Abstract
The electron density at the positron is a relevant quantity for characterizing a positron-electron correlated pair in matter, since both the intrinsic decay rates in triplet and singlet state and the fine structure interval depend on it. Information about this quantity is generally obtained through magnetic quenching experiments. In the present work we discuss other techniques, based on the lifetime as well as on three-gamma spectroscopy, which do not involve the Zeeman effect in positronium.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V.I. Goldanskii: At. Energy Rev 6/1 (Int. At. Energy Agency, Wien 1968)
A. Dupasquier: In In Positron Solid State Physics, ed. by W. Brandt, A. Dupasquier (North-Holland, Amsterdam 1983) pp. 510–564
T. McMullen, M.T. Stott: Can. J. Phys. 61, 504–507 (1983)
W. Brandt, S. Berko, W.W. Walker: Phys. Rev. 120, 1289–1295 (1960)
A.P. Mills: J. Chem. Phys. 62, 2646–2659 (1975)
A. Bisi, G. Consolati, G. Gambarini, L. Zappa: Nuovo Cimento 6D, 183–192 (1985)
G. Consolati, F. Quasso: J. Phys. C 21, 4143–4151 (1988)
A. Bisi, G. Consolati, L. Zappa: Hyperfine Interact. 36, 29–37 (1987)
G. Consolati, F. Quasso: J. Phys. Condensed Matter 2, 3941–3946 (1990)
S. Rochanakij, D.M. Schrader: In Positron Annihilation, ed. by P.C. Jain, R.M. Singru, K.P. Gopinathan (World Scientific, Singapore 1985) pp. 193, 194
R.S. Brusa, A. Dupasquier, S. Oss: In Positron Annihilation, ed. by L. Dorikens-Vanpraet, M. Dorikens, D. Segers (World Scientific, Singapore 1989) pp. 775–777
D.A. Diehl, D.M. Schrader: In Positron Annihilation, ed. by L. Dorikens-Vanpraet, M. Dorikens, D. Segers (World Scientific, Singapore 1989) pp. 537–539
O. Mogensen: Chem. Phys. Lett. 163, 145–150 (1989)
O. Halpern: Phys. Rev. 94, 904–907 (1954)
P. Kirkegaard, M. Eldrup: Comp. Phys. Commun. 7, 401–409 (1974)
I. Billard, J.Ch. Abbè, G. Duplatre: Chem Phys. 127, 273–278 (1988)
G. De Blonde, S.Y. Chuang, B.G. Hogg, D.P. Kerr, D.M. Miller: Can. J. Phys. 50, 1619–1622 (1972)
M. Bertolaccini, C. Bussolati, L. Zappa: Phys. Rev. 139, A696-A699 (1965)
C. Dauwe, M. Kwete: In Positron Annihilation, ed. by P.G. Coleman, S.C. Sharma, L.M. Diana (North-Holland, Amsterdam 1982) pp. 663–665
T. Goworek, C. Rybka, J. Wawryszczuk, R. Wasiewicz: Chem. Phys. Lett. 106, 482–487 (1984)
G. Consolati, F. Quasso: Solid State Commun. 67, 1113–1117 (1988)
A. Bisi, A. Fiorentini, L. Zappa: Phys. Rev. 134, A328-A331 (1964)
D.M. Schrader: In Positron and Positronium Chemistry, ed. by D.M. Schrader, Y.C. Jean (Elsevier, Amsterdam 1988) pp. 27–91
W. Bauer et al.: In Positron Annihilation, ed. by L. Dorikens-Vanpraet, M. Dorikens, D. Segers (World Scientific, Singapore 1989) pp. 579–582
J. de Vries, A. Zecca, R.S. Brusa, R.G. Grisenti, S. Oss, A. van Veen: In Positron Annihilation, ed. by L. Dorikens-Vanpraet, M. Dorikens, D. Segers (World Scientific, Singapore 1989) pp. 654–656