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Phys. Rev. C 78, 021306(R) (2008) [5 pages]

Abrupt change of rotation axis in 109Ag

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P. Datta1, S. Roy2, S. Pal3, S. Chattopadhyay3, S. Bhattacharya3, A. Goswami3, M. Saha Sarkar3, J. A. Sheikh4, Y. Sun5, P. V. Madhusudhana Rao6, R. K. Bhowmik7, R. Kumar7, N. Madhavan7, S. Muralithar7, R. P. Singh7, H. C. Jain8, P. K. Joshi8, and Amita9
1Ananda Mohan College, 102/1 Raja Rammohan Roy Sarani, Kolkata 700 009, India
2S. N. Bose National Centre for Basic Sciences, JD Block, Kolkata 700 098, India
3Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India
4Department of Physics, Kashmir University, Srinagar 190006, India
5Department of Physics, Shanghai Jiao Tong University, Shanghai 200 240, People's Republic of China and Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
6Labs for Nuclear Research, Department of Nuclear Physics, Andhra University, Visakhapatnam 530 003, India
7Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110 067, India
8Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India
9Department of Physics, RBS College, Agra 282 002, India

Received 28 January 2008; revised 19 May 2008; published 25 August 2008

The electromagnetic transition rates for all the high spin levels of the yrast sequence of 109Ag have been measured. The observed behavior of the magnetic dipole transition rates as a function of angular momentum establishes that there is a sudden change in rotation axis associated with rotational alignment of two neutrons. The projected shell model calculations give a consistent picture of the observed phenomena in 109Ag.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.021306
DOI:
10.1103/PhysRevC.78.021306
PACS:
27.60.+j, 21.10.Hw, 21.10.Tg, 21.60.Ev
 
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