Speaker
Mr
I V Fartushev
(Tomsk State Pedagogical University)
Description
Relativistic charged particle passing through a crystal at small incident angle with respect to a crystal plane can be captured into channeling state [1-3]. The channeled particle has the transverse discrete energy levels. Due to the transition from one transverse energy level to another it can emit a photon. In higher-order of the perturbation theory, instead of the photon it can emit an e+e- pair [3,4].
In the [3] the pair creation by the channeled charged particles was considered in semi classical approximation and in the [2] it was considered as channeling radiation and following e+e- pair creation by photon in a crystal.
In the present paper for the first time we considered electron – positron pair creation by the channeled positron and positron in a frame work of QED. The calculation is similar to the calculation of e+e- pairs in the recombination of the electron with the nucleus [4,5].
1. J. Lindhard Kgl. Dan. Vidensk. Selsk. Mat. Fys. Medd. 34 № 14 (1965).
2. Cue, J .C.Kimball, Phys.Lett. 124 (1987) 191.
3. V. N. Baier, V. M. Katkov, V. M. Strakhovenko. Electromagnetic Processes at High Energies in Oriented Single Crystals, World Scientific Publishing Co, Singapore, 1998.
4. Yu. P. Kunashenko , I.V. Fartushev. Izvestiya vuzov. Fizika. 56 (2013) 50.
5. Yu. P. Kunashenko , I.V. Fartushev. Izvestiya vuzov. Fizika. 57 (2014) 56.
Author
Yuri Kunashenko
(Tomsk State Pedagogical University Tomsk Polytechnic University)
Co-author
Mr
I V Fartushev
(Tomsk State Pedagogical University)
