Search for the Δ++ component in the 12C ground state using the 12C(γ, π+ p) reaction

V. M. Bystritsky, A. I. Fix, I. V. Glavanakov, P. Grabmayr, Yu F. Krechetov, O. K. Saigushkin, E. N. Schuvalov, A. N. Tabachenko

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The differential cross section for the 12C(γ,π+ p) reaction has been measured in the Δ(1232) resonance region at high recoil momenta of the residual nuclear system. The data are analyzed under the assumption that the formation of the π+ p pairs may be interpreted as a γΔ++ → π+ p process which takes place on a Δ++ preexisting in the target nucleus. Estimates of the Δ++ momentum distribution ρΔ ++ (p̄) = 0.17 fm3 for a mean momentum p̄ = 300 ± 49 MeV/c as well as the number of Δ isobars per nucleon NΔ = 0.017 were obtained for 12C.

Original languageEnglish
Pages (from-to)55-72
Number of pages18
JournalNuclear Physics A
Volume705
Issue number1-2
DOIs
Publication statusPublished - 1 Jul 2002

Keywords

  • σ(E,θ)
  • C deduced Δ resonance component
  • E=420,500 MeV bremsstrahlung; measured Ep
  • NUCLEAR REACTIONSC(γ, pπ)
  • pπ-coin

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Search for the Δ<sup>++</sup> component in the <sup>12</sup>C ground state using the <sup>12</sup>C(γ, π<sup>+</sup> p) reaction'. Together they form a unique fingerprint.

  • Cite this

    Bystritsky, V. M., Fix, A. I., Glavanakov, I. V., Grabmayr, P., Krechetov, Y. F., Saigushkin, O. K., Schuvalov, E. N., & Tabachenko, A. N. (2002). Search for the Δ++ component in the 12C ground state using the 12C(γ, π+ p) reaction. Nuclear Physics A, 705(1-2), 55-72. https://doi.org/10.1016/S0375-9474(02)00625-5