Investigation of the high-spin yrast band structure of 236-246Pu isotopes

被引：0

作者：

Jaafer, Ashwaq F. ^{[1
]}

Al-Khudair, Falih H. ^{[1
]}

机构：

[1] Univ Basrah, Coll Educ Pure Sci, Dept Phys, Basrah, Iraq

来源：

PHYSICAL REVIEW C | 2022年 / 106卷 / 06期

关键词：

PROJECTED SHELL-MODEL; QUANTUM NUMBER PROJECTION; SUPERDEFORMED BANDS; NUCLEI; STATES; DEFORMATIONS; ROTATION; MOMENTS;

D O I：

10.1103/PhysRevC.106.064309

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The available data on some actinide nuclei point to certain significant features of the rotational yrast band and other excited bands. The rotational properties of plutonium isotopes (236-346Pu) were studied via projected shell model (PSM). Calculations are based on the Hamiltonian of the PSM which includes the formed part of a single particle, the Q - Q force, and the residual interaction of monopole and quadrupole pairings. The results of the calculated energy levels of the yrast band are then compared with available experimental data and a good agreement has been found. The crossing between two-quasiparticle (2qp) excited bands and the ground state band (g band) in the high-spin regions has been analyzed in terms of band diagrams. The upbendings observed in the kinematic moments of inertia (j(1) MOI) curves for 236-346Pu isotopes are due to the effect of two aligning nucleons that occupy excited bands and the nu( j15/2), pi(i13/2) high -j intruder orbits. The PSM successfully reproduces the observed upbending in j(1) as well as the upturning and downturning in j(2). For the 240Pu isotope, the PSM predicts a simultaneous alignment of neutrons nu 2 [1/2, -7/2] K pi = 4+ and protons pi 2 [-3/2, 5/2] K pi = 1+ bands cross the g band at spin I = 22. We expect it to be mainly responsible for the disagreement at I = 22. Furthermore, electric quadrupole transition probabilities B(E2) and the gyromagnetic factor (g factor) for the yrast band energy levels are also studied.

