π-Meson production by photons at He3 in current-algebra model

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Abstract

In an analysis of the photoproduction of π-mesons at He3 in the current-algebra model with hard π-mesons, the amplitude for the process is derived with the help of the Ward identity, which follows from the hypothesis of the partial conservation of axial-vector current and current algebra. Only the π-meson and the He3 and H3 nuclei are taken into account in the sums over intermediate states. The contact terms are important for an explanation of the experimental data. The differential cross sections are calculated for the photoproduction of π+-mesons at He3; they agree satisfactorily with the experimental data for low energies (Eγ<240 MeV) and for low-momentum transfer (|t|<2.5 F-2).

Original languageEnglish
Pages (from-to)989-994
Number of pages6
JournalSoviet Physics Journal
Volume18
Issue number7
DOIs
Publication statusPublished - Jul 1975

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current algebra
mesons
photons
photoproduction
vector currents
momentum transfer
conservation
nuclei
cross sections
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

π-Meson production by photons at He3 in current-algebra model. / Serdyutskii, Vitaly Andreevich; Tabachenko, A. N.

In: Soviet Physics Journal, Vol. 18, No. 7, 07.1975, p. 989-994.

Research output: Contribution to journalArticle

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