The axial polarisability of nucleons and nuclei
- 1 September 1981
- journal article
- Published by IOP Publishing in Journal of Physics G: Nuclear Physics
- Vol. 7 (9) , 1197-1202
- https://doi.org/10.1088/0305-4616/7/9/011
Abstract
The part of the static nuclear axial polarisability arising from the nucleonic excitations is derived from the low-energy expansion of the pi N amplitude. It is shown that the contribution of the Delta intermediate state, though dominant, does not saturate the nucleonic response. A similar effect, though more pronounced, is known to occur for the magnetic susceptibility.Keywords
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