https://doi.org/10.1140/epja/i2004-10147-0
Original Article
Levels in doubly odd 138Pr
1
Department of Physics, University College of Science, University of Calcutta, 700009, Kolkata, India
2
Department of Physics, Surendranath Evening College, 24/2 M.G. Road, 700009, Kolkata, India
3
Nuclear Science Centre, 110067, New Delhi, India
4
Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, 700064, Kolkata, India
5
Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, 700064, Kolkata, India
6
Dipartimento di Fisica and INFN, Sezione di Perugia, Università di Camerino, Via Madonna delle Carceri 9, I-62032 Camerino (PG), Italy
7
Department of Physics, Indian Institute of Technology, 721302, Kharagpur, India
* e-mail: gautam@cucc.ernet.in
Received:
6
May
2004
Accepted:
12
March
2005
Published online:
12
April
2005
The band structures of the doubly odd 138Pr nucleus have been investigated using the 128Te(14N, 4n)138Pr reaction at a beam energy of 55-65 MeV. Altogether six distinct structures have been established, of which the lower part of the yrast band and two side bands were known from earlier works. The observed level properties of the members of the yrast band have been compared with theoretical calculations performed within the Particle Rotor Model (PRM) with axially symmetric core. The experimental branching ratios and B(M1)/B(E2) values when compared with the theoretical results of the PRM, suggest an oblate core.
PACS: 21.10.Re Collective levels – / 23.20.-g Electromagnetic transitions – / 21.60.Ev Collective models – / 27.60.+j 90≤A≤149 –
© Società Italiana di Fisica and Springer-Verlag, 2005
