Delayed neutron alignment in I117

TY - JOUR

T1 - Delayed neutron alignment in I117

AU - Paul, E. S.

AU - Waring, M. P.

AU - Clark, R. M.

AU - Forbes, S. A.

AU - Fossan, D. B.

AU - Hughes, J. R.

AU - LaFosse, D. R.

AU - Liang, Y.

AU - Ma, R.

AU - Vaska, P.

AU - Wadsworth, R.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - The rotational alignment of h11/2 neutrons is considerably delayed (Latin small letter h with stroke0.11 MeV) in the h11/2[550]1/2- intruder band in I117 when compared to bands built on normal-parity states. Comparison with cranked shell-model calculations suggests that this effect may indicate a larger quadrupole deformation for the intruder orbital. A strong neutron-proton interaction between the aligning h11/2 neutrons and the h11/2 proton intruder may also play a role. In addition, noncollective oblate states at I=39/2-,43/2-, and 45/2- compete energetically with rotational states of the intruder band which may also perturb the neutron alignment.

AB - The rotational alignment of h11/2 neutrons is considerably delayed (Latin small letter h with stroke0.11 MeV) in the h11/2[550]1/2- intruder band in I117 when compared to bands built on normal-parity states. Comparison with cranked shell-model calculations suggests that this effect may indicate a larger quadrupole deformation for the intruder orbital. A strong neutron-proton interaction between the aligning h11/2 neutrons and the h11/2 proton intruder may also play a role. In addition, noncollective oblate states at I=39/2-,43/2-, and 45/2- compete energetically with rotational states of the intruder band which may also perturb the neutron alignment.

UR - http://www.scopus.com/inward/record.url?scp=0000616301&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.45.R2531

DO - 10.1103/PhysRevC.45.R2531

M3 - Article

AN - SCOPUS:0000616301

SN - 0556-2813

VL - 45

SP - R2531-R2535

JO - Physical Review C

JF - Physical Review C

IS - 6

ER -