Coupling of Angular Momenta Isospin Nucleon-Nucleon Interaction
Coupling of Angular Momenta Isospin Nucleon-Nucleon Interaction
Coupling of Angular Momenta Isospin Nucleon-Nucleon Interaction
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<strong>Nucleon</strong>-nucleon nucleon interaction<br />
General form <strong>of</strong> the potential:<br />
(5)<br />
or within the formulation using exchange operators (parity, spin, isospin):<br />
The indices stand for Wigner, Majorana, Bartlett, and Heisenberg.<br />
The last term can be also written with , but due to the conditions<br />
can be expressed as<br />
Another important ingredient <strong>of</strong> a nucleon-nucleon interaction that was<br />
found to be necessary to explain the properties <strong>of</strong> the deuteron is the tensor<br />
force. It contains the term<br />
, but in such a combination that the<br />
average over the angles vanishes. The full expression is<br />
(6)
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