Continuum effect in resonance spectra of neutron-rich oxygen isotopes

Si-Jie Dai; Fu-Rong Xu; Jian-Guo Li; Bai-Shan Hu; Zhong-Hao Sun

doi:10.1088/1674-1137/42/11/114106

Chinese Physics C> 2018, Vol. 42> Issue(11) : 114106 DOI: 10.1088/1674-1137/42/11/114106

Continuum effect in resonance spectra of neutron-rich oxygen isotopes

1.
School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
2.
School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
3.
Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

Abstract
HTML
Reference
Related

PDF

Abstract：
Starting from the CD-Bonn potential, we have performed Gamow shell-model calculations for neutron-rich oxygen isotopes, investigating excitation spectra and their resonant properties. The Gamow shell model is based on the Berggren ensemble, which is capable of treating the continuum effect reasonably in weakly bound or unbound nuclei. To calculate heavier-mass oxygen isotopes, we choose ¹⁶O as a frozen core in the Gamow shell-model calculations. The first 2⁺ excitation energies of the even-even O isotopes are calculated, and compared with those obtained by the conventional shell model using the empirical USDB interaction. The continuum effect is proved to play an important role in the shell evolution near the drip line. We also discuss the effect of the Berggren contour choice. We improve the approximation in the contour choice to give more precise calculations of resonance widths.
- CD-Bonn interaction ,
- Gamow shell model ,
- drip-line nuclei ,
- Berggren ensemble ,
- continuum ,
- resonance

References

[1]	Y. Kondo and et al, Phys. Rev. Lett., 116:102503(2016)
[2]	E. Caurier, F. Nowacki, A. Poves and J. Retamosa, Phys. Rev. C, 58:2033-2040(1998)
[3]	C. R. Hoffman and et al, Phys. Rev. Lett., 100:152502(2008)
[4]	C. Yuan, T. Suzuki, T. Otsuka, F. Xu, and N. Tsunoda, Phys. Rev. C, 85:064324(2012)
[5]	B. A. Brown and W. A. Richter, Phys. Rev. C, 74:034315(2006)
[6]	M. Kowalska and et al, Phys. Rev. C, 77:034307(2008)
[7]	R. Kanungo and et al, Phys. Rev. Lett., 102:152501(2009)
[8]	K. Tshoo and et al, Phys. Rev. Lett., 109:022501(2012)
[9]	S. R. Stroberg, H. Hergert, J. D. Holt, S. K. Bogner, and A. Schwenk, Phys. Rev. C, 93:051301(2016)
[10]	K. Hagino and H. Sagawa, Phys. Rev. C, 90:027303(2014)
[11]	K. Hagino and H. Sagawa, Phys. Rev. C, 89:014331(2014)
[12]	L. V. Grigorenko and M. V. Zhukov, Phys. Rev. C, 91:064617(2015)
[13]	R. Id Betan, R. J. Liotta, N. Sandulescu, and T. Vertse, Phys. Rev. Lett., 89:042501(2002)
[14]	K. Bennaceur, J. Dobaczewski, and M. Płoszajczak, Phys. Rev. C, 60:034308(1999)
[15]	N. Michel, W. Nazarewicz, and M. Płoszajczak, Phys. Rev. C, 82:044315(2010)
[16]	I. Rotter, Reports on Progress in Physics, 54(4):635(1991)
[17]	A. Volya and V. Zelevinsky, Phys. Rev. C, 74:064314(2006)
[18]	N. Michel, W. Nazarewicz, M. Płoszajczak, and K. Bennaceur, Phys. Rev. Lett., 89:042502(2002)
[19]	W. Fritsch, R. Lipperheide, and U. Wille, Nuclear Physics A, 241(1):79-108(1975)
[20]	N. Michel, W. Nazarewicz, M. Płoszajczak, and J. Okołowicz, Phys. Rev. C, 67:054311(2003)
[21]	Z. Sun, Q. Wu, Z. Zhao, B. Hu, S. Dai, and F. Xu. Physics Letters B, 769:227-232(2017)
[22]	R. Machleidt, Phys. Rev. C, 63:024001(2001)
[23]	S. Bogner, T. Kuo, and A. Schwenk, Physics Reports, 386(1):1-27(2003)
[24]	K. Takayanagi, Nuclear Physics A, 852(1):61-81(2011)
[25]	N. Tsunoda, K. Takayanagi, M. Hjorth-Jensen, and T. Otsuka, Phys. Rev. C, 89:024313(2014)
[26]	N. Michel, W. Nazarewicz, and M. Płoszajczak, Phys. Rev. C, 70:064313(2004)
[27]	Y. Jaganathen, R. M. I. Betan, N. Michel, W. Nazarewicz, and M. Płoszajczak, Phys. Rev. C, 96:054316(2017)
[28]	G. Hagen, M. Hjorth-Jensen, G. R. Jansen, R. Machleidt, and T. Papenbrock, Phys. Rev. Lett., 108:242501(2012)
[29]	G. Papadimitriou, J. Rotureau, N. Michel, M. Płoszajczak, and B. R. Barrett, Phys. Rev. C, 88:044318(2013)
[30]	I. J. Shin, Y. Kim, P. Maris, J. P. Vary, C. Forssn, J. Rotureau, and N. Michel, Journal of Physics G:Nuclear and Particle Physics, 44(7):075103(2017)
[31]	J. Dudek, Z. Szymański, and T. Werner, Phys. Rev. C, 23:920-925(1981)
[32]	R. Machleidt and D. Entem, Physics Reports, 503(1):1-75(2011)

