1307.2056 (H. Pai et al.)

Band structures and intruder $π$$i_{13/2}$ state in $^{197}$Tl    [PDF]

H. Pai, G. Mukherjee, S. Bhattacharya, C. Bhattacharya, S. Bhattacharyya, T. Bhattacharjee, S. Chanda, S. Rajbanshi, A. Goswami, M. R. Gohil, S. Kundu, T. K. Ghosh, K. Banerjee, T. K. Rana, R. Pandey, G. K. Prajapati, S. R. Banerjee, S. Mukhopadhyay, D. Pandit, S. Pal, J. K. Meena, P. Mukhopadhyay, A. Chawdhury

The excited states in the odd-A $^{197}$Tl nucleus have been studied by populating them using the $^{197}$Au($\alpha$, 4n)$^{197}$Tl reactions at the beam energy of 48 MeV. $\gamma-\gamma$ coincidence data have been taken using a combination of clover, LEPS and single crystal HPGe detectors. A new band structure has been identified and the intruder $\pi i_{13/2}$ state could be established for the first time. Precise spin and parity assignment of the excited states have been done through polarization and DCO measurements. Possible configurations of the observed bands have been discussed. The total Routhian surface calculations have been performed to study the shape of $^{197}$Tl for different configurations.

View original: http://arxiv.org/abs/1307.2056