On the theory of coherent pair production in crystals in the presence of acoustic waves

A. R. Mkrtchyan, A. A. Saharian, L. Sh Grigoryan, B. V. Khachatryan

Research output: Contribution to journalArticle

9 Citations (Scopus)


The influence of hypersonic waves excited in a single crystal is investigated on the process of electron-positron pair creation by high-energy photons. The coherent part of the corresponding differential cross-section is derived as a function of the amplitude and wave number of the hypersound. The values of the parameters are specified for which the latter affects remarkably on the pair creation cross-section. It is shown that under certain conditions the presence of hypersonic waves can result in enhancement of the process cross-section.

Original languageEnglish
Pages (from-to)2571-2580
Number of pages10
JournalModern Physics Letters A
Issue number39
Publication statusPublished - 21 Dec 2002
Externally publishedYes



  • Interaction of particles with matter
  • Physical effects of ultrasonics

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Statistical and Nonlinear Physics

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