Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

Werner V.; Cooper N.; Regis J. -M.; Rudigier M.; Williams E.; Jolie J.; Cakirli R. B.; Casten R. F.; Ahn T.; Anagnostatou V.; Berant Z.; Bonett-Matiz M.; Elvers M.; Heinz A.; Ilie G.; Radeck D.; Savran D.; Smith M. K.

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Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

机译：在稀土核中的兴奋状态寿命测量中壳中壳中壳体中的集体演变

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The B(E2) excitation strength of the first excited 2(+) state in even-even nuclei should directly correlate with the size of the valence space and maximize at mid-shell. A previously found saturation of B(E2) strengths in well-deformed rotors at mid-shell is tested through high-precision measurements of the lifetimes of the lowest-lying 2(+) states of the Hf-168 and W-174 rare earth isotopes. Measurements were performed using fast LaBr3 scintillation detectors. Combined with the recently remeasured B(E2; 2(1)(+) -> 0(1)(+)) values for Hf and W isotopes the new data remove discrepancies observed in the differentials of B(E2) values for these isotopes.

机译：偶核癌中的第一激发2（+）状态的B（E2）激发强度应与价尺寸直接相关，并在中间壳中最大化。通过HF-168和W-174稀土的最低位2（+）状态的寿命的寿命的高精度测量，通过高精度测量来测试先前发现的B（E2）强度的饱和度的饱和度同位素。使用快速Labr3闪烁探测器进行测量。结合最近重复的B（E2; 2（1）（+） - > 0（+） - > 0（+））值，用于HF和W同位素的值，新的数据消除了这些同位素的B（E2）值的差异中观察到的差异。

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来源
《Physical review, C》 |2016年第3期|共6页
作者
Werner V.; Cooper N.; Regis J. -M.; Rudigier M.; Williams E.; Jolie J.; Cakirli R. B.; Casten R. F.; Ahn T.; Anagnostatou V.; Berant Z.; Bonett-Matiz M.; Elvers M.; Heinz A.; Ilie G.; Radeck D.; Savran D.; Smith M. K.;
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Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Univ Cologne Inst Kernphys Zulpicher Str 77 D-50937 Cologne Germany;

Univ Cologne Inst Kernphys Zulpicher Str 77 D-50937 Cologne Germany;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Univ Cologne Inst Kernphys Zulpicher Str 77 D-50937 Cologne Germany;

Istanbul Univ Dept Phys TR-34134 Istanbul Turkey;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

Yale Univ Wright Nucl Struct Lab POB 208120 New Haven CT 06520 USA;

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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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3. Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei [J] . Werner V., Cooper N., Regis J. -M., Physical review, C . 2016,第3期

机译：在稀土核中的兴奋状态寿命测量中壳中壳中壳体中的集体演变
4. Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements [J] . Jungclaus A., Walker J., Leske J., Physics Letters, B. Nuclear Physics and High Energy Physics . 2011,第1a4期

机译：新的寿命测量结果证明了稳定的均匀质量Sn同位素在中子中壳周围的集体性降低的证据
5. Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements [J] . A. Jungclaus, J. Walker, J. Leske, Physics letters . 2011,第1a4期

机译：新的寿命测量结果证明了稳定的均匀质量Sn同位素在中子中壳周围的集体性降低的证据
6. High-precision excited state lifetime measurements in rare earth nuclei using LaBr_3(Ce) detectors [C] . E. Williams, N. Cooper, M. Bonett-Matiz, Heavy Ion Accelerator Symposium on Fundamental and Applied Science . 2012

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7. Angular momentum induced shape changes in the rare-earth nuclei gadolinium-152,153 and ytterbium-159,160. [D] . Campbell, David B. 2004

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Evolution of collectivity near mid-shell from excited-state lifetime measurements in rare earth nuclei

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