Identification of intruder πi13/2 state in 197Tl

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.s R. Banerjee; S. Mukhopadhyay; D. Pandit; S. Pal; J.K. Meena; P. Mukhopadhyay; A. Choudhury

doi:10.1051/epjconf/20146602079

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Open Access

EPJ Web of Conferences 66, 02079 (2014)
https://doi.org/10.1051/epjconf/20146602079

Identification of intruder πi_13/2 state in ¹⁹⁷Tl

H. Pai¹^a, G. Mukherjee¹^b, S. Bhattacharya¹, C. Bhattacharya¹, S. Bhattacharyya¹, T. Bhattacharjee¹, S. Chanda², S. Rajbanshi³, A. Goswami³, M. R. Gohil¹, S. Kundu¹, T. K. Ghosh¹, K. Banerjee¹, T. K. Rana¹, R. Pandey¹, G. K. Prajapati¹, S.s R. Banerjee¹, S. Mukhopadhyay¹, D. Pandit¹, S. Pal¹, J.K. Meena¹, P. Mukhopadhyay¹ and A. Choudhury¹

¹ Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 INDIA
² Physics Department, Fakir Chand College, Diamond Harbour, West Bengal, INDIA
³ Saha Institute of Nuclear Physics, Kolkata 700064, INDIA

^a e-mail: hari.vecc@gmail.com, hpai@ikp.tu-darmstadt.de
^b e-mail: gopal@vecc.gov.in

Published online: 20 March 2014

Abstract

The high-spin states in ¹⁹⁷Tl were studied by populating them using the ¹⁹⁷Au(α, 4n)¹⁹⁷ Tl reaction at 48 MeV of beam energy. γ−γ coincidence data were taken using a combination of clover, LEPS (low energy photon spectrometer) and single crystal HPGe detectors. The polarization and DCO measurements were performed for definite spin and parity assignment of the excited states. The πi_13/2 intruder state has been identified for the first time in this nucleus. The total Routhian surface calculations have been performed to study the shape and deformation of ¹⁹⁷Tl for different configurations.

© Owned by the authors, published by EDP Sciences, 2014

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