Interplay between single-particle and collective excitations in argon isotopes populated by transfer reactions
Interplay between single-particle and collective excitations in argon isotopes populated by transfer reactions
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DOI：
10.1103/physrevc.84.014325
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发表时间：
2011-07
影响因子：
3.1
通讯作者：
S. Szilner;L. Corradi;F. Haas;D. Lebhertz;G. Pollarolo;C. Ur;L. Angus;S. Beghini;M. Bouhelal;R. Chapman;E. Caurier;S. Courtin;E. Farnea;E. Fioretto;A. Gadea;A. Goasduff;D. Jelavić-Malenica;V. Kumar;S. Lunardi;N. Mărginean;P. Mason;D. Mengoni;G. Montagnoli;F. Nowacki;F. Recchia;E. Sahin;M. Salsac;F. Scarlassara;R. Silvestri;J. Smith;N. Soić;A. Stefanini;J. Valiente-Dobon
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文献类型：
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作者：
S. Szilner;L. Corradi;F. Haas;D. Lebhertz;G. Pollarolo;C. Ur;L. Angus;S. Beghini;M. Bouhelal;R. Chapman;E. Caurier;S. Courtin;E. Farnea;E. Fioretto;A. Gadea;A. Goasduff;D. Jelavić-Malenica;V. Kumar;S. Lunardi;N. Mărginean;P. Mason;D. Mengoni;G. Montagnoli;F. Nowacki;F. Recchia;E. Sahin;M. Salsac;F. Scarlassara;R. Silvestri;J. Smith;N. Soić;A. Stefanini;J. Valiente-Dobon
通过利用基于与大型 γ 阵列耦合的轨迹重建的新一代磁谱仪进行碎片 γ 测量，在 40 Ar + 208 Pb 多重转移反应中，在氩同位素中发现了新的 γ 跃迁。讨论了单粒子自由度与核振动量子的耦合。对粒子-声子耦合图中新观察到的状态的解释被用来通过它们的激发能一致地跟踪奇数Ar同位素的集体演化。所提出的水平方案得到了 sd-pf 壳模型计算结果的支持，该计算结果也被用来评估填充状态的强度函数。
New γ transitions have been identified in argon isotopes in 40 Ar + 208 Pb multiple transfer reactions by exploiting, in a fragment-γ measurement, the new generation of magnetic spectrometers based on trajectory reconstruction coupled to large γ arrays. The coupling of single-particle degrees of freedom to nuclear vibration quanta was discussed. The interpretation of the newly observed states within a particle-phonon coupling picture was used to consistently follow, via their excitation energies, the evolution of collectivity in odd Ar isotopes. The proposed level schemes are supported by the results of sd-pf shell-model calculations, which have been also employed to evaluate the strength functions of the populated states.