ANNIHILATION OF POSITRONIUM IN ALPHA-SIO2 INVESTIGATED BY COMBINED ANGULAR-CORRELATION AND LIFETIME MEASUREMENTS

Authors
DANNEFAER S FRIESSNEGG T KERR D UEDONO A LI XH TANIGAWA S
Citation
S. Dannefaer et al., ANNIHILATION OF POSITRONIUM IN ALPHA-SIO2 INVESTIGATED BY COMBINED ANGULAR-CORRELATION AND LIFETIME MEASUREMENTS, Physical review. B, Condensed matter, 54(21), 1996, pp. 15051-15055
Citations number
10
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
21
Year of publication
1996
Pages
15051 - 15055
Database
ISI
SICI code
0163-1829(1996)54:21<15051:AOPIAI>2.0.ZU;2-X
Abstract
By combining angular correlation results of the positron annihilation quanta with lifetime results it is found that a weak but long-lived (5 99 +/- 10 ps) lifetime component can be correlated with the para-posit ronium peak in angular correlation measurements when taking into accou nt both pickoff annihilation and conversion of positronium. Conversion has not been considered in earlier works.