The European Physical Journal A

ISSN: 1434-6001 (printed version)
ISSN: 1434-601X (electronic version)

Table of Contents

Abstract Volume 3 Issue 1 (1998) pp 9-15

nuclear structure: Structure of low and high spin states in ¹¹²Sb in interacting boson fermion fermion model

A.K. Singh

Department of Physics, University College of Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Calcutta 700 009, India

Received: 23 December 1997 / Revised version: 30 April 1998

Abstract: In this paper, properties of the low and the high spin states in ¹¹²Sb have been studied in the framework of Interacting Boson Fermion Fermion Model. A surface delta plus spin-spin type of interaction has been taken as the residual interaction between the odd neutron and the odd proton. Energy values, magnetic moments of the ground state and the isomeric 8^- state, E2/M1 mixing ratios of some of the low-lying transitions and log ft values for the Gamow-Teller transitions in ¹¹²Sb -> ¹¹²Sn and ¹¹¹Sb -> ¹¹¹Sn decay have been calculated and are compared with the experimental results. The band based on the configuration <pi> g^-1_9/2<pi> g²_7/2 \otimes <nu> h_11/2 is obtained in this calculation by coupling the proton in the g_9/2 and the neutron in the h_11/2 orbital to the deformed band of ¹¹⁰Sn. The B(M1)/B(E2) ratios and branching ratios for the transitions in this band have also been calculated and compared with the experimental results.

PACS: 21.60.Fw Models based on group theory - 21.10.Ky Electromagnetic moments - 21.10.Tg Lifetimes - 23.40.Hc Relation with nuclear matrix elements and nuclear structure - 27.60.+j 90 \leq A \leq 149

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Online publication: September 23, 1998
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