Walker, P. M.Dracoulis, G. D.Byrne, A. P.Fabricius, B.Kibedi, T.Stuchbery, A. E.Rowley, N.2025-06-052025-06-050375-9474ORCID:/0000-0002-9205-7500/work/165393938ORCID:/0000-0002-0198-9901/work/165394364http://www.scopus.com/inward/record.url?scp=33847623568&partnerID=8YFLogxKhttps://hdl.handle.net/1885/733757825High-spin states in 179W have been studied following the 170Er(su13C, 4n) reaction. Rotational bands up to ifI 53 2 have been identified, based on 1-, 3-, 5- and 7-quasiparticle structures. Different alignment mechanisms compete in the generation of angular momentum at the yrast line. A Fermi-aligned if(i 13 2)2 structure, coupled to high-K and to the if 7 2-[514] orbital, forms the negative-parity yrast sequence above ifIπ = 31 2-. This may be called a "t-band" since its description within the cranking model requires a "tilting" of the cranking axis. The anomalous decay of the ifKπ = 35 2- 5-quasiparticle isomer is explained as arising from destructive interference of transition amplitudes coupling to the Fermi-aligned structure. Detailed analysis of the excitation energies of the multi-quasiparticle states indicates the quenching of both neutron and proton pair correlations, by comparison with blocking calculations.48enCopyright © 1994 Published by Elsevier B.V.NUCLEAR REACTIONS1994-02-1410.1016/0375-9474(94)90209-733847623568