EPJ Web of Conferences
Volume 107, 2016International Conference on Nuclear Structure and Related Topics (NSRT15)
|Number of page(s)||6|
|Section||Nuclear Spectroscopy – Experiment and Theory|
|Published online||19 January 2016|
Lifetime measurements in mass regions A=100 and A=130 as a test for chirality in nuclear systems
1 Institute for Nuclear Research and Nuclear Energy, BAS, Sofia, Bulgaria
2 INFN, Laboratori Nazionali di Legnaro, Legnaro, Italy
3 Department of Physics, Faculty of Science, Zagreb University, Zagreb, Croatia
4 Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA
5 Institute for Radiation Physics, Research center Rossendorf, D-01314 Dresden, Germany
6 Institut für Kernphysik der Universität zu Köln, Köln, Germany
7 Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, People’s Republic of China
8 Institut de Recherches Subatomiques, Strasbourg, France
9 Inter-University Accelerator Center, New Delhi, India
10 Nuclear Physics Department, Andhra University, Visakhapatnam, India
11 Department of Physics, Punjab University, Chandigarh, India
12 Department of Physics and Astrophysics, Delhi University, New Delhi, India
13 Department of Physics, Banaras Hindu University, Varanasi, India
a e-mail: firstname.lastname@example.org
Published online: 19 January 2016
Two odd-odd nuclei from the A ~ 100 and A ~ 130 regions, namely 102Rh and 134Pr have been studied in search for chiral doublet bands via 94Zr(11B,3n)102Rh and 119Sn(19F,4n)134Pr reactions, respectively. Two nearly degenerate bands built on the πg9/2 ⊗ vh11/2 configuration have been identified in 102Rh and on the πg11/2 ⊗ vh11/2 configuration for 134Pr. Lifetimes of excited nuclear states were measured using Dopplershift attenuation method and recoil distance Doppler-shift method. The deexciting gamma rays were registered by the Indian National Gamma Array for 102Rh and using the EUROBALL IV detector array with an inner Bismuth Germanate (BGO) ball for 134Pr, respectively. Polarization and angular correlation measurements have been performed to establish the spin and parity assignments for these bands. The derived reduced transition probabilities are compared to the predicitons of the two quasiparticles + triaxial rotor and interacting boson fermion-fermion models.
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