NEUTRON I-13/2 INTRUDER BAND IN SM-139

P Vaska; S Bhattacharjee; D B Fossan; D R Lafosse; Y Liang; H Schnare; K Starosta; M P Waring; I Hibbert; R Wadsworth; K Hauschild; C W Beausang; S Clarke; S A Forbes; P J Nolan; E S Paul; A T Semple; S M Mullins; H Grawe; K H Maier

NEUTRON I-13/2 INTRUDER BAND IN SM-139

P Vaska, S Bhattacharjee, D B Fossan, D R Lafosse, Y Liang, H Schnare, K Starosta, M P Waring, I Hibbert, R Wadsworth, K Hauschild, C W Beausang, S Clarke, S A Forbes, P J Nolan, E S Paul, A T Semple, S M Mullins, H Grawe, K H Maier

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The high-spin structure of Sm-139 has been investigated with the (Pd(S,5n))-Pd-110-S-34 reaction at a beam energy of 159 MeV at the Stony Brook Tandem/Superconducting LINAC facility. The TESSA3 spectrometer array was used to collect gamma-gamma coincidence data from which an extended decoupled band structure has been found. It is proposed that this band is based on the i13/2 (OMEGA = 1/2) neutron intruder orbital. The decay pattern, enhanced dynamic moments of inertia, and aligned spins are consistent with the nui13/2 bands in neighboring odd-neutron nuclides. Total Routhian surface and cranked shell model calculations reproduce qualitative features of these nuclides, further supporting the proposed interpretation.

Original language	English
Pages (from-to)	104-109
Number of pages	6
Journal	Physical Review C
Volume	50
Issue number	1
Publication status	Published - Jul 1994

Keywords

GD-139

Cite this

@article{0c45275cd98f48a2b2f6f4df13e35fe4,

title = "NEUTRON I-13/2 INTRUDER BAND IN SM-139",

abstract = "The high-spin structure of Sm-139 has been investigated with the (Pd(S,5n))-Pd-110-S-34 reaction at a beam energy of 159 MeV at the Stony Brook Tandem/Superconducting LINAC facility. The TESSA3 spectrometer array was used to collect gamma-gamma coincidence data from which an extended decoupled band structure has been found. It is proposed that this band is based on the i13/2 (OMEGA = 1/2) neutron intruder orbital. The decay pattern, enhanced dynamic moments of inertia, and aligned spins are consistent with the nui13/2 bands in neighboring odd-neutron nuclides. Total Routhian surface and cranked shell model calculations reproduce qualitative features of these nuclides, further supporting the proposed interpretation.",

keywords = "GD-139",

author = "P Vaska and S Bhattacharjee and Fossan, {D B} and Lafosse, {D R} and Y Liang and H Schnare and K Starosta and Waring, {M P} and I Hibbert and R Wadsworth and K Hauschild and Beausang, {C W} and S Clarke and Forbes, {S A} and Nolan, {P J} and Paul, {E S} and Semple, {A T} and Mullins, {S M} and H Grawe and Maier, {K H}",

year = "1994",

month = jul,

language = "English",

volume = "50",

pages = "104--109",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - NEUTRON I-13/2 INTRUDER BAND IN SM-139

AU - Vaska, P

AU - Bhattacharjee, S

AU - Fossan, D B

AU - Lafosse, D R

AU - Liang, Y

AU - Schnare, H

AU - Starosta, K

AU - Waring, M P

AU - Hibbert, I

AU - Wadsworth, R

AU - Hauschild, K

AU - Beausang, C W

AU - Clarke, S

AU - Forbes, S A

AU - Nolan, P J

AU - Paul, E S

AU - Semple, A T

AU - Mullins, S M

AU - Grawe, H

AU - Maier, K H

PY - 1994/7

Y1 - 1994/7

N2 - The high-spin structure of Sm-139 has been investigated with the (Pd(S,5n))-Pd-110-S-34 reaction at a beam energy of 159 MeV at the Stony Brook Tandem/Superconducting LINAC facility. The TESSA3 spectrometer array was used to collect gamma-gamma coincidence data from which an extended decoupled band structure has been found. It is proposed that this band is based on the i13/2 (OMEGA = 1/2) neutron intruder orbital. The decay pattern, enhanced dynamic moments of inertia, and aligned spins are consistent with the nui13/2 bands in neighboring odd-neutron nuclides. Total Routhian surface and cranked shell model calculations reproduce qualitative features of these nuclides, further supporting the proposed interpretation.

AB - The high-spin structure of Sm-139 has been investigated with the (Pd(S,5n))-Pd-110-S-34 reaction at a beam energy of 159 MeV at the Stony Brook Tandem/Superconducting LINAC facility. The TESSA3 spectrometer array was used to collect gamma-gamma coincidence data from which an extended decoupled band structure has been found. It is proposed that this band is based on the i13/2 (OMEGA = 1/2) neutron intruder orbital. The decay pattern, enhanced dynamic moments of inertia, and aligned spins are consistent with the nui13/2 bands in neighboring odd-neutron nuclides. Total Routhian surface and cranked shell model calculations reproduce qualitative features of these nuclides, further supporting the proposed interpretation.

KW - GD-139

M3 - Article

SN - 2469-9985

VL - 50

SP - 104

EP - 109

JO - Physical Review C

JF - Physical Review C

IS - 1

ER -