Elastic and charge exchange scattering of pions on3He in the (3,3)-resonance region

K. P. Lohs*, V. B. Mandelzweig

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The elastic scattering of pions from3He and the single charge exchange reaction3He(π-, π0)3H are calculated in the energy domain of the (3,3)-resonance within the framework of Glauber's theory, including spin and isospin degrees of freedom in all orders. It is pointed out that, from the first minimum on, the differential cross section strongly depends on the parametrization of the πN amplitude, especially on its continuation into the unphysical region of momentum transfer. Single and double spin flip contributions prove to be very important in the charge exchange reaction. Within a modified version of Glauber's formalism, directly using πN phase shifts rather than amplitudes, the3He charge exchange scattering is reexamined. Whereas the shape of the angle-integrated cross section as a function of pion energy is confirmed, the magnitude is still uncertain within a factor of 2.

Original languageEnglish
Pages (from-to)51-61
Number of pages11
JournalZeitschrift für Physik A Atoms and Nuclei
Volume283
Issue number1
DOIs
StatePublished - Mar 1977
Externally publishedYes

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