Lifetime measurements in Re-166: Collective versus magnetic rotation

Li H. J.; Cederwall B.; Doncel M.; Peng J.; Chen Q. B.; Zhang S. Q.; Zhao P. W.; Meng J.; Back T.; Jakobsson U.; Auranen K.; Boenig S.; Drummond M.; Grahn T.; Greenlees P.; Herzan A.; Joss D. T.; Julin R.; Juutinen S.; Konki J.; Kroell T.; Leino M.; McPeake C.; ODonnell D.; Page R. D.; Pakarinen J.; Partanen J.; Peura P.; Rahkila P.; Ruotsalainen P.; Sandzelius M.; Saren J.; Saygi B.; Scholey C.; Sorri J.; Stolze S.; Taylor M. J.; Thornthwaite A.; Uusitalo J.; Xiao Z. G.

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Lifetime measurements in Re-166: Collective versus magnetic rotation

机译：RE-166中的寿命测量：集体与磁旋转

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Lifetimes of excited states in the neutron-deficient odd-odd nucleus Re-166 have been measured for the first time using the recoil distance Doppler-shift method. The measured lifetime for the (8(-)) state; tau = 480 (80) ps, enabled an assessment of the multipolarities of the gamma rays depopulating this state. Information on electromagnetic transition strengths were deduced for the gamma-ray transitions from the (9(-)), (10(-)), and (11(-)) states, and in the case of the (10(-)) and (11(-)) states limits on the B (M1) and B(E2) strengths were estimated. The results are compared with total Routhian surface predictions and semiclassical calculations. Tilted-axis cranking calculations based on a relativistic mean-field approach (TAC-RMF) have also been performed in order to test the possibility of magnetic rotation in the 166Re nucleus. While the TAC-RMF calculations predict a quadrupole-deformed nuclear shape with similar beta(2) deformation as obtained by using the TRS model, it was found that the experimental electromagnetic transition rates are in better agreement with a collective -rotational description.

机译：使用反冲距离多普勒 - 换档方法首次测量中子缺乏奇数核Re-166中的激发态的寿命。（8（ - ））状态的测量寿命; Tau = 480（80）PS，使得伽马射线的多极性进行评估。推导出用于（9（ - ）），（10（ - ））和（11（ - ））的γ射线过渡的电磁转变强度的信息，并在（10（ - ））（11（ - ））估计B（M1）和B（E2）强度的态限。将结果与雷托安表面预测和半分解计算进行比较。还已经进行了基于相对论平均场方法（TAC-RMF）的倾斜轴曲柄计算，以便在166重核中测试磁旋转的可能性。虽然TAC-RMF计算通过使用TRS模型获得的具有相似的β（2）变形的四极性变形的核形状，但发现实验电磁过渡率与集体的描述更好。

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《Physical review, C》 |2016年第3期|共10页
作者
Li H. J.; Cederwall B.; Doncel M.; Peng J.; Chen Q. B.; Zhang S. Q.; Zhao P. W.; Meng J.; Back T.; Jakobsson U.; Auranen K.; Boenig S.; Drummond M.; Grahn T.; Greenlees P.; Herzan A.; Joss D. T.; Julin R.; Juutinen S.; Konki J.; Kroell T.; Leino M.; McPeake C.; ODonnell D.; Page R. D.; Pakarinen J.; Partanen J.; Peura P.; Rahkila P.; Ruotsalainen P.; Sandzelius M.; Saren J.; Saygi B.; Scholey C.; Sorri J.; Stolze S.; Taylor M. J.; Thornthwaite A.; Uusitalo J.; Xiao Z. G.;
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作者单位

KTH Royal Inst Technol Dept Phys SE-10691 Stockholm Sweden;

KTH Royal Inst Technol Dept Phys SE-10691 Stockholm Sweden;

KTH Royal Inst Technol Dept Phys SE-10691 Stockholm Sweden;

Beijing Normal Univ Dept Phys Beijing 100875 Peoples R China;

Peking Univ Sch Phys State Key Lab Nucl Phys &

Technol Beijing 100871 Peoples R China;

Peking Univ Sch Phys State Key Lab Nucl Phys &

Technol Beijing 100871 Peoples R China;

Peking Univ Sch Phys State Key Lab Nucl Phys &

Technol Beijing 100871 Peoples R China;

Peking Univ Sch Phys State Key Lab Nucl Phys &

Technol Beijing 100871 Peoples R China;

KTH Royal Inst Technol Dept Phys SE-10691 Stockholm Sweden;

KTH Royal Inst Technol Dept Phys SE-10691 Stockholm Sweden;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Tech Univ Darmstadt Inst Kernphys D-64289 Darmstadt Germany;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Tech Univ Darmstadt Inst Kernphys D-64289 Darmstadt Germany;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Univ Manchester Sch Phys &

Astron Manchester M13 9PL Lancs England;

Univ Liverpool Oliver Lodge Lab Dept Phys Liverpool L69 7ZE Merseyside England;

Univ Jyvaskyla Dept Phys POB 35 FI-40014 Jyvaskyla Finland;

Tsinghua Univ Dept Phys Beijing 100084 Peoples R China;

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正文语种 eng
中图分类原子核物理学、高能物理学;
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专利

1. Lifetime measurements in Re-166: Collective versus magnetic rotation [J] . Li H. J., Cederwall B., Doncel M., Physical review, C . 2016,第3期

机译：RE-166中的寿命测量：集体与磁旋转
2. New lifetime measurements for the lowest quadrupole states in Ne-20,(22) and possible explanations of the high collectivity of the depopulating E2 transitions [J] . Petkov P., Mueller-Gatermann C., Werner D., Physical review, C . 2019,第2期

机译：NE-20，（22）中最低四极其状态的新寿命测量和缺点E2转换的高集距率的可能解释
3. Lifetime measurements of excited states in ~(162)Wand ~(164)W and the evolution of collectivity in rare-earth nuclei [J] . M. Doncel, B. Cederwall, C. Qi, Physical Review C . 2017,第期

机译：〜（162）魔〜（164）W的兴奋状态的寿命测量和稀土核中的集体的演变
4. Memory Effects in Femtosecond Collective Spin Rotation in Ferromagnetic Semiconductors [C] . J. Wang, I. Cotoros, D. S. Chemla, Conference on ultrafast phenomena in semiconductors and nanostructure materials XIII; 20090125-28; San Jose, CA(US) . 2009

机译：铁磁半导体飞秒集体自旋旋转中的记忆效应
5. Measurements of ultra-small current-induced rotation and magnetic properties of micro/nano wires. [D] . Li, Xin. 2005

机译：微/纳米线的超小电流感应旋转和磁性能的测量。
6. Controlling collective rotational patterns of magnetic rotors [O] . Daiki Matsunaga, Joshua K. Hamilton, Fanlong Meng, -1

机译：控制磁转子的集体旋转模式
7. Lifetime measurements in 166Re: Collective versus magnetic rotation [O] . Joss DT, Page RD 2016

机译：166Re的使用寿命测量：集体旋转与磁旋转

Lifetime measurements in Re-166: Collective versus magnetic rotation

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