[1]	Wei Sun , Andrei Alexandru , Ying Chen , Terrence Draper , Zhaofeng Liu , Yi-Bo Yang . Anatomy of the ρ resonance from lattice QCD at the physical poin. Chinese Physics C, 2018, 42(6): 063102. doi: 10.1088/1674-1137/42/6/063102
[2]	Xue-Wei Xia . Evolution of N=28 shell closure in relativistic continuum Hartree-Bogoliubov theory. Chinese Physics C, 2016, 40(7): 074101. doi: 10.1088/1674-1137/40/7/074101
[3]	TANG Mei-Tang , YANG Xiao-Dong , MAO Li-Jun , LI Jie , MA Xiao-Ming , YAN Tai-Lai , ZHENG Wen-Heng , ZHAO He , WU Bo , WANG Geng , RUAN Shuang , SHA Xiao-Ping . Side-effects of the space charge field introduced by a hollow electron beam in the electron cooler of CSRm. Chinese Physics C, 2015, 39(12): 127003. doi: 10.1088/1674-1137/39/12/127003
[4]	YANG Ding , CAO Li-Gang , MA Zhong-Yu . Collective multipole excitations of exotic nuclei in relativistic continuum random phase approximation. Chinese Physics C, 2013, 37(12): 124102. doi: 10.1088/1674-1137/37/12/124102
[5]	HAN Rui , JI Juan-Xia , LI Jia-Xing . A relativistic continuum Hartree-Bogoliubov theory description of N=3 isotones. Chinese Physics C, 2011, 35(9): 821-824. doi: 10.1088/1674-1137/35/9/006
[6]	ZHI Qi-Jun , YU Yan , ZHENG Qiang . Theoretical investigation of the Gamow-Teller transition across N=40 shell. Chinese Physics C, 2011, 35(11): 1022-1025. doi: 10.1088/1674-1137/35/11/008
[7]	HUANG Fei . Strategies for baryon resonance analysis. Chinese Physics C, 2009, 33(12): 1127-1131. doi: 10.1088/1674-1137/33/12/013
[8]	R. A. Arndt , W. J. Briscoe , M. W. Paris , I. I. Strakovsky , R. L. Workman . Baryon resonance analysis from SAID. Chinese Physics C, 2009, 33(12): 1063-1068. doi: 10.1088/1674-1137/33/12/004
[9]	D. Drechsel , S.S. Kamalov , M. Vanderhaeghen . Baryon resonance analysis from MAID. Chinese Physics C, 2009, 33(12): 1069-1076. doi: 10.1088/1674-1137/33/12/005
[10]	YUAN Cen-Xi , QI Chong , XU Fu-Rong . Shell-model studies of the N=14 and 16 shell closures in neutron-rich nuclei. Chinese Physics C, 2009, 33(S1): 55-57. doi: 10.1088/1674-1137/33/S1/018
[11]	HUANG Fei . Resonance properties from a coupled channel meson exchange model. Chinese Physics C, 2009, 33(12): 1273-1278. doi: 10.1088/1674-1137/33/12/037
[12]	WANG Hong-Wei , MA Yu-Gang , CAI Xiang-Zhou , TIAN Wen-Dong , FANG De-Qing , CHEN Jin-Gen , GUO Wei , WANG Kun , LU Guang-Cheng , MA Chun-Wang , LIU Gui-Hua , SHI Yu , MA Er-Jun , SU Qian-Min , YAN Ting-Zhi . Structure study of light unbound nuclei near drip line. Chinese Physics C, 2008, 32(S2): 38-40.
