Phys.Rev. C 107, 054303 (2023)

K.Yadav, A.Y.Deo, Madhu, D.Sahoo, P.C.Srivastava, S.Suman, S.K.Tandel, A.Sharma, I.Ahmed, K.Katre, K.Rojeeta Devi, S.Dutt, S.Kumar, Yashraj, S.Muralithar, R.P.Singh

High-spin spectroscopy in ²⁰⁷At: Evidence of a 29/2⁺ isomeric state

NUCLEAR REACTIONS ¹⁹⁸Pt(¹⁴N, 5n)²⁰⁷At, E=80-87 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using INGA array of 13 Compton-suppressed HPGe detectors at the 15-UD tandem accelerator of the IUAC-New Delhi facility. Deduced high-spin levels, J, π, bands, multipolarities, new high-spin isomer, and configurations. Comparison with large-scale shell model calculations using KHM3Y effective interaction. Systematics of energies low-lying states in ^{116,118,120,122,126}At and ^{116,118,120,122,126}Po, and B(E3) in At isotopes. Systematics of energies of 13/2+ states in ^{199,201,203,205,207}At.

doi: 10.1103/PhysRevC.107.054303