Lifetime measurements of excited states in neutron-rich Ti-53: Benchmarking effective shell-model interactions

Goldkuhle A.; Blazhev A.; Fransen C.; Dewald A.; Beckers M.; Birkenbach B.; Braunroth T.; Clement E.; Dudouet J.; Eberth J.; Hess H.; Jacquot B.; Jolie J.; Kim Y-H; Lemasson A.; Lenzi S. M.; Li H. J.; Litzinger J.; Michelagnoli C.; Mueller-Gatermann C.; Singh B. S. Nara; Perez-Vidal R. M.; Ralet D.; Reiter P.; Vogt A.; Warr N.; Zell K. O.

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Lifetime measurements of excited states in neutron-rich Ti-53: Benchmarking effective shell-model interactions

机译：富中子TI-53中兴奋状态的寿命测量：基准测试有效的壳模型相互作用

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Level lifetimes of the yrast (5/2(-)) to 13/2(-) states in the neutron-rich nucleus Ti-53, produced in a multinucleon-transfer reaction, have been measured for the first time. The recoil distance Doppler-shift method was employed and lifetimes of the excited states were extracted by a lineshape analysis aided by GEANT4-based Monte-Carlo simulations. The experiment was performed at the Grand Accelerateur National d'Ions Lourds facility in Caen, France, by using the Advanced Gamma Tracking Array for the gamma-ray detection coupled to the large-acceptance variable mode spectrometer for an event-by-event particle identification and the Cologne plunger for deep-inelastic reactions. Reduced transition probabilities, deduced from the lifetimes, give new information on the nuclear structure of Ti-53, and are used to benchmark different shell-model calculations using established interactions in the f p shell.

机译：首次测量了多核子转移反应中产生的富中子核Ti-53中yrast（5/2（-）至13/2（-）态的能级寿命。采用反冲距离多普勒频移法，通过基于GEANT4的蒙特卡罗模拟辅助线形分析提取激发态的寿命。该实验在法国卡昂的Grand Acceleratoreur National d’Ions Lourds设施进行，使用先进的伽马跟踪阵列进行伽马射线探测，并与大型可接受可变模式光谱仪进行逐事件粒子识别，以及科隆柱塞进行深度非弹性反应。根据寿命推导出的约化跃迁概率提供了有关Ti-53核结构的新信息，并用于利用f-p壳层中已建立的相互作用对不同的壳层模型计算进行基准测试。

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《Physical review, C》 |2020年第5期|共10页
作者
Goldkuhle A.; Blazhev A.; Fransen C.; Dewald A.; Beckers M.; Birkenbach B.; Braunroth T.; Clement E.; Dudouet J.; Eberth J.; Hess H.; Jacquot B.; Jolie J.; Kim Y-H; Lemasson A.; Lenzi S. M.; Li H. J.; Litzinger J.; Michelagnoli C.; Mueller-Gatermann C.; Singh B. S. Nara; Perez-Vidal R. M.; Ralet D.; Reiter P.; Vogt A.; Warr N.; Zell K. O.;
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Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

CNRS IN2P3 CEA DRF GANIL BP 55027 F-14076 Caen 05 France;

Univ Claude Bernard Lyon 1 Univ Lyon CNRS IN2P3 IP2I Lyon UMR 5822 F-69622 Villeurbanne France;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

CNRS IN2P3 CEA DRF GANIL BP 55027 F-14076 Caen 05 France;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Inst Laue Langevin BP 156 F-38042 Grenoble 9 France;

CNRS IN2P3 CEA DRF GANIL BP 55027 F-14076 Caen 05 France;

Ist Nazl Fis Nucl Sez Padova I-135131 Padua Italy;

CNRS IN2P3 CEA DRF GANIL BP 55027 F-14076 Caen 05 France;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

CNRS IN2P3 CEA DRF GANIL BP 55027 F-14076 Caen 05 France;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Manchester Schuster Lab Nucl Phys Grp Manchester M13 9PL Lancs England;

Univ Valencia Inst Fis Corpuscular CSIC E-46071 Valencia Spain;

CNRS IN2P3 Ctr Spectrometrie Nucl &

Spectrometrie Masse CSNS Orsay Campus F-91405 Orsay France;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

Univ Cologne Inst Kernphys D-50937 Cologne Germany;

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中图分类原子核物理学、高能物理学;
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机译：富含中子核的兴奋状态的寿命测量〜（48）CA
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13. Shell-model calculations with realistic effective interactions [R] . Osnes, E. , Hjort-Jensen, M. , Engeland, T. , 1992

机译：壳模型计算与实际有效的相互作用

Lifetime measurements of excited states in neutron-rich Ti-53: Benchmarking effective shell-model interactions

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