Indications of octupole correlation in 84Sr

被引:0
|
作者
Anuj, S. [1 ]
Kumar, S. [1 ]
Kumar, Naveen [1 ]
Rajput, Neelam [1 ]
Devi, K. Rojeeta [1 ]
Kumar, Neeraj [1 ]
Ahmad, C., V [1 ]
Banerjee, Akashrup [1 ]
Rohilla, Aman [1 ]
Gupta, C. K. [1 ]
Pandey, Anand [1 ]
Bhushan, Ravi [1 ]
Gupta, Unnati [1 ]
Mandal, S. K. [1 ]
Bhattacharjee, S. S. [2 ]
Arora, Divya [2 ]
Garg, R. [2 ]
Bala, Indu [2 ]
Kumar, Rakesh [2 ]
Singh, R. P. [2 ]
Muralithar, S. [2 ]
Jyothi, V. V. [3 ]
Majumder, Chandrani [4 ]
Sharma, Hariprakash [4 ]
Sharma, Anupriya [5 ]
Dhiman, S. K. [5 ]
机构
[1] Univ Delhi, Dept Phys & Astrophys, New Delhi 110007, India
[2] Interuniv Accelerator Ctr, Aruna Asaf Ali Marg, New Delhi 110067, India
[3] Andhra Univ, Dept Phys, Visakhapatnam 530003, India
[4] Banaras Hindu Univ, Dept Phys, Varanasi 221005, India
[5] Himachal Pradesh Univ, Dept Phys, Shimla 171005, India
关键词
Nuclear Ge-76(C-12,4n)Sr-84 reaction; E=58 MeV measured E; I; E; -; coincidence; RDCO and polarization asymmetry(?) measurements; staggering parameter S(I); B(E1) /B(E2) ratio and B(E1) values; NUCLEAR-DATA SHEETS; HIGH-SPIN STATES; BAND-STRUCTURES; GAMMA-SOFTNESS; EXCITATIONS; SE-74;
D O I
10.1088/1402-4896/ace8d2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Excited states in the Sr-84 nucleus were investigated via the Ge-76(C-12,4n)Sr-84 reaction at a beam energy of 58 MeV. The de-excited ?-rays were detected using the Indian National Gamma Array (INGA) spectrometer at Inter-University Accelerator Center, New Delhi. Directional Correlation from Oriented (DCO) states ratio and the polarization asymmetry (& UDelta;) measurements were done to confirm the spin-parity of the low-lying states. Eight new ?-ray transitions were placed in the level scheme of Sr-84. The systematic behaviour of energy staggering S(I) of the ?-band (Band 1 and Band 2) was compared with the ?-bands in the mass A & AP; 80 region and the nuclei of other mass regions with similar behaviour (odd-I down). The E1 character is confirmed for strong ?-ray transitions connecting Band 3 to the Yrast band. Comparison of new results such as B(E1)/B(E2) ratio, frequency ratio ? (-)/? (+) and energy displacement & UDelta;E in Sr-84 with those of Se-72, Sm-150, Gd-152, Ra-220 and Th-224 nuclei suggests the presence of octupole correlations in Sr-84.
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页数:12
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