Calculations of Annihilation Rate of o-Ps in Pick-Off Process

• Authors: J. Dryzek
• Languages of publication: EN

Abstracts

EN

In the paper we suggest the procedure of calculation of the o -Ps lifetime in the pick-off process. The procedure follows the scheme proposed by Tao but we employed the correct positron wave function. We extended our calculations for the case when the o-Ps is overlapping the core region of hydrogen and carbon atoms. The obtained dependence between the lifetime and the radius of the o-Ps fits much better to the experimental one observed in silica gel than the original Tao relation.

Keywords

EN

78.70.Bj; 71.60.+z

Discipline

• 71.60.+z: Positron states(for positron annihilation, see 78.70.Bj)
• 78.70.Bj: Positron annihilation(for positron states, see 71.60.+z in electronic structure of bulk materials; for positronium chemistry, see 82.30.Gg in physical chemistry and chemical physics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1999
• Volume: 95
• Issue: 4
• Pages: 527-532

Dates

published

1999-04

Contributors

author

J. Dryzek

• Institute of Nuclear Physics, Radzikowskiego 152, 31-342 Kraków, Poland

Identifiers

DOI

10.12693/APhysPolA.95.527