INPAC-Seminar 119
Title: Aligned neutron-proton pairs in N = Z nuclei
Speaker: Prof. Piet V. Isacker
Time and place: 12:30-13:00, March 27 (Wednesday), 2013, Lecture Hall/INPAC
Abstract:
The study of nuclei with equal numbers of neutrons and protons (N = Z) is one of the declared objectives of radioactive-ion-beam facilities. Currently, N = Z experiments are reaching 100Sn, involving studies of nuclei where nucleons are dominantly confined to the 1g9/2 orbit.
In this talk it is shown that the aligned neutron-proton pair with angular momentum J = 9 and isospin T = 0 plays a central role in the low-energy spectroscopy of the N ~ Z nuclei in this mass region. This observation is made by analyzing shell-model wave functions in terms of a variety of two-nucleon pairs with different angular momentum J and isospin T.
On the basis of these results one concludes that a simple model can be formulated in terms of isoscalar bosons with J = 9. Due to its simplicity, such a model could be of use to elucidate the main structural features of N ~ Z nuclei in this mass region. Examples of simple predictions resulting from this approach are discussed.
Shanghai Jiao Tong University
No.800 Dong Chuan Road, No.5 Physics building
Minhang District, Shanghai,
200240
沪交ICP备05010
© School of Physics and Astronomy Shanghai Jiao Tong University All rights reserved
WeChat Official Account
