INTRUDER BANDS IN SN-108

R Wadsworth; H R Andrews; R M Clark; D B Fossan; A Galindouribarri; J R Hughes; V P Janzen; D R Lafosse; S M Mullins; E S Paul; D C Radford; H Schnare; P Vaska; D Ward; J N Wilson; R Wyss

INTRUDER BANDS IN SN-108

R Wadsworth, H R Andrews, R M Clark, D B Fossan, A Galindouribarri, J R Hughes, V P Janzen, D R Lafosse, S M Mullins, E S Paul, D C Radford, H Schnare, P Vaska, D Ward, J N Wilson, R Wyss

Physics

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

Abstract

The nucleus 108Sn has been populated via the Fe-54(Ni-58, 4p) reaction channel at a beam energy of 243 MeV. The high-spin structure is dominated by three DELTAI = 2 rotational sequences. These bands can be interpreted in terms of particle-hole excitations involving the proton g7/2, g9/2 and h11/2 orbitals and also aligned neutrons from the bottom of the h11/2 shell. Lifetime measurements have also been performed using the Doppler-shift attenuation method. These data have enabled quadrupole moments to be deduced for the two strongest bands. The results yield Q0 = 2.6 +/- 0.4 e . b for the positive-parity band and 3.4 +/- 0.6 e . b for one of the proposed negative-parity bands. These values yield quadrupole deformations of beta2 = 0.20 and 0.26, respectively, for the two bands. The results obtained are discussed in terms of Woods-Saxon and total routhian surface calculations.

Original language	English
Pages (from-to)	461-476
Number of pages	16
Journal	Nuclear Physics A
Volume	559
Issue number	3
Publication status	Published - 28 Jun 1993

Keywords

FE-54(NI-58,4P)
E = 243 MEV
MEASURED E-GAMMA(THETA)
SN-108 DEDUCED LEVELS
J, PI
BAND STRUCTURE
QUADRUPOLE MOMENT
COMPARISON WITH TRS AND WOODS-SAXON CALCULATIONS
ENRICHED TARGETS
GE DETECTORS
BGO SUPPRESSION SHIELDS
QUADRUPOLE-MOMENTS
MASS REGION
STATES
NUCLEI
SHELL

Cite this

@article{f7d4960cab9d44b7804f9af61eedf285,

title = "INTRUDER BANDS IN SN-108",

abstract = "The nucleus 108Sn has been populated via the Fe-54(Ni-58, 4p) reaction channel at a beam energy of 243 MeV. The high-spin structure is dominated by three DELTAI = 2 rotational sequences. These bands can be interpreted in terms of particle-hole excitations involving the proton g7/2, g9/2 and h11/2 orbitals and also aligned neutrons from the bottom of the h11/2 shell. Lifetime measurements have also been performed using the Doppler-shift attenuation method. These data have enabled quadrupole moments to be deduced for the two strongest bands. The results yield Q0 = 2.6 +/- 0.4 e . b for the positive-parity band and 3.4 +/- 0.6 e . b for one of the proposed negative-parity bands. These values yield quadrupole deformations of beta2 = 0.20 and 0.26, respectively, for the two bands. The results obtained are discussed in terms of Woods-Saxon and total routhian surface calculations.",

keywords = "FE-54(NI-58,4P), E = 243 MEV, MEASURED E-GAMMA(THETA), SN-108 DEDUCED LEVELS, J, PI, BAND STRUCTURE, QUADRUPOLE MOMENT, COMPARISON WITH TRS AND WOODS-SAXON CALCULATIONS, ENRICHED TARGETS, GE DETECTORS, BGO SUPPRESSION SHIELDS, QUADRUPOLE-MOMENTS, MASS REGION, STATES, NUCLEI, SHELL",

author = "R Wadsworth and Andrews, {H R} and Clark, {R M} and Fossan, {D B} and A Galindouribarri and Hughes, {J R} and Janzen, {V P} and Lafosse, {D R} and Mullins, {S M} and Paul, {E S} and Radford, {D C} and H Schnare and P Vaska and D Ward and Wilson, {J N} and R Wyss",

year = "1993",

month = jun,

day = "28",

language = "English",

volume = "559",

pages = "461--476",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - INTRUDER BANDS IN SN-108

AU - Wadsworth, R

AU - Andrews, H R

AU - Clark, R M

AU - Fossan, D B

AU - Galindouribarri, A

AU - Hughes, J R

AU - Janzen, V P

AU - Lafosse, D R

AU - Mullins, S M

AU - Paul, E S

AU - Radford, D C

AU - Schnare, H

AU - Vaska, P

AU - Ward, D

AU - Wilson, J N

AU - Wyss, R

PY - 1993/6/28

Y1 - 1993/6/28

N2 - The nucleus 108Sn has been populated via the Fe-54(Ni-58, 4p) reaction channel at a beam energy of 243 MeV. The high-spin structure is dominated by three DELTAI = 2 rotational sequences. These bands can be interpreted in terms of particle-hole excitations involving the proton g7/2, g9/2 and h11/2 orbitals and also aligned neutrons from the bottom of the h11/2 shell. Lifetime measurements have also been performed using the Doppler-shift attenuation method. These data have enabled quadrupole moments to be deduced for the two strongest bands. The results yield Q0 = 2.6 +/- 0.4 e . b for the positive-parity band and 3.4 +/- 0.6 e . b for one of the proposed negative-parity bands. These values yield quadrupole deformations of beta2 = 0.20 and 0.26, respectively, for the two bands. The results obtained are discussed in terms of Woods-Saxon and total routhian surface calculations.

AB - The nucleus 108Sn has been populated via the Fe-54(Ni-58, 4p) reaction channel at a beam energy of 243 MeV. The high-spin structure is dominated by three DELTAI = 2 rotational sequences. These bands can be interpreted in terms of particle-hole excitations involving the proton g7/2, g9/2 and h11/2 orbitals and also aligned neutrons from the bottom of the h11/2 shell. Lifetime measurements have also been performed using the Doppler-shift attenuation method. These data have enabled quadrupole moments to be deduced for the two strongest bands. The results yield Q0 = 2.6 +/- 0.4 e . b for the positive-parity band and 3.4 +/- 0.6 e . b for one of the proposed negative-parity bands. These values yield quadrupole deformations of beta2 = 0.20 and 0.26, respectively, for the two bands. The results obtained are discussed in terms of Woods-Saxon and total routhian surface calculations.

KW - FE-54(NI-58,4P)

KW - E = 243 MEV

KW - MEASURED E-GAMMA(THETA)

KW - SN-108 DEDUCED LEVELS

KW - J, PI

KW - BAND STRUCTURE

KW - QUADRUPOLE MOMENT

KW - COMPARISON WITH TRS AND WOODS-SAXON CALCULATIONS

KW - ENRICHED TARGETS

KW - GE DETECTORS

KW - BGO SUPPRESSION SHIELDS

KW - QUADRUPOLE-MOMENTS

KW - MASS REGION

KW - STATES

KW - NUCLEI

KW - SHELL

M3 - Article

SN - 0375-9474

VL - 559

SP - 461

EP - 476

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 3

ER -