Searching for high-<em>K</em> isomers in the proton-rich <em>A</em>~80 mass region

Zhi-Jun Bai; Chang-Feng Jiao; Yuan Gao; Fu-Rong Xu

doi:10.1088/1674-1137/40/9/094102

Chinese Physics C> 2016, Vol. 40> Issue(9) : 094102 DOI: 10.1088/1674-1137/40/9/094102

Searching for high-K isomers in the proton-rich A~80 mass region

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Abstract：
Configuration-constrained potential-energy-surface calculations have been performed to investigate the K isomerism in the proton-rich A~80 mass region. An abundance of high-K states are predicted. These high-K states arise from two and four-quasi-particle excitations, with K^π=8⁺ and K^π=16⁺, respectively. Their excitation energies are comparatively low, making them good candidates for long-lived isomers. Since most nuclei under study are prolate spheroids in their ground states, the oblate shapes of the predicted high-K states may indicate a combination of K isomerism and shape isomerism.
- isomer ,
- high-K ,
- proton-rich ,
- quasi-particle excitation ,
- potential-energy surface

References

[1]	R.-D. Herzberg et al, Nature, 442:896-899(2006)
[2]	P. Walker, G. Dracoulis, Nature, 399:35-40(1999)
[3]	N. Alkhomashi et al, Phys. Rev. C, 80:064308(2009)
[4]	P. M. Walker, F. R. Xu, Phys. Lett. B, 635:286-289(2006)
[5]	F. R. Xu, P. M. Walker, R. Wyss, Phys. Rev. C, 62:014301(2000)
[6]	G. D. Dracoulis et al, Phys. Lett. B, 635:200-206(2006)
[7]	H. B. Jeppesen et al, Phys. Rev. C, 79:031303(R) (2009)
[8]	F. R. Xu, E. G. Zhao, R. Wyss, P. M. Walker, Phys. Rev. Lett., 92:252501(2004)
[9]	H. L. Liu, F. R. Xu, P. M. Walker, C. A. Bertulani, Phys. Rev. C, 83:011303(R) (2011)
[10]	Y. X. Liu, S. Y. Yu, Y. Sun, Sci. China-Phys. Mech. Astron., 58:112003(2015)
[11]	P. M. Walker, F. R. Xu, Phys. Scr., 91:013010(2016)
[12]	J. L. Wood, K. Heyde, W. Nazarewicz, M. Huyse, P. van Duppen, Phys. Rep., 215:101-201(1992)
[13]	Z. J. Bai, X. M. Fu, C. F. Jiao, F. R. Xu, Chin. Phys. C, 39:094101(2015)
[14]	H. Schatz et al, Phys. Rep., 294:167-263(1998)
[15]	H. Schatz et al, Phys. Rev. Lett., 86:3471-3474(2001)
[16]	P. Kienle et al, Prog. Part. Nucl. Phys., 46:73-78(2001)
[17]	E. Bouchez et al, Phys. Rev. Lett., 90:082502(2003)
[18]	P. Mller, A. J. Sierk, R. Bengtsson, H. Sagawa, T. Ichikawa, Phys. Rev. Lett., 103:212501(2009)
[19]	Y. Sun, Eur. Phys. J. A, 20:133-138(2004)
[20]	F. R. Xu, P. M. Walker, J. A. Sheikh, R. Wyss, Phys. Lett. B, 435:257-263(1998)
[21]	W. D. Myers, W. J. Swiatecki, Nucl. Phys., 81:1-60(1966)
[22]	V. M. Strutinsky, Nucl. Phys. A, 95:420-442(1967)
[23]	W. Nazarewicz, J. Dudek, R. Bengtsson, T. Bengtsson, I. Ragnarsson, Nucl. Phys. A, 435:397-447(1985)
[24]	S.Ćwiok, J. Dudek, W. Nazarewicz, J. Skalski, T. Werner, Comput. Phys. Commun., 46:379-399(1987)
[25]	J. Dudek, Z. Szymański, T. Werner, Phys. Rev. C, 23:920-925(1981)
[26]	P. Mller, J. R. Nix, Nucl. Phys. A, 536:20-60(1992)
[27]	F. R. Xu, R. Wyss, P. M. Walker, Phys. Rev. C, 60:051301(R) (1999)
[28]	H. C. Pradhan, Y. Nogami, J. Law, Nucl. Phys. A, 201:357-368(1973)
[29]	W. Nazarewicz, M. A. Riley, J. D. Garrett, Nucl. Phys. A, 512:61-96(1990)
[30]	Y. X. Liu, S. Y. Yu, C. W. Shen, Sci. China-Phys. Mech. Astron., 58:012001(2015)
[31]	A. N. Deacon et al, Phys. Rev. C, 76:054303(2007)
[32]	H. Iwasaki et al, Phys. Rev. Lett., 112:142502(2014)
[33]	C. J. Lister et al, Phys. Rev. Lett., 59:1270-1273(1987)
[34]	F. R. Xu, P. M. Walker, R. Wyss, Phys. Rev. C, 59:731-734(1999)
[35]	Y. Shi, F. R. Xu, H. L. Liu, P. M. Walker, Phys. Rev. C, 82:044314(2010)

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[18]	Zhou Xiaohong , Sun Xiangfu , Guo Yinxiang , Lei Xiangguo , Liu Zhong , Zhang Yuhu , Chen Xinfeng , Jin Hanjuan , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Study of High-Spin States in ¹⁹⁸Bi. Chinese Physics C, 1996, 20(S3): 243-251.
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[20]	Lu Zhaoqi , D. H. E. Gross , Sa Benhao , Zheng Yuming . Charge Dispersion of Fragments in High Energy Proton-Nucleus Collisions. Chinese Physics C, 1988, 12(S1): 45-50.

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Zhi-Jun Bai, Chang-Feng Jiao, Yuan Gao and Fu-Rong Xu. Searching for high-K isomers in the proton-rich A~80 mass region[J]. Chinese Physics C, 2016, 40(9): 094102. doi: 10.1088/1674-1137/40/9/094102

Zhi-Jun Bai, Chang-Feng Jiao, Yuan Gao and Fu-Rong Xu. Searching for high-K isomers in the proton-rich A~80 mass region[J]. Chinese Physics C, 2016, 40(9): 094102. doi: 10.1088/1674-1137/40/9/094102 shu

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Received: 2016-03-24

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Supported by National Key Basic Research Program of China (2013CB834402) and National Natural Science Foundation of China (11235001, 11320101004 and 11575007)

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沈阳化工大学材料科学与工程学院沈阳 110142

Searching for high-K isomers in the proton-rich A~80 mass region

Corresponding author: Fu-Rong Xu,

Received Date: 2016-03-24

Available Online: 2016-09-05

Fund Project: Supported by National Key Basic Research Program of China (2013CB834402) and National Natural Science Foundation of China (11235001, 11320101004 and 11575007)

Abstract: Configuration-constrained potential-energy-surface calculations have been performed to investigate the K isomerism in the proton-rich A~80 mass region. An abundance of high-K states are predicted. These high-K states arise from two and four-quasi-particle excitations, with K^π=8⁺ and K^π=16⁺, respectively. Their excitation energies are comparatively low, making them good candidates for long-lived isomers. Since most nuclei under study are prolate spheroids in their ground states, the oblate shapes of the predicted high-K states may indicate a combination of K isomerism and shape isomerism.

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Searching for high-K isomers in the proton-rich A~80 mass region

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Searching for high-K isomers in the proton-rich A~80 mass region

Corresponding author: Fu-Rong Xu,

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