Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei

I. Stefanescu; W. B. Walters; R. V. F. Janssens; S. Zhu; R. Broda; M. P. Carpenter; C. J. Chiara; B. Fornal; B. P. Kay; F. G. Kondev; W. Krolas; T. Lauritsen; C. J. Lister; E. A. McCutchan; T. Pawlat; D. Seweryniak; J. R. Stone; N. J. Stone; J. Wrzesinski

doi:10.1103/PhysRevC.79.064302

Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei

I. Stefanescu, W. B. Walters, R. V. F. Janssens, S. Zhu, R. Broda, M. P. Carpenter, C. J. Chiara, B. Fornal, B. P. Kay, F. G. Kondev, W. Krolas, T. Lauritsen, C. J. Lister, E. A. McCutchan, T. Pawlat, D. Seweryniak, J. R. Stone, N. J. Stone, J. Wrzesinski

Physics

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Abstract

Excited states in the odd-A Ga-71,Ga-73,Ga-75,Ga-77 nuclei have been populated in deep-inelastic reactions of a Ge-76 beam at 530 MeV with a thick U-238 target. High-spin sequences built upon the 9/2(+), 5/2(-), and 3/2(-) states were identified in all four isotopes. A comparison of the observed structures with the yrast positive-parity states in the neighboring even-even Zn cores indicates that the newly identified levels may be regarded as arising from the relatively weak coupling of the odd proton to the core states. However, significant contributions from broken pairs are expected to be present in this region of excitation energy. The present data set also provides clarification of previously reported decay paths of the low-energy levels in Ga-71,Ga-73,Ga-75,Ga-77.</p>.

Original language	English
Article number	064302
Number of pages	12
Journal	Physical Review C
Volume	79
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.79.064302
Publication status	Published - 2 Jun 2009

Keywords

EXCITED-STATES
GA ISOTOPES
BETA-DECAY
GA-73
GA-69
MODEL

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10.1103/PhysRevC.79.064302

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Stefanescu, I., Walters, W. B., Janssens, R. V. F., Zhu, S., Broda, R., Carpenter, M. P., Chiara, C. J., Fornal, B., Kay, B. P., Kondev, F. G., Krolas, W., Lauritsen, T., Lister, C. J., McCutchan, E. A., Pawlat, T., Seweryniak, D., Stone, J. R., Stone, N. J., & Wrzesinski, J. (2009). Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei. Physical Review C, 79(6), Article 064302. https://doi.org/10.1103/PhysRevC.79.064302

@article{7e13b5fb14944a87b5d914a8803bb18c,

title = "Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei",

abstract = "Excited states in the odd-A Ga-71,Ga-73,Ga-75,Ga-77 nuclei have been populated in deep-inelastic reactions of a Ge-76 beam at 530 MeV with a thick U-238 target. High-spin sequences built upon the 9/2(+), 5/2(-), and 3/2(-) states were identified in all four isotopes. A comparison of the observed structures with the yrast positive-parity states in the neighboring even-even Zn cores indicates that the newly identified levels may be regarded as arising from the relatively weak coupling of the odd proton to the core states. However, significant contributions from broken pairs are expected to be present in this region of excitation energy. The present data set also provides clarification of previously reported decay paths of the low-energy levels in Ga-71,Ga-73,Ga-75,Ga-77..",

keywords = "EXCITED-STATES, GA ISOTOPES, BETA-DECAY, GA-73, GA-69, MODEL",

author = "I. Stefanescu and Walters, {W. B.} and Janssens, {R. V. F.} and S. Zhu and R. Broda and Carpenter, {M. P.} and Chiara, {C. J.} and B. Fornal and Kay, {B. P.} and Kondev, {F. G.} and W. Krolas and T. Lauritsen and Lister, {C. J.} and McCutchan, {E. A.} and T. Pawlat and D. Seweryniak and Stone, {J. R.} and Stone, {N. J.} and J. Wrzesinski",

year = "2009",

month = jun,

day = "2",

doi = "10.1103/PhysRevC.79.064302",

language = "English",

volume = "79",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

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Stefanescu, I, Walters, WB, Janssens, RVF, Zhu, S, Broda, R, Carpenter, MP, Chiara, CJ, Fornal, B, Kay, BP, Kondev, FG, Krolas, W, Lauritsen, T, Lister, CJ, McCutchan, EA, Pawlat, T, Seweryniak, D, Stone, JR, Stone, NJ & Wrzesinski, J 2009, 'Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei', Physical Review C, vol. 79, no. 6, 064302. https://doi.org/10.1103/PhysRevC.79.064302

TY - JOUR

T1 - Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei

AU - Stefanescu, I.

AU - Walters, W. B.

AU - Janssens, R. V. F.

AU - Zhu, S.

AU - Broda, R.

AU - Carpenter, M. P.

AU - Chiara, C. J.

AU - Fornal, B.

AU - Kay, B. P.

AU - Kondev, F. G.

AU - Krolas, W.

AU - Lauritsen, T.

AU - Lister, C. J.

AU - McCutchan, E. A.

AU - Pawlat, T.

AU - Seweryniak, D.

AU - Stone, J. R.

AU - Stone, N. J.

AU - Wrzesinski, J.

PY - 2009/6/2

Y1 - 2009/6/2

N2 - Excited states in the odd-A Ga-71,Ga-73,Ga-75,Ga-77 nuclei have been populated in deep-inelastic reactions of a Ge-76 beam at 530 MeV with a thick U-238 target. High-spin sequences built upon the 9/2(+), 5/2(-), and 3/2(-) states were identified in all four isotopes. A comparison of the observed structures with the yrast positive-parity states in the neighboring even-even Zn cores indicates that the newly identified levels may be regarded as arising from the relatively weak coupling of the odd proton to the core states. However, significant contributions from broken pairs are expected to be present in this region of excitation energy. The present data set also provides clarification of previously reported decay paths of the low-energy levels in Ga-71,Ga-73,Ga-75,Ga-77..

AB - Excited states in the odd-A Ga-71,Ga-73,Ga-75,Ga-77 nuclei have been populated in deep-inelastic reactions of a Ge-76 beam at 530 MeV with a thick U-238 target. High-spin sequences built upon the 9/2(+), 5/2(-), and 3/2(-) states were identified in all four isotopes. A comparison of the observed structures with the yrast positive-parity states in the neighboring even-even Zn cores indicates that the newly identified levels may be regarded as arising from the relatively weak coupling of the odd proton to the core states. However, significant contributions from broken pairs are expected to be present in this region of excitation energy. The present data set also provides clarification of previously reported decay paths of the low-energy levels in Ga-71,Ga-73,Ga-75,Ga-77..

KW - EXCITED-STATES

KW - GA ISOTOPES

KW - BETA-DECAY

KW - GA-73

KW - GA-69

KW - MODEL

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U2 - 10.1103/PhysRevC.79.064302

DO - 10.1103/PhysRevC.79.064302

M3 - Article

SN - 2469-9985

VL - 79

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064302

ER -

Identification of the g(9/2)-proton bands in the neutron-rich Ga-71,Ga-73,Ga-75,Ga-77 nuclei

Abstract

Keywords

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