:
4.4
通讯作者:
Boso A
中科院分区:
文献类型:
--
作者:
Boso A
Electric quadrupole matrix elements, M p, for the J π= 2+→ 0+, Δ T= 0, T= 1 transitions across the A= 46 isobaric multiplet 46 Cr-46 V-46 Ti have been measured at GSI with the FRS-LYCCA-AGATA setup. This allows direct insight into the isospin purity of the states of interest by testing the linearity of M p with respect to T z. Pairs of nuclei in the T= 1 triplet were studied using identical reaction mechanisms in order to control systematic errors. The M p values were obtained with two different methodologies:(i) a relativistic Coulomb excitation experiment was performed for 46 Cr and 46 Ti;(ii) a “stretched target” technique was adopted here, for the first time, for lifetime measurements in 46 V and 46 Ti. A constant value of M p across the triplet has been observed. Shell-model calculations performed within the fp shell fail to reproduce this unexpected trend, pointing towards the need of a wider valence space. This result is confirmed by the good agreement with experimental data achieved with an interaction which allows excitations from the underlying sd shell. A test of the linearity rule for all published data on complete T= 1 isospin triplets is presented.
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影响因子:
3.7
作者:
Jun Chen;Balraj Singh
通讯作者:
Balraj Singh
影响因子:
8.6
作者:
Milne SA
通讯作者:
Milne SA
影响因子:
3.1
作者:
F. Estévez;A. Bruce;M. Taylor;H. Amro;C. Beausang;R. Casten;J. Ressler;C. Barton;C. Chandler;G. Hammond
通讯作者:
G. Hammond
DOI:
10.1140/epjad/i2005-06-094-0
发表时间:
2005
期刊:
The European Physical Journal A - Hadrons and Nuclei
影响因子:
--
作者:
K. Yamada;T. Motobayashi;N. Aoi;H. Baba;K. Demichi;Z. Elekes;J. Gibelin;T. Gomi;H. Hasegawa;N. Imai;H. Iwasaki;S. Kanno;T. Kubo;K. Kurita;Y. Matsuyama;S. Michimasa;T. Minemura;M. Notani;T. Onishi K.;H. Ong;S. Ota;A. Ozawa;A. Saito;H. Sakurai;S. Shimoura;E. Takeshita;S. Takeuchi;M. Tamaki;Y. Togano;Y. Yanagisawa;K. Yoneda;I. Tanihata
通讯作者:
I. Tanihata
影响因子:
8.6
作者:
A. Bernstein;V. R. Brown;V. A. Madsen
通讯作者:
V. A. Madsen