Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration

ZHANG Shuang-Quan; PENG Jing; MENG Jie

Chinese Physics C> 2004, Vol. 28> Issue(2) : 161-166

Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration

School of Physics,Peking University,Beijing 100871,China2 Institute of Theoretical Physics,Chinese Academy of Science,Beijing 100080,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Based on the triaxial particle-rotor model (PRM), the chiral doublet bands with symmetric particle-hole configurations πg9/2νg-1 9/2, πh11/2νh-1 11/2 and asymmetric configurations πg-1 9/2νh11/2, πh -1 11/2νi13/2 have been investigated, including their rotation spectra, the relations between spin and rotational frequency, and the reduced B(E2),B(M1) transition probabilities. These configurations correspond to regions A～100, A～130 and A～170 in nuclear chart respectively. It is observed that the larger angular momentum provided by the valence nucleons, the higher the spin corresponding to the appearance of the chiral doublet bands, and the broader their spin interval. The chiral bands based on asymmetric configurations exhibit quite similar properties as those on symmetric ones, and can be discovered in future in-beam γ experiments.

References

[1]

.Frauendorf S,MENGJ.Nucl.Phys.,1997,A617 :1312.Johnson A et al.Phys.Lett.,1971,348 :6053.Twin P J et al.Phys.Rev.Lett.,1986,57 :8114.Frauendorf S,MENGJ,Reif J.Proceedings of the Conference on Phys-ics from Largeγ-Ray Detector Arrays,vol.Ⅱ,1994,p.525.Petrache C M,Bazzacco D,Lunardi S et al.Nucl.Phys.,1996,A597 :1066.Hecht A A,Beausang C W,Zyromski K E et al.Phys.Rev.,2001,C63 :051302 (R)7.Starosta K,Koike T,Chiara C J et al.Phys.Rev.Lett.,2001,86 :9718.Koike T,Starosta K,Chiara C J et al.Phys.Rev.,2003,C67 :0443199.Koike T,Starosta K,Chiara C J et al.Phys.Rev.,2001,C63 :061304 (R)10.Bark R A,Baxter A M,Byrne A P et al.Nucl.Phys.,2001,A691 :57711.LI X F,MA YJ,LIU Y Z et al.Chin.Phys.Lett.,2002,19 :177912.Mergel E,Petrache C M,Lo Bianco G et al.Eur.Phys.J.,2002,A15 :41713.Koike T,Starosta K,Vaman C et al.AIP Conf.Proc.,2003,656(1) :16014.Wheldon C,Dracoulis GD,Newman R T et al.Nucl.Phys.,2002,A699 :41515.Frisk H,Bengtsson R.Phys.Lett.,1987,B196 :1416.Frauendorf S,MENGJ.Z.Phys.,1996,A365 :26317.Frauendorf S.Nucl.Phys.,2000,A677 :11518.Dimitrov V,Frauendorf S,Dênau F.Phys.Rev.Lett.,2000,84 :573219.Madokoro H,MENGJ,Matsuzaki M et al.Phys.Rev.,2000,C62 :06130120.Olbratowski P,Dobaczewski J,Dudek J et al.Acta Phys.Polonica,2002,B33 :38921.PENGJ,MENGJ,ZHANG S Q.Phys.Rev.,2003,C68 :04432422.PENGJ,MENGJ,ZHANG S Q.Chin.Phys.Lett.,2003,20 :122323.Bohr A,Mottelson B R.Nuclear Structure Benjamin,New York,1975,Vol.2

