Fluctuation properties of the strength function associated with the giant quadrupole resonance in 208Pb

被引：6

作者：

Aiba, Hirokazu ^{[1
]}

Matsuo, Masayuki ^{[2
]}

Nishizaki, Shigeru ^{[3
]}

Suzuki, Toru ^{[4
]}

机构：

[1] Kyoto Koka Womens Coll, Ukyo Ku, Kyoto 6150882, Japan

[2] Niigata Univ, Fac Sci, Dept Phys, Niigata 9502181, Japan

[3] Iwate Univ, Fac Humanities & Social Sci, Morioka, Iwate 0208550, Japan

[4] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan

来源：

PHYSICAL REVIEW C | 2011年 / 83卷 / 02期

关键词：

SINGLE-PARTICLE STATES;

D O I：

10.1103/PhysRevC.83.024314

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：

We performed fluctuation analysis by means of the local scaling dimension for the strength function of the isoscalar (IS) giant quadrupole resonance (GQR) in Pb-208 where the strength function is obtained by the shell model calculation including 1p1h and 2p2h configurations. It is found that at almost all energy scales, fluctuation of the strength function obeys the Gaussian orthogonal ensemble (GOE) random matrix theory limit. This is contrasted with the results for the GQR in Ca-40, where at the intermediate energy scale of about 1.7 MeV, a deviation from the GOE limit was detected. It is found that the physical origin for this different behavior of the local scaling dimension is ascribed to the difference in the properties of the damping process.

引用

页数：7

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