Photoproduction of π0 η on protons and the ΔΔ(1700)D33 -resonance / V. L. Kashevarov [et al.]
Уровень набора: The European Physical Journal A - Hadrons and Nuclei = 1998-Язык: английский.Страна: .Резюме или реферат: Total and differential cross-sections for the reaction \ensuremathγp→π0ηp\ensuremathγp→π0ηp have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in Mainz. In the energy range \ensuremathEγ=0.95--1.4\ensuremathEγ=0.95--1.4 GeV the reaction is dominated by the excitation and sequential decay of the \ensuremathΔ(1700)D33\ensuremathΔ(1700)D33 -resonance. Angular distributions measured with high statistics allow us to determine the ratio of hadronic decay widths \ensuremathΓηΔ/ΓπS11\ensuremathΓηΔ/ΓπS11 and the ratio of the helicity amplitudes \ensuremathA3/2/A1/2\ensuremathA3/2/A1/2 for this resonance..Примечания о наличии в документе библиографии/указателя: [References: p. 148-149 (18 tit.)].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ Ресурсы он-лайн:Щелкните здесь для доступа в онлайнTitle screen
[References: p. 148-149 (18 tit.)]
Total and differential cross-sections for the reaction \ensuremathγp→π0ηp\ensuremathγp→π0ηp have been measured with the Crystal Ball/TAPS detector using the tagged photon facility at the MAMI C accelerator in Mainz. In the energy range \ensuremathEγ=0.95--1.4\ensuremathEγ=0.95--1.4 GeV the reaction is dominated by the excitation and sequential decay of the \ensuremathΔ(1700)D33\ensuremathΔ(1700)D33 -resonance. Angular distributions measured with high statistics allow us to determine the ratio of hadronic decay widths \ensuremathΓηΔ/ΓπS11\ensuremathΓηΔ/ΓπS11 and the ratio of the helicity amplitudes \ensuremathA3/2/A1/2\ensuremathA3/2/A1/2 for this resonance.
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