Speaker
Dr
Sergey Sukhoruchkin
(Petersburg Nuclear Physics Institute)
Description
The pion play an important in recent theoretical models including the
Effective Field Theory and the Constituent Quark Model with Goldstoune
Exchange Interaction. Nucleon interactions within nuclei are considered as
a result of one- and many-pion exchange.
The role of tensor forces connected with the pion exchange in the description
of nuclear binding energies and nuclear excitations was discussed recently by
T.Otsuka, I.Tanihata, A.Arima and others. We performed the analysis of values
of excitation in many nuclei which are situated at different parts of nuclear
shells where tensor forces are important. We find out a systematic character
of excitations and spacing in such nuclei by using recent compilation of
nuclear excitations from Landoldt Bernstein Library vol I/25 Springer. Two
the most frequently appearing stable energy excitation and intervals are
found to be rationally connected with the pion and nucleon mass differences.
This conclusion will be considered together with several the strongest
correlations in the near-magic nuclei and in nuclei with the collective
motions of nucleons.
Primary author
Dr
Sergey Sukhoruchkin
(Petersburg Nuclear Physics Institute)