[1]	QI Bin , ZHANG Shang-Quan , WANG Shou-Yu , MENG Jie . Chiral Bands in Particle Rotor Model with Pairing Correlations. Chinese Physics C, 2006, 30(S2): 112-114.
[2]	PENG Jing , MENG Jie , ZHANG Shuang-Quan . Triaxial Deformation in Candidate Nuclei of the Chiral Doublet Bands. Chinese Physics C, 2004, 28(S1): 81-83.
[3]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach(Ⅴ) Three -Body Force Effect on Single-Particle Potential. Chinese Physics C, 2003, 27(7): 585-589.
[4]	ZUO Wei , Lombardo U , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅳ) Single-Particle Potential and Effective Mass. Chinese Physics C, 2003, 27(5): 416-420.
[5]	HUO Lei , ZHANG Jing-Bo , ZHANG Wei-Ning , CHEN Xiang-Jun , TANG Gui-Xin . Anisotropic Transverse Flow and Multiparticle Azimuthal Correlation in Heavy Ion Collisions. Chinese Physics C, 2003, 27(3): 249-252.
[6]	ZHANG Miao-Jing , SHEN Peng-Nian , LIU Xian-Hui , KONG Fan-Xin . Study about Light Hypernuclei and YN Interaction Based on Chiral SU(3) Quark Model. Chinese Physics C, 2001, 25(8): 743-753.
[7]	Xing Zheng , Wang Zixing , Chen Xingqu , Xu Jinzhang . Influence of Configuration Admixtures on Superdeformed Triaxial Bands. Chinese Physics C, 1998, 22(11): 1029-1034.
[8]	Yun Xiuqing , Zhang Zongye , Yu Youwen , Shen Pengnian . Structure of Dibaryon in Chiral-Quark Model. Chinese Physics C, 1998, 22(8): 718-725.
[9]	Huo Lei , Liu Yiming , Zhang Weining . Anisotropic Distribution of Final State Particles in High Energy Heavy Ion Collisions. Chinese Physics C, 1996, 20(9): 812-818.
[10]	Yu Youwen , Zhang Zongye , Shen Pengnian , Dai Lianrong . Effective Quark-Quark Interaction and Chiral Symmetry. Chinese Physics C, 1995, 19(5): 431-437.
[11]	Liu Lianggang , Ma Weixing , Jiang Huanqing . The Particle-Hole and Delta-Hole Excitations in Nuclear Matter. Chinese Physics C, 1994, 18(11): 1027-1034.
[12]	ZHANG Qing-Lan , QIU Xi-Jun . Glant Monopole and Quadrupole States in a Chiral Breaking Field Theory. Chinese Physics C, 1992, 16(7): 615-622.
[13]	HAO San-Ru , LI Wei . INFINITE CONFORMAL SYMMETRIES AND RIEMANN-HILBERT TRANSFORMATION IN SUPER PRINCIPAL CHIRAL MODEL. Chinese Physics C, 1989, 13(4): 320-327.
[14]	LUO Xiang-Qian , CHEN Qi-Zhou , GUO Shuo-Hong . VACUUM OF 2+1 DIMENSIONAL SU(2) LGT WITH FERMIONS AND SPONTANEOUS CHIRAL SYMMETRY BREAKING. Chinese Physics C, 1989, 13(4): 328-333.
[15]	LIU Bao-Hua , LI Jia-Rong . SELF-CONSISTENCY EQUATIONS FOR THE ORDER PARAMENTER AND THE RESTORATION OF THE CHIRAL SYMMETRY. Chinese Physics C, 1988, 12(4): 471-476.
[16]	DONG Shao-Jing . NORMAL FUZZY LATTICE ——A PROBABLE FERMIONIC ACTION WITHOUT MULTIPLICITY BUT REMAINS CONVARIANT AND CHIRAL LIMIT. Chinese Physics C, 1987, 11(4): 543-548.
[17]	ZHU Chao-Yuan , HU Shi-Ke . EFFECTIVE-POTENTIAL STUDY OF DYNAMICAL CHIRAL SYMMETRY BREAKING IN QUANTUM CHROMODYNAMICS. Chinese Physics C, 1987, 11(4): 451-461.
[18]	WU Yong-Shi , GE Mo-Lin . NONLOCAL INFINITELY CONSERVED CURRENTS AND KAC-MOODY ALGEBRAIC STRUCTURE OF O(N) SUPER-CHIRAL MODEL. Chinese Physics C, 1983, 7(4): 427-436.
[19]	ZHANG QI-REN . PARTIAL RESTORATION OF THE CHIRAL SYMMETRY AND THE π CONDENSATION IN NUCLEAR MATTER. Chinese Physics C, 1981, 5(3): 314-320.
[20]	YUAN TU-NAN , TU TUNG-SHENG . STRONG INTERACTION AND CHIRAL GAUGE FIELD. Chinese Physics C, 1978, 2(6): 481-487.

Access

Get Citation

ZHANG Shuang-Quan, PENG Jing and MENG Jie. Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration[J]. Chinese Physics C, 2004, 28(2): 161-166.

ZHANG Shuang-Quan, PENG Jing and MENG Jie. Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration[J]. Chinese Physics C, 2004, 28(2): 161-166. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-06-02
Revised: 1900-01-01

Article Metric

Article Views(2871)
PDF Downloads(568)
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

Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration

Corresponding author: MENG Jie,

School of Physics,Peking University,Beijing 100871,China2 Institute of Theoretical Physics,Chinese Academy of Science,Beijing 100080,China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China

Received Date: 2003-06-02

Accepted Date: 1900-01-01

Available Online: 2004-02-05

Abstract: Based on the triaxial particle-rotor model (PRM), the chiral doublet bands with symmetric particle-hole configurations πg9/2νg-1 9/2, πh11/2νh-1 11/2 and asymmetric configurations πg-1 9/2νh11/2, πh -1 11/2νi13/2 have been investigated, including their rotation spectra, the relations between spin and rotational frequency, and the reduced B(E2),B(M1) transition probabilities. These configurations correspond to regions A～100, A～130 and A～170 in nuclear chart respectively. It is observed that the larger angular momentum provided by the valence nucleons, the higher the spin corresponding to the appearance of the chiral doublet bands, and the broader their spin interval. The chiral bands based on asymmetric configurations exhibit quite similar properties as those on symmetric ones, and can be discovered in future in-beam γ experiments.

HTML

Reference (1)

Chiral Doublet Bands in Nuclei with Asymmetric Particle-Hole Configuration

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article