Consequences of omitting spin-orbit partner configurations on B(E2)'s and quadrupole moments in nuclei

TL;DR

This paper investigates how omitting spin-orbit partner configurations affects calculations of B(E2) values and quadrupole moments in nuclei, using lighter nuclei in the fp region to gain insights applicable to heavier regions.

Contribution

It compares calculations including and excluding the f_{5/2} orbital to assess the impact of missing spin-orbit partners on nuclear property predictions.

Findings

Omission of the f_{5/2} orbital influences B(E2) and quadrupole moment calculations.

Comparison reveals the significance of spin-orbit partners in nuclear models.

Results provide guidance for modeling nuclei where full configuration inclusion is computationally challenging.

Abstract

Calculations of B(E2)'s and quadruplole moments in the g_{9/2 region below ^{100} Sn are hampered by the fact that the inclusion of the g_{7/2}configuration leads to model spaces that are too large to handle. We therefore examine lighter nuclei if the fp region where one can easily include all the orbitals, f,{}_{7/2}, p_{3/2}, p_{1/2}and f_{5/2} . We perform such calculations but then take a step back and exclude the f_{5/2} orbital. By comparing the 2 calculations we can hope to get insight into the importance of the missing spin-orbit partner in other regions.