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Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation
Cao, LG; Ma, ZY; Cao, LG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
2005
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号71期号:3页码:-
摘要The low-lying isovector dipole strengths in the neutron-rich nuclei Ne-26 and Ne-28 are investigated in the quasiparticle relativistic random phase approximation. Nuclear ground-state properties are calculated in an extended relativistic mean field theory plus Bardeen-Cooper-Schrieffer (BCS) method where the contribution of the resonant continuum to pairing correlations is properly treated. Numerical calculations are tested in the case of isovector dipole and isoscalar quadrupole modes in the neutron-rich nucleus O-22. It is found that in the present calculation, low-lying isovector dipole strengths at E-x < 10 MeV in nuclei Ne-26 and Ne-28 exhaust about 4.9% and 5.8% of the Thomas-Reiche-Kuhn dipole sum rule, respectively. The centroid energy of the low-lying dipole excitation is located at 8.3 MeV in Ne-26 and 7.9 MeV in Ne-28.
部门归属Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China; China Ctr Adv Sci & Technol, World Lab, Beijing 100080, Peoples R China; Inst Atom Energy, Beijing 102413, Peoples R China; Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Mean-field Theory Rich Oxygen Isotopes Giant-resonances Sum-rule Continuum Nuclei Excitations States Qrpa
学科领域Physics
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收录类别SCI
WOS记录号WOS:000228643500015
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被引频次:27[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13870
专题理论物理所1978-2010年知识产出
通讯作者Cao, LG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
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Cao, LG,Ma, ZY,Cao, LG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.. Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation[J]. PHYSICAL REVIEW C,2005,71(3):-.
APA Cao, LG,Ma, ZY,&Cao, LG , Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China..(2005).Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation.PHYSICAL REVIEW C,71(3),-.
MLA Cao, LG,et al."Low-lying dipole modes in Ne-26,Ne-28 in the quasiparticle relativistic random phase approximation".PHYSICAL REVIEW C 71.3(2005):-.
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