ALPHA-DECAY AS A FISSION-LIKE PROCESS

被引：85

作者：

POENARU, DN ^{[1
]}

IVASCU, M ^{[1
]}

SANDULESCU, A ^{[1
]}

机构：

[1] UNIV FRANKFURT,INST THEORET PHYS,D-6000 FRANKFURT 70,FED REP GER

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 1979年 / 5卷 / 10期

关键词：

D O I：

10.1088/0305-4616/5/10/005

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：

Alpha decay is considered to be a very asymmetric fission process with fragments of different charge densities. Q-values and half-lives are computed in the two-centre parametrisation by using the liquid-drop-model generalisation replacing the surface energy by a folded Yukawa plus exponential potential. An empirical shell correction is introduced to obtain the experimental Q values exactly. The experimental half-lives for alpha decay of Ra, Th, U, Pu, Cm, Cf, Fm and No even-even isotopes are well reproduced.

引用

页码：L169 / L173

页数：5

共 8 条

[1] The mechanism of nuclear fission [J].

Bohr, N ;

Wheeler, JA .

PHYSICAL REVIEW, 1939, 56 (05) :426-450

[2] FUNNY HILLS - SHELL-CORRECTION APPROACH TO NUCLEAR SHELL EFFECTS AND ITS APPLICATIONS TO FISSION PROCESS [J].

BRACK, M ;

JENSEN, AS ;

PAULI, HC ;

STRUTINSKY, VM ;

WONG, CY ;

DAMGAARD, J .

REVIEWS OF MODERN PHYSICS, 1972, 44 (02) :320-+

[3] THEORIES OF ALPHA-DECAY [J].

JACKSON, DF ;

RHOADESBROWN, M .

ANNALS OF PHYSICS, 1977, 105 (01) :151-186

[4]

KRAPPE HJ, 1978, LAUR782289 LOS AL SC

[5] LIQUID-DROP MODEL DEFORMATION ENERGIES OF NUCLEI WITH AXIAL SYMMETRY AND REFLECTION ASYMMETRY [J].

POENARU, DN ;

IVASCU, M .

COMPUTER PHYSICS COMMUNICATIONS, 1978, 16 (01) :85-91

[6] DEFORMATION ENERGIES FOR NUCLEI WITH DIFFERENT CHARGE-TO-MASS RATIO [J].

POENARU, DN ;

MAZILU, D ;

IVASCU, M .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1979, 5 (08) :1093-1106

[7]

Rytz A., 1973, Atomic Data and Nuclear Data Tables, V12, P479, DOI 10.1016/0092-640X(73)90004-1

[8]

Wapstra A. H., 1977, Atomic Data and Nuclear Data Tables, V19, P177, DOI 10.1016/0092-640X(77)90020-1

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