| Автор | U D Jentschura |
| Автор | G Soff |
| Автор | P Indelicato |
| Дата выпуска | 2002-06-14 |
| dc.description | We describe a simplified derivation for the relativistic corrections of order α<sup>4</sup> for a bound system consisting of two spinless particles. We devote special attention to pionium, the bound system of two oppositely charged pions. The leading quantum electrodynamic (QED) correction to the energy levels is of the order of α<sup>3</sup> and due to electronic vacuum polarization. We analyse further corrections due to the self-energy of the pions and to recoil effects, and we give a complete result for the scalar-QED leading logarithmic corrections which are due to virtual loops involving only the scalar constituent particles (the pions); these corrections are of the order of α<sup>5</sup>ln α for S states. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Breit Hamiltonian and quantum electrodynamic effects for spinless particles |
| Тип | paper |
| DOI | 10.1088/0953-4075/35/11/305 |
| Electronic ISSN | 1361-6455 |
| Print ISSN | 0953-4075 |
| Журнал | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Том | 35 |
| Первая страница | 2459 |
| Последняя страница | 2468 |
| Выпуск | 11 |
