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On the theory of atomic ionization following alpha decay

Technical Report:

Abstract

The {alpha}-decay of the nucleus may cause atomic ionization. One of the basic assumptions of Migdal`s original paper, which is the prototype of all later calculations for this process, is to treat the {alpha}-particle outside the nuclear region classically as a point charge moving along a definite trajectory. In contrast to this picture, in the standard quantum mechanical model of the {alpha}-decay the {alpha}-particle is represented by a wave function which, after tunneling through the Coulomb barrier at the nuclear surface, propagates outwards as a spherical wave. These two pictures are compared within a three-body model, the conditions under which the full quantum mechanical calculation and its semiclassical counterpart give similar results are clarified and the origin of their possible discrepancies are pointed out. (R.P.) 8 refs.
Authors:
Revai, J; [1]  Nogami, Y [2] 
  1. Hungarian Academy of Sciences, Budapest (Hungary). Central Research Inst. for Physics
  2. McMaster Univ., Hamilton, ON (Canada). Dept. of Physics
Publication Date:
Mar 01, 1992
Product Type:
Technical Report
Report Number:
KFKI-1992-11/A
Reference Number:
SCA: 663210; PA: AIX-24:008837; SN: 93000933284
Resource Relation:
Other Information: PBD: Mar 1992
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; IONIZATION; MIGDAL THEORY; ALPHA PARTICLES; CHARGED-PARTICLE TRANSPORT; QUANTUM MECHANICS; THREE-BODY PROBLEM; TWO-BODY PROBLEM; WAVE FUNCTIONS; 663210; GROUND-STATE RADIOACTIVITY
OSTI ID:
10119708
Research Organizations:
Hungarian Academy of Sciences, Budapest (Hungary). Central Research Inst. for Physics
Country of Origin:
Hungary
Language:
English
Other Identifying Numbers:
Other: ON: DE93613335; TRN: HU9215388008837
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[18] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Revai, J, and Nogami, Y. On the theory of atomic ionization following alpha decay. Hungary: N. p., 1992. Web.
Revai, J, & Nogami, Y. On the theory of atomic ionization following alpha decay. Hungary.
Revai, J, and Nogami, Y. 1992. "On the theory of atomic ionization following alpha decay." Hungary.
@misc{etde_10119708,
title = {On the theory of atomic ionization following alpha decay}
author = {Revai, J, and Nogami, Y}
abstractNote = {The {alpha}-decay of the nucleus may cause atomic ionization. One of the basic assumptions of Migdal`s original paper, which is the prototype of all later calculations for this process, is to treat the {alpha}-particle outside the nuclear region classically as a point charge moving along a definite trajectory. In contrast to this picture, in the standard quantum mechanical model of the {alpha}-decay the {alpha}-particle is represented by a wave function which, after tunneling through the Coulomb barrier at the nuclear surface, propagates outwards as a spherical wave. These two pictures are compared within a three-body model, the conditions under which the full quantum mechanical calculation and its semiclassical counterpart give similar results are clarified and the origin of their possible discrepancies are pointed out. (R.P.) 8 refs.}
place = {Hungary}
year = {1992}
month = {Mar}
}