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Hf NMR-ON

Hf NMR-ON. Presented by: Phil Walker, University of Surrey. 178 Hf is at the centre of the multi-quasiparticle K-isomer region. skyscrapers. 4- and 5-quasiparticle isomer half-lives. 178 Hf (10 9 s = 31 y) 2.4 MeV, 16ħ. [Walker and Dracoulis, Hyp. Int. 135 (2001) 83].

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Hf NMR-ON

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  1. Hf NMR-ON Presented by: Phil Walker, University of Surrey

  2. 178Hf is at the centre of the multi-quasiparticle K-isomer region skyscrapers 4- and 5-quasiparticle isomer half-lives 178Hf (109 s = 31 y) 2.4 MeV, 16ħ [Walker and Dracoulis, Hyp. Int. 135 (2001) 83]

  3. [Mullins et al., PRC58 (1998) 831] 177Hf levels combination of both measurements => gK and gR

  4. g-factors for deformed nuclei combination of both measurements => gK and gR single-particle properties collective properties => configurations and admixtures see, for example: Purry et al., NPA632 (1998) 229 El-Masri et al., PRC72 (2005) 054306 => neutron and proton pair quenching

  5. laser data Laser spectroscopy results Hf [Bissell et al., Phys Lett. B645 (2007) 330]

  6. 178Hf gR values K=0 gR= 0.240(14) K=6 π2gR= 0.35(5) K=16 π2ν2gR= 0.28(4) more data needed, more-accurate data needed [K=6, 16: Mullins et al., Phys. Lett. B393 (1997) 279]

  7. Hf dipole moments

  8. NICOLE on-line at ISOLDE NMR/ON RF field destroys anisotropy B field creates anisotropy at low T (~10 mK) 175Hf cold sample [Muto et al., Hyp. Int. 158 (2004) 195]

  9. hafnium γ-ray anisotropies

  10. hafniumg-factors gK and gR single-particle properties collective properties configurations pairing effects 15 shifts requested (4 x 3.5 + 1 for 25-d source)

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