| Zugriffsnummer | 44104 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Polarization effects in bound-free pair production |
| Autor(in); Institution |
Sommerfeldt, Jonas; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY
Müller, Robert A.; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY
Artemeyev, A. N.; Universität Kassel, Institut für Physik und CINSaT, Kassel, GERMANY
Surzhykov, Andrey; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY
|
| Quelle/Jahr | Physical Review A: 100 (2019), 4, 1 - 8 |
| Artikelnummer | 042511 |
| ISSN | 2469-9926 (PRINT) ; 2469-9934 (ONLINE) |
| DOI | |
| URL | |
| Verlag | Woodbury, NY: American Physical Society (APS) |
| Freie Schlagworte | electron-positron pair production ; Dirac equation ; stron electromagnetic fields |
| Zusammenfassung | We present a theoretical study of bound-free electron-positron pair production in the interaction of γ rays with bare ions. Special attention is paid to the longitudinal polarization of both the emitted positrons and the produced hydrogenlike ions. To evaluate this polarization we employed exact solutions of the relativistic Dirac equation and treat the electron-photon coupling within the framework of first-order perturbation theory. Detailed calculations have been performed for both low- and high-Z ions and for a wide range of photon energies. The results of these calculations suggest that bound-free pair production can be a source of strongly polarized positrons and ions. |
| Themenbereich der Metrologie | Zeit und Frequenz |