Generation of relativistic positronium atoms by high-energy photons and charged particles in aligned crystals

被引：0

作者：

Kunashenko, YP ^{[1
]}

Pivovarov, YL ^{[1
]}

机构：

[1] Tomsk Polytech Univ, Inst Phys Nucl, Tomsk 634050, Russia

来源：

KORUS 2000: 4TH KOREA-RUSSIA INTERNATIONAL SYMPOSIUM ON SCIENCE AND TECHNOLOGY, PT 1, PROCEEDINGS: ARCHITECTURE MATHEMATICS PHYSICS CHEMISTRY BIOLOGY AND ECOLOGY | 2000年

关键词：

singlet and triplet relativistic positronium atoms; photons and relativistic charged particles; crystal target;

D O I：

10.1109/KORUS.2000.865928

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We consider different generation mechanisms of relativistic positronium (Ps) atoms (positronium atoms moving with relativistic velocity) by high-energy photons and charged particles in aligned crystals. Coherent effect in a crystal leads to sufficient enhancement in Ps yield at certain photon energies. The energy spectrum of singlet and triplet Ps atoms generated by high-energy charged particles penetrating through a crystal contains strong peaks at the certain Ps energies. In addition, we discuss possible new mechanism of Ps generation via transitions between bound states of a channeled electron (positron) in a crystal. Possible experiments are discussed.

引用

页码：88 / 93

页数：6

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