A note on the parity of i π = 5 - State in 1 2 6, 1 2 8 Xe

Abstract

Excited states in 126,128Xe were populated via 122Sn(9Be, 5nγ) and 122Sn(9Be, 3nγ) fusion-evaporation reactions, respectively, at a beam energy of 48MeV. The electromagnetic (electric or magnetic) nature and multipolarity of some inter-band γ rays are determined from linear polarization and angular correlation measurements. Re-measured/newly measured linear polarization asymmetry helps to assign the parity of 2302-keV (126Xe)/2228-keV (128Xe) Iπ = 5- state unequivocally. © 2021 World Scientific Publishing Company.