ALPHA-WIDTHS IN DEFORMED-NUCLEI - MICROSCOPIC APPROACH

被引：54

作者：

DELION, DS

INSOLIA, A

LIOTTA, RJ

机构：

[1] IST NAZL FIS NUCL, I-95129 CATANIA, ITALY

[2] UNIV CATANIA, DEPT PHYS, I-95124 CATANIA, ITALY

[3] MANNE SIEGBAHN INST, S-10405 STOCKHOLM, SWEDEN

来源：

PHYSICAL REVIEW C | 1992年 / 46卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.46.1346

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：

A microscopic approach to the alpha decay problem in deformed nuclei is presented. The nuclear wave functions are calculated in the frame of the Nilsson+BCS approximation, making use of a realistic deformed mean field. A large configuration space has been employed in the calculation of the formation amplitude while the penetration process has been treated within the WKB approximation. The calculated widths agree with the experimental data within a factor of about 3. Effects due to deformation are also discussed. Applications are presented for Ra, Rn, and Th isotopes.

引用

页码：1346 / 1354

页数：9

共 44 条

[1] A SYSTEMATIC COMPARISON BETWEEN THE NILSSON AND WOODS-SAXON DEFORMED SHELL-MODEL POTENTIALS [J].

BENGTSSON, R ;

DUDEK, J ;

NAZAREWICZ, W ;

OLANDERS, P .

PHYSICA SCRIPTA, 1989, 39 (02) :196-220

[2] ALPHA-DECAY FROM DEFORMED-NUCLEI .1. FORMALISM AND APPLICATION TO GROUND-STATE DECAYS [J].

BERGGREN, T ;

OLANDERS, P .

NUCLEAR PHYSICS A, 1987, 473 (02) :189-220

[3] INTERPRETATION OF ANISOTROPIC ALPHA-EMISSION FROM ORIENTED ODD-MASS NUCLEI [J].

BERGGREN, T .

HYPERFINE INTERACTIONS, 1988, 43 (1-4) :407-414

[4] A NOTE ON THE INTERPRETATION OF ANISOTROPIC ALPHA-DECAY FROM ORIENTED ODD-MASS NUCLEI [J].

BERGGREN, T .

PHYSICS LETTERS B, 1987, 197 (1-2) :1-5

[5] ALPHA-DECAY FROM DEFORMED-NUCLEI .2. APPLICATION TO THE DECAY OF HIGH-SPIN STATES [J].

BERGGREN, T ;

OLANDERS, P .

NUCLEAR PHYSICS A, 1987, 473 (02) :221-233

[6] ON USE OF RESONANT STATES IN EIGENFUNCTION EXPANSIONS OF SCATTERING AND REACTION AMPLITUDES [J].

BERGGREN, T .

NUCLEAR PHYSICS A, 1968, A109 (02) :265-&

[7] THE (C-14,O-14) REACTION CONSIDERED AS SIMULTANEOUS PAIR-EXCHANGE OR DOUBLE-CHARGE-EXCHANGE PROCESSES [J].

BES, DR ;

DRAGUN, O ;

MAQUEDA, EE .

NUCLEAR PHYSICS A, 1983, 405 (02) :313-347

[8] SYSTEMATICS OF CLUSTER-RADIOACTIVITY-DECAY CONSTANTS AS SUGGESTED BY MICROSCOPIC CALCULATIONS [J].

BLENDOWSKE, R ;

WALLISER, H .

PHYSICAL REVIEW LETTERS, 1988, 61 (17) :1930-1933

[9] FROM ALPHA-DECAY TO EXOTIC DECAYS - A UNIFIED MODEL [J].

BLENDOWSKE, R ;

FLIESSBACH, T ;

WALLISER, H .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 339 (01) :121-128

[10]

Bohr Aa., 1975, NUCL STRUCTURE, VII

← 1 2 3 4 5 →