PHOTOPRODUCTION OF PI0 ON PROTONS BY POLARIZED GAMMA RAYS

被引：24

作者：

BARBIELL.G

BOLOGNA, G

CAPON, G

DEZORZI, G

FABBRI, FL

MURTAS, GP

DIAMBRIN.G

SETTE, G

DEWIRE, J

机构：

[1] Laboratori Nazionali del CNEN, Frascati, Roma

[2] Istituto di Fisica, Università di Genova, Istituto Nazionale di Fisica Nucleare, Genova

[3] Cornell University, Ithaca

来源：

PHYSICAL REVIEW | 1969年 / 184卷 / 05期

关键词：

D O I：

10.1103/PhysRev.184.1402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The asymmetry (k,θ*)=(dσ-dσ)(dσ+σ) of the polarized cross sections for π0 photoproduction has been measured at θ*=90°for energies k of the incident photon in the range 230-380 MeV. The experiment has been performed with the polarized γ-ray beam of the Frascati 1-GeV electron synchrotron. The experimental results are compared with the present theoretical predictions in order to investigate the importance of ω exchange in the t channel and the contribution of the E1+(3) multipole at the 33 resonance. The theory with ω exchange is in the best agreement with the experiment. © 1969 The American Physical Society.

引用

页码：1402 / &

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