Elsevier

Annals of Physics

Volume 139, Issue 2, 1 April 1982, Pages 314-342
Annals of Physics

Spin and isospin effects in elastic P-4He scattering near 1 GeV

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Abstract

The coupled-channel method for multiple scattering is employed to describe the p-4He elastic-scattering data for a proton laboratory energy of 1.03 GeV. Particular attention is paid to the double spin-flip, double isospin-flip, double spin-isospin flip and to the effects of isobar excitation of the incident proton. It is found that the presently available data is consistent with either the excitation and deexcitation of the proton to an isobar by the 4He nucleus or the presence of relatively large double spin-flip nucleon-nucleon amplitudes. The physical difference between these two hypotheses is discussed.

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Cited by (2)

This work is supported in part through funds provided by the U.S. Department of Energy (DOE) under contract DE-AC02-76ER03069.

Present address: Physics Division, Argonne National Laboratory, Argonne, Ill, 60439.

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