Elsevier

Nuclear Physics A

Volume 435, Issues 3–4, 18 March 1985, Pages 738-764
Nuclear Physics A

Effects of a refined Coulomb treatment on π±-deuteron elastic scattering observables

https://doi.org/10.1016/0375-9474(85)90186-1Get rights and content

Abstract

The sensitivity of π±d differential cross section, vector analyzing power, tensor polarization and charge asymmetry parameters to different Coulomb contributions to the total scattering amplitudes is investigated at eleven energies in the energy range Tπlab = 47 to 360 MeV. For that purpose we derive a simple on-shell approximation for the Coulomb-corrected hadronic T-matrix, which is superior to widely used semiclassical descriptions of the Coulomb corrections. In addition we use relativistic Coulomb amplitudes and phase shifts, which consider also the pion and deuteron charge extension. It is shown that the vector analyzing power it11 is more sensitive to different Coulomb prescriptions than the differential cross section and tensor polarization t20. We have also succeeded in describing the charge asymmetry parameter of differential cross section Aπ satisfactorily and find that the charge asymmetry parameter of vector analyzing power Ait11 is even more sensitive than Aπ to different Coulomb treatments. For a search of charge-symmetry-breaking effects in terms of the πd charge asymmetry parameter, the necessity of including our careful treatment of Coulomb contributions to the total scattering amplitude is emphasized.

References (58)

  • B. Blankleider et al.

    Phys. Rev.

    (1981)
    T. Mizutani

    Phys. Lett.

    (1981)
    A.S. Rinat et al.

    Nucl. Phys.

    (1983)
  • K. Kubodera

    J. of Phys.

    (1980)
  • J. Arvieux

    Phys. Lett.

    (1981)
  • T.G. Masterson

    Phys. Rev.

    (1982)
  • R. Rockmore et al.

    Phys. Rev.

    (1983)
  • A.S. Rinat et al.

    Nucl. Phys.

    (1983)
  • K.K. Seth
  • J. Fröhlich

    Phys. Lett.

    (1980)
  • J.F. Germond et al.

    Ann. of Phys.

    (1979)
  • C. Chandler

    Nucl. Phys.

    (1981)
  • M.I. Haftel et al.

    Phys. Rev.

    (1981)
  • A.W. Thomas

    Nucl. Phys.

    (1976)
  • A.S. Rinat et al.

    Nucl. Phys.

    (1977)
  • T. Mizutani et al.

    Ann. of Phys.

    (1977)
  • Y. Avishai et al.

    Nucl. Phys.

    (1979)
    Y. Avishai et al.

    Nucl. Phys.

    (1980)
  • B. Blankleider and I.R. Afnan, C24 (1981)...
  • K. Schwarz

    Phys. Lett.

    (1979)
  • G. Fäldt et al.

    Phys. Lett.

    (1973)
    F. Myhrer et al.

    Z. Phys.

    (1976)
    R. Jäckle

    Phys. Lett.

    (1978)
  • P.U. Sauer
  • J. Fröhlich

    Phys. Lett.

    (1983)
  • D. Axen

    Nucl. Phys.

    (1976)
  • J. Bolger

    Phys. Rev. Lett.

    (1981)
    J. Bolger

    Phys. Rev. Lett.

    (1982)
  • R.H. Cole

    Phys. Rev.

    (1978)
  • M.R. Sogard

    Phys. Rev.

    (1974)
  • E. Borie

    Z. Natur.

    (1978)
  • B. Saghai

    Nucl. Phys.

    (1983)
  • J. Fröhlich

    Z. Phys.

    (1982)
  • J. Fröhlich

    Z. Phys.

    (1981)
  • T. Mizutani

    Phys. Rev.

    (1981)
    I.R. Afnan et al.

    Phys. Lett.

    (1980)
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