The Production Asymmetry in γ+n⇾π^-+p Process with Polarized Photons

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概要

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• The production asymmetry in the reaction γ+n⇾π^-+p is measured at 90° in the center-of-mass system and at five photon energies from 357 to 555 MeV. Linearly polarized photons are obtained by means of the coherent breamsstrahlung process from a silicon single crystal. Negative pions and recoiling protons from a liquid-deuterium target are detected simultaneously so that events originated from neutrons almost at rest in the deuterons are selected. The asymmetry data are compared with the dispersion-relation calculation of Berends, Donnachie, and Weaver, and with that of Schmidt et al. It is shown that the contribution from the Roper P_<11>(1470) resonance is small in the pion photoproduction process.

• 社団法人日本物理学会の論文
• 1970-07-05

著者

• SUZUKI Toshio

  Department of Animal Science, Faculty of Agriculture, Utsunomiya University

• Yoshida Hajime

  Department Of Physics Tokyo Metropolitan University

• KIMURA YOSHITAKA

  Department of Obstetrics and Gynecology, Tohoku University School of Medicine

• Kondo Kunitaka

  Institute For Nuclear Study University Of Tokyo:(prsent Address) Department Of Physics Tsukuba Unive

• Kondo Kunitaka

  Department Of Physics Faculty Of Science University Of Tokyo

• Kobayashi Masaaki

  Institute For Nuclear Study University Of Tokyo:(prsent Address) Bookhaven National Laboratory Upton

• Takikawa Koji

  Department Of Physics University Of Tokyo

• Kimura Yoshitaka

  National Laboratory For High Energy Physics

• Kimura Yoshitaka

  Department Of Applied Physics University Of Tokyo

• NISHIKAWA Tetsuji

  Department of Physics, University of Tokyo

• Suzuki Toshio

  Department Of Physics University Of Tokyo

• Suzuki Toshio

  Department Of Agronomy Faculty Of Agriculture Tohoku University

• Yoshida Hajime

  Department Of Physics Faculty Of Science The University Of Tokyo:(present Address) Laboratoire De L&

• Kimura Yoshitaka

  Department Of Applied And Environmental Chemistry Kitami Institute Of Technology

• Nishikawa Tetsuji

  Department Of Physics Faculty Of Science University Of Tokyo:(prsent Address) National Laboratory Fo

• Nishikawa Tetsuji

  Department Of Physics Faculty Of Science University Of Tokyo

• Nishikawa Tetsuji

  Department Of Physics Faculty Of Sciencc University Of Tokyo

• Yoshida Hajime

  Department Of Nuclear Engineering Hokkaido University

• Kobayashi Masaaki

  Institute For Nuclear Study University Of Tokyo

• Yoshida Hajime

  Department Of Applied Chemistry Faculty Of Engineering Saitama Institute Of Technology

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