@article {Mason201017,
	title = {Isomer-tagged differential-plunger measurements in proton-unbound 144Ho},
	journal = {Physics Letters B},
	volume = {683},
	number = {1},
	year = {2010},
	pages = {17 - 20},
	abstract = {The lifetime of an excited state above a weakly populated isomer in the proton-unbound odd{\quotesinglbase}{\"A}{\`\i}odd nucleus 144Ho has been measured using the recoil distance Doppler shift method. This measurement represents the first differential-plunger lifetime measurement to utilize recoil-isomer tagging. The first excited I {\oe}{\"A} = ( 10 + ) state above the two-quasiparticle {\oe}{\"A} h 11 / 2 {\quotesinglbase}{\"a}?{\OE}Ω h 11 / 2 ( 8 + ) isomer was determined to have a lifetime of {\oe}{\~N} = 6 ( 1 ) {\textlnot}{\textdagger} ps . Potential energy surface calculations, based on the configuration-constrained blocking method, predict the isomeric state to have {\OE}>=-soft triaxial-nuclear shape with | {\OE}>= | {\quotesinglbase}{\^a}?24 {\textlnot}$\infty$ . The lifetime of the ( 10 + ) state can be understood from these calculations if there is a degree of rotational alignment in this band, with the K value being lower than the bandhead spin. However, the validity of the K quantum number with large predicted triaxiality and gamma softness requires further theoretical study.},
	issn = {0370-2693},
	doi = {http://dx.doi.org/10.1016/j.physletb.2009.11.042},
	url = {http://www.sciencedirect.com/science/article/pii/S0370269309013999},
	author = {Mason, P. J. R. and Cullen, D. M. and Scholey, C. and Dewald, A. and O. M√∂ller and H. Iwasaki and Pissulla, T. and Rother, W. and J.A. Dare and Greenlees, P. T. and Jakobsson, U. and Jones, P. M. and Julin, R. and Juutinen, S. and Ketelhut, S. and Leino, M. and Lumley, N. M. and B. Niclasen and Nyman, M. and Peura, P. and Puurunen, A. and Rahkila, P. and Ruotsalainen, P. and Sorri, J. and J. Sar√{\textcopyright}n and Uusitalo, J. and F.R. Xu}
}
