Delta excitations in nuclei

https://doi.org/10.1016/0375-9474(88)90599-4Get rights and content

Abstract

A new approach is proposed for the investigation of delta (Δ) excitations in nuclei induced by intermediate energy charge exchange reactions. The approach is based on the isobar-hole model which treats the dynamics of the Δ in the nucleus explicitly. The distortion effects of the projectile wave functions are included properly. The inclusive Δ-cross section is calculated. It is found that in a distorted wave calculation the peak position of the Δ-cross section is shifted towards lower excitation energies compared to a plane wave calculation. The shift amounts to 25 MeV in the 12C(p,n)-reaction at 800 MeV incident energy and it amounts to 40 MeV in the 12C(3He,t)-reactions at E = 2 GeV. The origin of this shift is explained in detail.

References (18)

  • C.G. Cassapakis

    Phys. Lett.

    (1976)
  • D. Contardo

    Phys. Lett.

    (1986)
  • C. Chanfray et al.

    Phys. Lett.

    (1984)
  • Y. Horikawa et al.

    Nucl. Phys.

    (1980)
  • J.M. Cavedon

    Phys. Rev. Lett.

    (1982)
  • T. Udagawa et al.

    Phys. Rev. C

    (1981)
    T. Udagawa et al.

    Phys. Rev. C

    (1981)
    B.T. Kim et al.

    Phys. Rev.

    (1986)
  • W.G. Love, private...
  • W.G. Love et al.

    Phys. Rev.

    (1981)
  • G. Glass

    Phys. Rev.

    (1977)
    B.E. Bonner

    Phys. Rev.

    (1978)
There are more references available in the full text version of this article.

Cited by (1)

  • Energy levels of light nuclei A = 11-12

    1990, Nuclear Physics, Section A

permanent address: University of Texas, Austin

View full text