First observation of a rotational band in odd Sn50 nuclei: Sn111

TY - JOUR

T1 - First observation of a rotational band in odd Sn50 nuclei

T2 - Sn111

AU - LaFosse, D. R.

AU - Fossan, D. B.

AU - Hughes, J. R.

AU - Liang, Y.

AU - Vaska, P.

AU - Waring, M. P.

AU - Zhang, J. Y.

AU - Clark, R. M.

AU - Wadsworth, R.

AU - Forbes, S. A.

AU - Paul, E. S.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Proton particle-hole excitations across the Z=50 closed shell are responsible for inducing low-lying prolate deformation in even-50Sn nuclei. Although related rotational bands have been studied in odd-51Sb isotopes involving the coupling of a valence proton, none had been found in odd-50Sn nuclei. Using the Ru96(19F,3pn) reaction, a decoupled band has been observed in Sn111 extending to a spin-parity of (67/2-) and feeding out at 23/2- into spherical states. This band is interpreted as the νh11/2 valence orbital coupled to the deformed [(πg7/2)2(πg9/2)-2] Sn110 core. The extracted band properties are compared to those in Sb111 with the same deformed core.

AB - Proton particle-hole excitations across the Z=50 closed shell are responsible for inducing low-lying prolate deformation in even-50Sn nuclei. Although related rotational bands have been studied in odd-51Sb isotopes involving the coupling of a valence proton, none had been found in odd-50Sn nuclei. Using the Ru96(19F,3pn) reaction, a decoupled band has been observed in Sn111 extending to a spin-parity of (67/2-) and feeding out at 23/2- into spherical states. This band is interpreted as the νh11/2 valence orbital coupled to the deformed [(πg7/2)2(πg9/2)-2] Sn110 core. The extracted band properties are compared to those in Sb111 with the same deformed core.

UR - http://www.scopus.com/inward/record.url?scp=0001472932&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.51.R2876

DO - 10.1103/PhysRevC.51.R2876

M3 - Article

AN - SCOPUS:0001472932

SN - 0556-2813

VL - 51

SP - R2876-R2879

JO - Physical Review C

JF - Physical Review C

IS - 6

ER -