[en] High spin states in ¹⁷⁰Ta have been studied via ¹⁵⁹Tb(¹⁶O, 5nγ)¹⁷⁰Ta reaction at 105 MeV beam energy. Three rotational bands were observed among which one nondistorted band and an unfavored Δ1 =3D 2 E2 transition sequence are newly found by this work. the possible quasiparticle configurations of these bands are discussed

[en] Two low-lying isomeric states in ¹⁶⁹Ta have been identified via ¹⁵⁹Tb(¹⁶O, 6nγ)¹⁶⁹Ta reaction. Their half-lives are measured to be 28 +- 5 ns for the 9/2^- level and 17 +- 4 ns for the 5/2^- level by using the delayed γ-γ coincidence method. These two isomeric states are considered to be the band-heads with 9/2^-[514] and 1/2^-[541] configurations, respectively. Possible neutron quasiparticle configuration for the ground state of ¹⁶⁹W is discussed

[en] High-spin states in ¹⁶²Lu have been produced and studied via ¹⁴⁷Sm(¹⁹F, 4nγ) ¹⁶²Lu reaction. In-beam γ-rays were measured by using 1 planar detector and 7 high purity Ge detectors with BGO anti-Compton shield. the level scheme of the yrast band in ¹⁶²Lu was established for the first time and the signature inversion in energy was discovered. The yrast bands of doubly odd nuclei around A = 160 mass region have been re-investigated and the systematics of signature inversion was discussed briefly

[en] High spin states in ¹⁷⁰Ta have been studied via ¹⁵⁹Tb(¹⁶O, 5 nγ)¹⁷⁰Ta reaction at 105 MeV beam energy. Three rotational bands have been observed among which one coupled band and an unfavored ΔI = 2 transition sequence of the semidecoupled band are identified in this work. the effects of the π1/2^-[541] proton intruder orbital are qualitatively discussed

[en] High spin states in ¹⁷⁰Ta have been studied via ¹⁵⁹Tb(¹⁶O, 5nγ)¹⁷'0Ta reaction at 105 MeV. Three rotational bands are observed, among which one coupled band and an unfavored ΔI = 2 E2 sequence are newly found in this work. The possible quasi-particle configurations of these bands are discussed

[en] High spin states of the odd-odd ¹⁶² Lu nucleus have been studied via ¹⁴⁷Sm(¹⁹F, 4nγ) reaction at 95 MeV beam energy. Level scheme for yrast band based on π[h_11/2]ν[i_13/2] quasiparticle configuration was established up to I^π = (23^-) for the first time. This band shows the signature inversion in energy before backbending generally appeared in this mass region. It is stressed that the signature splitting in ¹⁶²Lu is larger than that in ¹⁶⁰Tm nucleus

[en] High Spin states of the odd-odd ¹⁶²Lu nucleus have been studied via ¹⁴⁷Sm(¹⁹F,4nγ) reaction at 90 MeV beam energy. Level scheme for yrast band based on π[h_11/2]ν[i_13/2] configuration was established, for the first time, up to I^π = 23^-. This band shows the signature inversion in energy before band-bending generally appeared in this mass region. It is stressed that the signature splitting in ¹⁶²Lu is bigger than that in ¹⁶⁰Tm which could be understood in the framework of the cranked shell model if taking positive γ-triaxiality into account

No abstract available

[en] Short communication

No abstract available