[1] Casten R F 1985 Nucl. Phys. A 443 1

[2] de Shalit A and Goldhaber M 1953 Phys. Rev. 92 1211

[3] Talmi I 1962 Rev. Mod. Phys. 34 704

[4] Federman P and Pittel S 1977 Phys. Lett. B 69 385

[5] Zhang J Y et al 1989 Phys. Lett. B 227 1

[6] Brenner D S et al 1990 Phys. Lett. B 243 1

[7] Van Isacker P, Warner D D and Brenner D S 1995
Phys. Rev. Lett. 74 4607

[8] Ma L, Zhou X H et al 2005 Chin. Phys. Lett. 23 1727

[9] Casten R F 1986 Phys. Rev. C 33 1819

[10] Casten R F and Zamfir N V 1993 Phys. Rev. Lett.
70 402

[11]Zhao Y M, Casten R F and Arima A 2000 Phys. Rev. Lett.
85 720

[12] Cakirli R B and Casten R F 2006 Phys. Rev. Lett.
96 132501

[13] Zhao Y M, Arima A and Casten R F 2001 Phys. Rev. C
63 067302

[14]Zhang S Q, Zhou S G and Xu F R 2004 High Energy Phys.
Nucl. Phys. 28 516

[15] Raman S et al 2001 Atom. Data Nucl. Data Tables 78 1

[16] Herzberg R D 2004 J. Phys. G 30 R123

[17] Ogawa M et al 1978 Phys. Rev. Lett. 41 289

[18] Casten R F et al 1981 Phys. Rev. Lett. 47 1433

[19] Gupta J B 1993 Phys. Rev. C 47 1489

[20] Arima A and Iachello F 1975 Phys. Rev. Lett. 35 1069

[21] Otsuka T et al 1978 Phys. Lett. B 76 139

[22]Casten R F et al 1985 Nucl. Phys. A 444 133

[23] Mu L Z and Liu Y X 2005 Chin. Phys. Lett. 22 1354