Two-body Mechanisms in Pion Scattering and Pion Photoproduction on the Trinucleon

  • S. S. Kamalov
  • L. Tiator
  • C. Bennhold
Conference paper
Part of the Few-Body Systems book series (FEWBODY, volume 9)


A breakdown of the Impulse Approximation is studied in pion photoproduction and pion charge exchange on 3He at high momentum transfers. The usual DWIA formalism with Faddeev wave functions which works well for small momentum transfers deviates from experimental measurements by up to two orders of magnitude for Q 2 > 6 fm−2. It is found that the explicit inclusion of two-body mechanisms, where the photon or pion is absorbed on one nucleon and the pion is emitted from another nucleon removes most of the disagreement with the data.


Differential Cross Section Impulse Approximation Pion Photoproduction Small Momentum Transfer High Momentum Transfer 
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  1. 1.
    S.S. Kamalov, L. Tiator, C. Bennhold: Few-Body Systems 10, 143 (1991)ADSCrossRefGoogle Scholar
  2. 2.
    S.S. Kamalov, L. Tiator, C. Bennhold: Phys. Rev. C47, 941 (1993)ADSGoogle Scholar
  3. 3.
    I. Blomqvist and J.M. Laget: Nucl. Phys. A280, 405 (1977)ADSGoogle Scholar
  4. 4.
    L.G. Levchuk and A.V. Shebeko: Sov. J. Nucl. Phys. 50, 607 (1989)Google Scholar
  5. 5.
    A.K. Kerman, H. McManus, R.M. Thaler: Ann. Phys. (N.Y.) 8, 551 (1955)ADSCrossRefGoogle Scholar
  6. 6.
    D. Bachelier et al.: Phys. Lett. B44, 44 (1973);ADSGoogle Scholar
  7. D. Bachelier et al.: Nucl. Phys. A251, 433 (1975)ADSGoogle Scholar
  8. 7.
    R.A. Brandenburg, Y.E. Kim, A. Tubis: Phys. Rev. C12, 1368 (1975)ADSGoogle Scholar
  9. 8.
    B.K. Jennings: Phys. Lett. B205, 187 (1988)ADSGoogle Scholar

Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • S. S. Kamalov
    • 1
  • L. Tiator
    • 2
  • C. Bennhold
    • 3
  1. 1.Laboratory of Theoretical PhysicsJINR DubnaMoscowRussia
  2. 2.Institut für KernphysikUniversität MainzMainzGermany
  3. 3.Center of Nuclear Studies, Department of PhysicsThe George Washington UniversityUSA

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