Measurement of the Cross Section Asymmetry of the Reaction gp-->pi0p in the Resonance Energy Region Eg = 0.5 - 1.1 GeV

A. H. Vartapetian; A. M. Sirunian; Armenia); A. V. Hairapetian; A. Yu. Buniatian; DC); F. V. Adamian; G. S. Frangulian; H. H. Hakopian; H. H. Vartapetian

arxiv: nucl-ex/0011006 · v1 · submitted 2000-11-08 · ⚛️ nucl-ex

Measurement of the Cross Section Asymmetry of the Reaction gp-->pi0p in the Resonance Energy Region Eg = 0.5 - 1.1 GeV

F. V. Adamian , A. Yu. Buniatian , G. S. Frangulian , P. I. Galumian , V. H. Grabski , A. V. Hairapetian , H. H. Hakopian , V. K. Hoktanian

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J. V. Manukian A. M. Sirunian A. H. Vartapetian H. H. Vartapetian V. G. Volchinsky (Yerevan Physics Institute Armenia) R. A. Arndt I. I. Strakovsky R. L. Workman (GW Washington DC)

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keywords energyanalysesasymmetrycrossdataresonancesectionsigma

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The cross section asymmetry Sigma has been measured for the photoproduction of pi0-mesons off protons, using polarized photons in the energy range Eg = 0.5 - 1.1 GeV. The CM angular coverage is Theta = 85 - 125 deg with energy and angle steps of 25 MeV and 5 deg, respectively. The obtained Sigma data, which cover the second and third resonance regions, are compared with existing experimental data and recent phenomenological analyses. The influence of these measurements on such analyses is also considered.

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Measurement of the Cross Section Asymmetry of the Reaction gp-->pi0p in the Resonance Energy Region Eg = 0.5 - 1.1 GeV

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