[13]	Zhang Changhua , Gu Jinnan . Gamow-Teller Transitions of Nuclei With A=147-153. Chinese Physics C, 1996, 20(8): 745-749.
[14]	Zhang Changhua , Gu Jinnan . Gamow-Teller Transitions of Nuclei with A=147-153. Chinese Physics C, 1996, 20(S3): 295-299.
[15]	Zheng Chunkai , Hu Jimin , Xu Furong . Studies of Nuclei Far from the Stability Line with Macro-Microscopic Model. Chinese Physics C, 1996, 20(S2): 171-177.
[16]	Pan Feng , Dai Lianrong . Magnetic Moments of Odd a Nuclei in q-Deformed Nuclear Shell Model. Chinese Physics C, 1996, 20(S2): 197-204.
[17]	Zhang Changhua , Gu Jinnan . Shell Model Calculation for Light Neutron-Rich Nuclei. Chinese Physics C, 1996, 20(S2): 165-170.
[18]	Zhang Lin , Yu Hong , Shen Qixing . Angular Distribution of the Process e⁺e^-→J/ψ→γ+X(J^Pc),X→BB,and the Spin-Parity Analysis of the Resonance X. Chinese Physics C, 1996, 20(S2): 135-140.
[19]	Yu Hong , Shen Qixing . A Possible New Resonance State: Spin-parity Analysis of the X Resonance in J/ψ→X+f₀(975) Process. Chinese Physics C, 1995, 19(S1): 27-30.
[20]	Lin Chunzhen , Wu Chongshi , Zeng Jinyan . Seniority and K-Structure of the Cranked Shell Model Wave Function (I) Even-Even Nuclei. Chinese Physics C, 1988, 12(S4): 415-424.

Access

Get Citation

Si-Jie Dai, Fu-Rong Xu, Jian-Guo Li, Bai-Shan Hu and Zhong-Hao Sun. Continuum effect in resonance spectra of neutron-rich oxygen isotopes[J]. Chinese Physics C, 2018, 42(11): 114106. doi: 10.1088/1674-1137/42/11/114106

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2018-07-28

Fund

Supported by the National Key RD Program of China (2018YFA0404401), the National Natural Science Foundation of China (11320101004, 11575007), the China Postdoctoral Science Foundation (2018M630018), the CUSTIPEN (China-U.S. Theory Institute for Physics with Exotic Nuclei) funded by the U.S. Department of Energy, Office of Science (DESC0009971), and High-performance Computing Platform of Peking University

Article Metric

Article Views(1588)
PDF Downloads(18)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Continuum effect in resonance spectra of neutron-rich oxygen isotopes

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Continuum effect in resonance spectra of neutron-rich oxygen isotopes

HTML

目录