引用

页数：9

共 50 条

[21] High-spin level structure of 35S
Aydin, S.
Ionescu-Bujor, M.
Recchia, F.
Lenzi, S. M.
Bouhelal, M.
Bazzacco, D.
Bizzeti, P. G.
Bizzeti-Sona, A. M.
de Angelis, G.
Deloncle, I.
Farnea, E.
Gadea, A.
Gottardo, A.
Haas, F.
Huyuk, T.
Laftchiev, H.
Lunardi, S.
Mengoni, D.
Menegazzo, R.
Michelagnoli, C.
Napoli, D. R.
Poves, A.
Sahin, E.
Singh, P. P.
Tonev, D.
Ur, C. A.
Valiente-Dobon, J. J.
PHYSICAL REVIEW C, 2014, 89 (01):
[22] Medium- and high-spin band structure of the chiral-candidate nucleus 134Pr
Timar, J.
Starosta, K.
Kuti, I.
Sohler, D.
Fossan, D. B.
Koike, T.
Paul, E. S.
Boston, A. J.
Chantler, H. J.
Descovich, M.
Clark, R. M.
Cromaz, M.
Fallon, P.
Lee, I. Y.
Macchiavelli, A. O.
Chiara, C. J.
Wadsworth, R.
Hecht, A. A.
Almehed, D.
Frauendorf, S.
PHYSICAL REVIEW C, 2011, 84 (04):
[23] Spectroscopy and high-spin structure of 209Fr
Dracoulis, G. D.
Davidson, P. M.
Lane, G. J.
Byrne, A. P.
Kibedi, T.
Nieminen, P.
Watanabe, H.
Wilson, A. N.
PHYSICAL REVIEW C, 2009, 79 (05):
[24] High-spin level structure of 209Rn
Das, Sneha
Bhattacharyya, S.
Bhattacharya, Soumik
Chakraborty, S.
Shukla, Sakshi
Srivastava, Praveen C.
Banik, R.
Nandi, S.
Mukherjee, G.
Bala, Indu
Bhattacharjee, S. S.
Gupta, S. Das
Dhal, A.
Mondal, Debasish
Muralithar, S.
Raut, R.
Sharma, A.
Singh, R. P.
Srivastava, V.
PHYSICAL REVIEW C, 2024, 109 (01)
[25] Observation of high-spin oblate band structures in 141Pm
Gu, L.
Zhu, S. J.
Wang, J. G.
Yeoh, E. Y.
Xiao, Z. G.
Zhang, S. Q.
Meng, J.
Zhang, M.
Liu, Y.
Ding, H. B.
Xu, Q.
Zhu, L. H.
Wu, X. G.
He, C. Y.
Li, G. S.
Wang, L. L.
Zheng, Y.
Zhang, B.
PHYSICAL REVIEW C, 2011, 83 (06):
[26] High-spin structures in the neutron-rich isotopes 57-60Mn
Steppenbeck, D.
Deacon, A. N.
Freeman, S. J.
Janssens, R. V. F.
Zhu, S.
Carpenter, M. P.
Chowdhury, P.
Honma, M.
Lauritsen, T.
Lister, C. J.
Seweryniak, D.
Smith, J. F.
Tabor, S. L.
Varley, B. J.
PHYSICAL REVIEW C, 2010, 81 (01):
[27] High-spin structure and intruder excitations in 36Cl
Aydin, S.
Recchia, F.
Ionescu-Bujor, M.
Gadea, A.
Lenzi, S. M.
Lunardi, S.
Ur, C. A.
Bazzacco, D.
Bizzeti, P. G.
Bizzeti-Sona, A. M.
Bouhelal, M.
de Angelis, G.
Deloncle, I.
Farnea, E.
Gottardo, A.
Haas, F.
Huyuk, T.
Laftchiev, H.
Mengoni, D.
Menegazzo, R.
Michelagnoli, C.
Napoli, D. R.
Sahin, E.
Singh, P. P.
Tonev, D.
Valiente-Dobon, J. J.
PHYSICAL REVIEW C, 2012, 86 (02):
[28] Lifetime measurements and the high-spin structure of 36Cl
Aydin, S.
Ionescu-Bujor, M.
Recchia, F.
Gadea, A.
Lenzi, S. M.
Lunardi, S.
Ur, C. A.
Bazzacco, D.
Bizzeti, P. G.
Bizzeti-Sona, A. M.
Bouhelal, M.
de Angelis, G.
Deloncle, I.
Farnea, E.
Gottardo, A.
Haas, F.
Huyuk, T.
Laftchiev, H.
Mengoni, D.
Menegazzo, R.
Michelagnoli, C.
Napoli, D. R.
Sahin, E.
Singh, P. P.
Tonev, D.
Valiente-Dobon, J. J.
NUBA CONFERENCE SERIES -1: NUCLEAR PHYSICS AND ASTROPHYSICS, 2015, 590
[29] New low-spin levels in 76Se and discussion of its yrast band structure
Shen, SF
Li, Y
Gu, JH
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2005, 29 (02): : 139 - 146
[30] Isomer spectroscopy in 133Ba and high-spin structure of 134Ba
Kaya, L.
Vogt, A.
Reiter, P.
Siciliano, M.
Shimizu, N.
Utsuno, Y.
Wang, H-K
Gargano, A.
Coraggio, L.
Itaco, N.
Arnswald, K.
Bazzacco, D.
Birkenbach, B.
Blazhev, A.
Bracco, A.
Bruyneel, B.
Corradi, L.
Crespi, F. C. L.
de Angelis, G.
Droste, M.
Eberth, J.
Esmaylzadeh, A.
Farnea, E.
Fioretto, E.
Fransen, C.
Gadea, A.
Giaz, A.
Gorgen, A.
Gottardo, A.
Hadynska-Klek, K.
Hess, H.
Hirsch, R.
John, P. R.
Jolie, J.
Jungclaus, A.
Karayonchev, V
Kornwebel, L.
Korten, W.
Leoni, S.
Lewandowski, L.
Lunardi, S.
Menegazzo, R.
Mengoni, D.
Michelagnoli, C.
Mijatovic, T.
Montagnoli, G.
Montanari, D.
Mueller-Gatermann, C.
Napoli, D.
Podolyak, Zs
PHYSICAL REVIEW C, 2019, 100 (02)

← 1 2 3 4 5 →