Identification of Excited States in 61Ga: Mirror Nuclei in the Upper fp Shell

Lise-Lotte Andersson; Emma Johansson; Jörgen Ekman; Dirk Rudolph; Rickard du Rietz; Claes Fahlander; CJ Gross; PA Hausladen; DC Radford; G Hammond

doi:10.1103/PhysRevC.71.011303

Identification of Excited States in 61Ga: Mirror Nuclei in the Upper fp Shell

Lise-Lotte Andersson, Emma Johansson, Jörgen Ekman, Dirk Rudolph, Rickard du Rietz, Claes Fahlander, CJ Gross, PA Hausladen, DC Radford, G Hammond

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Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

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In the fusion-evaporation reaction Ca-40+Mg-24 at 104 MeV beam energy, excited states have been observed for the first time in the isotope Ga-31(61)30. The experimental setup comprised the Ge array CLARION, a recoil mass spectrometer and, in its focal plane, an ionization chamber. Five transitions in Ga-61 are identified, out of which a cascade of three transitions has been established by means of recoil-gammagamma coincidences. The strong transitions at 271 keV in Ga-61 and 124 keV in Zn-61 are viewed as the "mirror" 5/2(-)-->3/2(-) ground-state transitions. The rather large energy difference of 150 keV is suggested to arise from Coulomb monopole contributions. Shell-model calculations support this interpretation.

Originalspråk	engelska
Artikelnummer	011303(R)
Tidskrift	Physical Review C (Nuclear Physics)
Volym	71
Nummer	1
DOI	https://doi.org/10.1103/PhysRevC.71.011303
Status	Published - 2005

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10.1103/PhysRevC.71.011303

1 Artikel i vetenskaplig tidskrift
1 Doktorsavhandling (sammanläggning)

Mirror energy differences above the 0f_7/2 shell: First γ-ray spectroscopy of the T_z=−2 nucleus ⁵⁶Zn
Fernández, A., Jungclaus, A., Doornenbal, P., Bentley, M. A., Lenzi, S. M., Rudolph, D., Browne, F., Cortés, M. L., Koiwai, T., Taniuchi, R., Vaquero, V., Wimmer, K., Arici, T., Imai, N., Kitamura, N., Longfellow, B., Lozeva, R., Mauss, B., Napoli, D. R., Niikura, M., & 9 andraPereira-Lopez, X., Pigliapoco, S., Poves, A., Recchia, F., Ruotsalainen, P., Sakurai, H., Uthayakumaar, S., Wadsworth, R. & Yajzey, R., 2021 dec. 10, I: Physics Letters B. 823, 5 s., 136784.
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

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A Trilogy of Mass A=61 : Superdeformed Structures, Exotic Decay, and Isospin Symmetry
Andersson, L-L., 2008, Lund University (Media-Tryck). 214 s.
Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)

1 Avslutade

A Trilogy of Mass A=61: Superdeformed Structures, Exotic Decay, and Isospin Symmetry
Andersson, L., Rudolph, D. & Fahlander, C.
2004/05/01 → 2008/09/30
Projekt: Avhandling

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title = "Identification of Excited States in 61Ga: Mirror Nuclei in the Upper fp Shell",

abstract = "In the fusion-evaporation reaction Ca-40+Mg-24 at 104 MeV beam energy, excited states have been observed for the first time in the isotope Ga-31(61)30. The experimental setup comprised the Ge array CLARION, a recoil mass spectrometer and, in its focal plane, an ionization chamber. Five transitions in Ga-61 are identified, out of which a cascade of three transitions has been established by means of recoil-gammagamma coincidences. The strong transitions at 271 keV in Ga-61 and 124 keV in Zn-61 are viewed as the {"}mirror{"} 5/2(-)-->3/2(-) ground-state transitions. The rather large energy difference of 150 keV is suggested to arise from Coulomb monopole contributions. Shell-model calculations support this interpretation.",

author = "Lise-Lotte Andersson and Emma Johansson and J{\"o}rgen Ekman and Dirk Rudolph and {du Rietz}, Rickard and Claes Fahlander and CJ Gross and PA Hausladen and DC Radford and G Hammond",

year = "2005",

doi = "10.1103/PhysRevC.71.011303",

language = "English",

volume = "71",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

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T1 - Identification of Excited States in 61Ga: Mirror Nuclei in the Upper fp Shell

AU - Andersson, Lise-Lotte

AU - Johansson, Emma

AU - Ekman, Jörgen

AU - Rudolph, Dirk

AU - du Rietz, Rickard

AU - Fahlander, Claes

AU - Gross, CJ

AU - Hausladen, PA

AU - Radford, DC

AU - Hammond, G

PY - 2005

Y1 - 2005

N2 - In the fusion-evaporation reaction Ca-40+Mg-24 at 104 MeV beam energy, excited states have been observed for the first time in the isotope Ga-31(61)30. The experimental setup comprised the Ge array CLARION, a recoil mass spectrometer and, in its focal plane, an ionization chamber. Five transitions in Ga-61 are identified, out of which a cascade of three transitions has been established by means of recoil-gammagamma coincidences. The strong transitions at 271 keV in Ga-61 and 124 keV in Zn-61 are viewed as the "mirror" 5/2(-)-->3/2(-) ground-state transitions. The rather large energy difference of 150 keV is suggested to arise from Coulomb monopole contributions. Shell-model calculations support this interpretation.

AB - In the fusion-evaporation reaction Ca-40+Mg-24 at 104 MeV beam energy, excited states have been observed for the first time in the isotope Ga-31(61)30. The experimental setup comprised the Ge array CLARION, a recoil mass spectrometer and, in its focal plane, an ionization chamber. Five transitions in Ga-61 are identified, out of which a cascade of three transitions has been established by means of recoil-gammagamma coincidences. The strong transitions at 271 keV in Ga-61 and 124 keV in Zn-61 are viewed as the "mirror" 5/2(-)-->3/2(-) ground-state transitions. The rather large energy difference of 150 keV is suggested to arise from Coulomb monopole contributions. Shell-model calculations support this interpretation.

U2 - 10.1103/PhysRevC.71.011303

DO - 10.1103/PhysRevC.71.011303

M3 - Article

SN - 2469-9985

VL - 71

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 011303(R)

ER -

Identification of Excited States in 61Ga: Mirror Nuclei in the Upper fp Shell

Sammanfattning

Ämnesklassifikation (UKÄ)

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Forskningsoutput

Mirror energy differences above the 0f7/2 shell: First γ-ray spectroscopy of the Tz=−2 nucleus 56Zn

A Trilogy of Mass A=61 : Superdeformed Structures, Exotic Decay, and Isospin Symmetry

Projekt

A Trilogy of Mass A=61: Superdeformed Structures, Exotic Decay, and Isospin Symmetry

Citera det här

Mirror energy differences above the 0f_7/2 shell: First γ-ray spectroscopy of the T_z=−2 nucleus ⁵⁶Zn