Ratio of electron capture to positron emission in the elementary-particle treatment of nuclear. beta. decay

Journal Article · Mon Jan 31 23:00:00 EST 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.809· OSTI ID:7124037

McFarland, W B; Repko, W W

Nuclear size effects and Coulomb corrections are included in the expression for the electron capture rate R/sub epsilon/ by using the ''elementary-particle'' approach of Armstrong and Kim. As an example, we use our result together with the corresponding expression for the positron emission rate R/sub ..beta../sup +/ to compute R/sub epsilon//R/sub ..beta pi.. for certain 1/2/sup +/ ..-->.. 1/2/sup +/ and 1/2/sup +/ ..-->.. 3/2/sup +/ transitions in Gd. Our ratios are in good agreement with conventional impulse-approximation calculations and, for a wide range of nuclear parameters, do not exhibit the anomalies seen experimentally.

• Research Organization: Department of Physics, Michigan State University, East Lansing, Michigan 48824
• OSTI ID: 7124037
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651812 -- Nuclear Properties & Reactions
A=150-189
Theoretical-- Radioactive Decay-- (-1987)
653005* -- Nuclear Theory-- Radioactive Decay
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
BETA DECAY
BETA-PLUS DECAY
CORRECTIONS
COULOMB CORRECTION
DECAY
ELECTRON CAPTURE DECAY
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FUNCTIONS
GADOLINIUM
IMPULSE APPROXIMATION
INTERACTIONS
LEPTONIC DECAY
LEPTONS
MATRIX ELEMENTS
METALS
PARTICLE DECAY
POSITRONS
RARE EARTHS
WAVE FUNCTIONS
WEAK INTERACTIONS
WEAK PARTICLE DECAY