2020 Impact factor 3.043
Hadrons and Nuclei
Eur. Phys. J. A 5, 37-42

Gamow-Teller strength function in spherical nuclei

K. Junker1 - V.A. Kuz'min1,2 - T.V. Tetereva1,3

1 Paul-Scherrer-Institut, CH-5232 Villigen PSI, Switzerland
2 Joint Institute for Nuclear Research Dubna, 141980, Moscow region, Russia
3 Skobeltsyn Nuclear Physics Institute, Moscow State University, Moscow, Russia

Received: 17 June 1998 / Revised version: 9 November 1998 Communicated by F. Lenz

Abstract
The $\sigma t^{\pm}$ strength distribution as a function of the excitation energy is investigated in the framework of the Quasiparticle Random Phase Approximation. The results are compared with the available experimental data for ${}^{54}{\rm Fe}$ and with the results of recent shell model calculations. It is demonstrated that the full single-particle space has to be used in order to describe the GT strength function correctly.

PACS
21.30.Fe Forces in hadronic systems and effective interactions - 21.60.Jz Hatree-Fock and random-phase approximations - 21.60.Cs Shell model - 24.30.Cz Giant resonances - 25.40.Kv Charge-exchange reactions - 25.45.Kk Charge-exchange reactions


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