6533b872fe1ef96bd12d2b05
RESEARCH PRODUCT
Oblately deformed isomeric proton-emitting state in 151Lu
M J {Taylor}Dave CullenM G {Procter}A J {Smith}A {Mcfarlane}V {Twist}G A {Alharshan}L S {Ferreira}E {Maglione}K {Auranen}T {Grahn}P T {Greenlees}K {Hauschild}A {Herzan}U {Jakobsson}R {Julin}S {Juutinen}S {Ketelhut}J {Konki}M {Leino}A {Lopez-martens}J {Pakarinen}J {Partanen}P {Peura}P {Rahkila}S {Rinta-antila}P {Ruotsalainen}M {Sandzelius}J {Saren}C {Scholey}J {Sorri}S {Stolze}J {Uusitalo}M {Doncel}subject
lutetiumNuclear TheoryPhysics::Accelerator PhysicsNuclear Experimentdescription
Gamma rays from excited states feeding a proton-emitting isomeric-state in 151Lu have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, 3/2+ proton-emitting state with a quadrupole deformation of β2 = −0.11. The calculations suggest an increase in quadrupole deformation, to β2 = −0.18, with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a 3/2+ state with a quadrupole deformation of β2 = −0.12. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 |