α decays to ground and excited states of heavy deformed nuclei

被引：98

作者：

Denisov, V. Yu. ^{[1
]}

Khudenko, A. A. ^{[1
]}

机构：

[1] Inst Nucl Res, UA-03680 Kiev, Ukraine

来源：

PHYSICAL REVIEW C | 2009年 / 80卷 / 03期

关键词：

HALF-LIVES; SYSTEMATICS;

D O I：

10.1103/PhysRevC.80.034603

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：

The experimental data for alpha-decay half-lives to ground and excited states of deformed nuclei with 222 <= A <= 252 and 88 <= Z <= 102 are analyzed in the framework of the unified model for alpha decay and alpha capture. The branching ratios to excited states depend on the energy and the angular momentum of the alpha particle. The evaluated branching ratios for 0(g.s.)(+) -> 0(g.s.)(+), 2(+), 4(+) alpha transitions in even-even nuclei agree with the experimental data. The experimental and calculated branching ratios for alpha transitions into more highly excited states are similar.

引用

页数：10

共 30 条

[1]

[Anonymous], 1949, THEORY ATOMIC NUCL N

[2] The NUBASE evaluation of nuclear and decay properties [J].

Audi, G ;

Bersillon, O ;

Blachot, J ;

Wapstra, AH .

NUCLEAR PHYSICS A, 2003, 729 (01) :3-128

[3] SYSTEMATICS OF ALPHA-CLUSTER STATES ABOVE DOUBLE SHELL CLOSURES [J].

BUCK, B ;

MERCHANT, AC ;

PEREZ, SM .

PHYSICAL REVIEW C, 1995, 51 (02) :559-565

[4] UNIFIED TREATMENT OF SCATTERING AND CLUSTER STRUCTURE IN ALPHA+CLOSED SHELL NUCLEI - NE-20 AND TI-44 [J].

BUCK, B ;

JOHNSTON, JC ;

MERCHANT, AC ;

PEREZ, SM .

PHYSICAL REVIEW C, 1995, 52 (04) :1840-1844

[5] Alpha decays of neutron deficient isotopes in the region N>82>Z [J].

Buck, B ;

Merchant, AC ;

Perez, SM .

PHYSICAL REVIEW C, 1996, 54 (04) :2063-2065

[6] The generalized liquid drop model alpha-decay formula: Predictability analysis and superheavy element alpha half-lives [J].

Dasgupta-Schubert, N. ;

Reyes, M. A. .

ATOMIC DATA AND NUCLEAR DATA TABLES, 2007, 93 (06) :907-930

[7] MICROSCOPIC DESCRIPTION OF THE ANISOTROPY IN ALPHA-DECAY [J].

DELION, DS ;

INSOLIA, A ;

LIOTTA, RJ .

PHYSICAL REVIEW C, 1994, 49 (06) :3024-3028

[8] Systematics of the α-decay to rotational states -: art. no. 014315 [J].

Delion, DS ;

Peltonen, S ;

Suhonen, J .

PHYSICAL REVIEW C, 2006, 73 (01)

[9] α-Decay half-lives, α-capture, and α-nucleus potential [J].

Denisov, V. Yu. ;

Khudenko, A. A. .

ATOMIC DATA AND NUCLEAR DATA TABLES, 2009, 95 (06) :815-835

[10] α-decay half-lives: Empirical relations [J].

Denisov, V. Yu. ;

Khudenko, A. A. .

PHYSICAL REVIEW C, 2009, 79 (05)

← 1 2 3 →