Excited states in Pd99

S. Sihotra, Z. Naik, S. Kumar, K. Singh, J. Goswamy, N. Singh, R. Kumar, R. P. Singh, S. Muralithar, R. K. Bhowmik, R. Palit, and D. Mehta
Phys. Rev. C 83, 024313 – Published 22 February 2011

Abstract

Excited states in the Pd99 nucleus populated in the As75(Si28, p3n) fusion-evaporation reaction at Elab=120 MeV have been investigated through in-beam γ-ray spectroscopic techniques using an array of Compton-suppressed clover detectors. The level scheme is established up to excitation energy ~11.5 MeV and spin ~25 with the addition of about 60 new transitions. The level structures observed in Pd99 have been interpreted in the framework of a microscopic theory based on the deformed Hartree-Fock and angular momentum projection techniques. Band structures at lower spins are based on the low-Ω νg7/2 and νd5/2 orbitals, and those at higher spins are reproduced for the π(g9/2)5π(g7/2)ν(g7/2)2ν(h11/2)2ν(g9/2)1 and π(g9/2)6ν(g9/2)10ν(g7/2)2ν(h11/2) configurations. The octupole correlations in Pd99 have been inferred from new interband E1 transitions linking the ΔI=1 states of the bands based on the νh11/2 and νd5/2 orbitals (Δl=3, Δj=3, and Δπ=1) with the deduced B(E1) values ~106 W.u.

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  • Received 11 October 2010

DOI:https://doi.org/10.1103/PhysRevC.83.024313

©2011 American Physical Society

Authors & Affiliations

S. Sihotra1, Z. Naik2, S. Kumar1, K. Singh1, J. Goswamy1, N. Singh1, R. Kumar3, R. P. Singh3, S. Muralithar3, R. K. Bhowmik3, R. Palit4, and D. Mehta1,*

  • 1Department of Physics, Panjab University, Chandigarh 160014, India
  • 2Department of Physics, Sambalpur University, Sambalpur 143005, India
  • 3Inter-University Accelerator Centre, New Delhi 110067, India
  • 4Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400005, India

  • *dmehta@pu.ac.in

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Vol. 83, Iss. 2 — February 2011

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