2011/12/14 by Shuifa Shen, Shen, Shuifa, Xuzhong Kang +18
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Nuclear Experiment (nucl-ex) #Nuclear Physics and Applications #Nuclear Theory (nucl-th) #Nuclear physics research studies #nucl-ex #nucl-th
paper · pdf · doi:10.48550/arxiv.1112.3192
openalex publication_date 2011/12/14 · arxiv created 2012/06/06 · arxiv updated 2012/06/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
High-spin states of 84Sr were populated through the reaction 70Zn(18O, 4n)84Sr at 75 MeV beam energy. Measurement of excitation function, gamma-gamma coincidences, directional correlation of oriented states (DCO) ratios and gamma-transition intensities were performed using eight anticompton HPGe detectors and one planar HPGe detector. Based on the measured results, a new level scheme of 84Sr was established in which 12 new states and nearly 30 new gamma-transitions were identified in the present work. The positive-parity states of the new level scheme were compared with results from calculations in the framework of the projected shell model (PSM). One negative-parity band was extended to spin I=19 and it can be found that in the high-spin states the gamma-transition energies show the nature of signature staggering. The negative-parity band levels are in good agreement with the deformed configuration-mixing shell model (DCM) calculations.