Effect of pion external distortion on low-energy pion double charge exchange

M. Kh Khankhasayev, Haiduke Sarafian, Mikkel B. Johnson, Zh B. Kurmanov

Research output: Contribution to journalArticle

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Abstract

We simplify a treatment of pion distortions using a separable expansion of optical potential in momentum space. We use this method to gain insight into the role of distortions in isoelastic pion charge-exchange scattering within the framework of the isospin-invariant optical model. The method provides an analytic procedure for calculating external distortions for single- and double-charge-exchange scattering. This allows us to analyze separately the role of on- and off-shell pions in distortions for each partial wave. Results for sequential scattering at 50 MeV for the reaction C14(+, -)14 O are presented. It is shown that the external distortions give a small enhancement in forward directions and reduce the differential cross sections at large angles.

Original languageEnglish (US)
Pages (from-to)1424-1435
Number of pages12
JournalPhysical Review C
Volume50
Issue number3
DOIs
StatePublished - Jan 1 1994

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charge exchange
pions
scattering
energy
momentum
expansion
augmentation
cross sections

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Khankhasayev, M. Kh ; Sarafian, Haiduke ; Johnson, Mikkel B. ; Kurmanov, Zh B. / Effect of pion external distortion on low-energy pion double charge exchange. In: Physical Review C. 1994 ; Vol. 50, No. 3. pp. 1424-1435.
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Effect of pion external distortion on low-energy pion double charge exchange. / Khankhasayev, M. Kh; Sarafian, Haiduke; Johnson, Mikkel B.; Kurmanov, Zh B.

In: Physical Review C, Vol. 50, No. 3, 01.01.1994, p. 1424-1435.

Research output: Contribution to journalArticle

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