Chudakov effect for the most probable value of high-energy electron–positron pair ionization loss in thin targets

S. V. Trofymenko

doi:10.1140/epjc/s10052-023-11181-y

2022 Impact factor 4.4

Particles and Fields

Open Access

Eur. Phys. J. C (2023) 83: 32
https://doi.org/10.1140/epjc/s10052-023-11181-y

Regular Article - Experimental Physics

Chudakov effect for the most probable value of high-energy electron–positron pair ionization loss in thin targets

S. V. Trofymenko¹^,2^a

¹ National Science Center, Kharkiv Institute of Physics and Technology, 1 Akademichna st., 61108, Kharkiv, Ukraine
² Karazin Kharkiv National University, 4 Svobody sq., 61022, Kharkiv, Ukraine

^a trofymenko@kipt.kharkov.ua

Received: 24 September 2022
Accepted: 27 December 2022
Published online: 17 January 2023

Abstract

The ionization loss of a high-energy electron–positron pair in thin targets is considered. The targets not thinner than about 10 m are discussed. The analogue of the Landau distribution function is derived for this loss under the condition when the Chudakov effect of the pair ionization loss suppression is manifested. Expression for the most probable value of the pair ionization loss is obtained. It is shown that the magnitude of Chudakov effect for can be noticeably different from the magnitude of this effect for the restricted mean value of the pair ionization loss.

© The Author(s) 2023

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