Double Photoproduction of Neutral Pions on a Proton and a Deuteron

R. R. Dusaev, M. V. Egorov

Research output: Contribution to journalArticle

Abstract

Total cross sections of electromagnetic π0π0 formation processes on a proton and a deuteron in the photon energy range from threshold to Eγ ≤ 2 GeV are calculated. Construction of the single-particle photoproduction operator is based on a calculation of Born and resonance contributions calculated in the tree approximation. The main parameters of the nucleon resonances were found from the Particle Data Group (PDG) compilation. A satisfactory description of the р(γ, π0π0)р cross section was achieved assuming a leading role for the pion rescattering process π+π → π0π0, whose contribution amounted to more than 1 μb in the vicinity of the D13(1520) resonance.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalRussian Physics Journal
Volume60
Issue number1
DOIs
Publication statusAccepted/In press - 8 May 2017

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photoproduction
deuterons
pions
protons
cross sections
electromagnetism
operators
thresholds
photons
approximation
energy

Keywords

  • baryon resonances
  • double photoproduction of pions
  • pion scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Double Photoproduction of Neutral Pions on a Proton and a Deuteron. / Dusaev, R. R.; Egorov, M. V.

In: Russian Physics Journal, Vol. 60, No. 1, 08.05.2017, p. 1-11.

Research output: Contribution to journalArticle

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