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Pion Spectra to Individual Final States in the Reactions 12C(γ,π±)12B, 12N

  • N. Paras
  • A. M. Bernstein
  • K. I. Blomqvist
  • G. Franklin
  • J. LeRose
  • K. Min
  • M. Pauli
  • D. Rowley
  • B. Schoch
  • P. Stoler
  • E. J. Winhold
  • P. F. Yergin

Abstract

The cross sections for the reactions 12C(γ,π+)12B and 12C(γ,π)12N to various states of the final nucleus have been measured at a pion energy around 29 MeV for electron energies from 187 to 193 MeV, and at a pion energy around 17 MeV with electron energies from 174 to 181 MeV, and at a pion angle 90° with respect to the incident photon beam. The observed states in 12B and 12N are the analogues of T = 1 states in 12C which are excited by inelastic electron scattering1,2. Furthermore, the (γ,π) one-body operator tends to strongly excite spin-flip components of the transitions to these states.

Keywords

Inelastic Electron Pion Photoproduction Pion Energy Final Nucleus Pion Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    H. Überall, B. A. Lamars, C. W. Lucas and A. Nagl. Phys. Lett. 44B, 4 (1973) 324.CrossRefGoogle Scholar
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    Yamaguchi, T. Terasawa, K. Nakahara and Y. Torizuka, Phys. Rev. C 3, 5 (1971) 1750.ADSGoogle Scholar
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    R. H. Dalitz and D. R. Yennie, Phys. Rev. 105 (1957) 1598.Google Scholar
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    K. Shoda, H. Ohashi, and K. Nakahara, Phys. Rev. Letts., 39, 1131 (1977). Also, K. Shoda, these Proceedings.ADSCrossRefGoogle Scholar
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    A. Nagl and H. Überall, private communication.Google Scholar

Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • N. Paras
    • 1
  • A. M. Bernstein
    • 1
  • K. I. Blomqvist
    • 1
  • G. Franklin
    • 1
  • J. LeRose
    • 1
  • K. Min
    • 1
  • M. Pauli
    • 1
  • D. Rowley
    • 1
  • B. Schoch
    • 1
  • P. Stoler
    • 1
  • E. J. Winhold
    • 1
  • P. F. Yergin
    • 1
  1. 1.MIT-RPI CollaborationUSA

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