Photoproduction of the A2 meson in the reaction γp→nπ+π+π- and an estimate of the A2 γπ width

Y. Eisenberg, B. Haber, B. Horovitz, E. Peleg, E. E. Ronat, A. Shapira, G. Vishinsky, G. Yekutieli, J. Ballam, G. B. Chadwick, Z. G.T. Guiragossián, A. Levy, M. Menke, P. Seyboth, G. Wolf

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

We observe production of the A2 meson in the reaction γp→nπ+π+π- at 4.3 and 5.25 GeV. The data are consistent with a one-pion-exchange production mechanism and we give an estimate of Γ(A2→γπ)0.5 MeV. A similar value for Γ(A2→γπ) is also obtained using a vector dominance model.

Original languageEnglish
Pages (from-to)1322-1324
Number of pages3
JournalPhysical Review Letters
Volume23
Issue number22
DOIs
StatePublished - 1 Dec 1969
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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