Coulomb excitation of Ga-73

J. Diriken; I. Stefanescu; D. Balabanski; N. Blasi; A. Blazhev; N. Bree; J. Cederkaell; T. E. Cocolios; T. Davinson; J. Eberth; A. Ekstrom; D. V. Fedorov; V. N. Fedosseev; L. M. Fraile; S. Franchoo; G. Georgiev; K. Gladnishki; M. Huyse; O. V. Ivanov; V. S. Ivanov; J. Iwanicki; J. Jolie; T. Konstantinopoulos; Th. Kroell; R. Kruecken; U. Koester; A. Lagoyannis; G. Lo Bianco; P. Maierbeck; B. A. Marsh; P. Napiorkowski; N. Patronis; D. Pauwels; P. Reiter; M. Seliverstov; G. Sletten; J. Van de Walle; P. Van Duppen; D. Voulot; W. B. Walters; N. Warr; F. Wenander; K. Wrzosek

doi:10.1103/physrevc.82.064309

Coulomb excitation of Ga-73

J. Diriken^*, I. Stefanescu, D. Balabanski, N. Blasi, A. Blazhev, N. Bree, J. Cederkaell, T. E. Cocolios, T. Davinson, J. Eberth, A. Ekstrom, D. V. Fedorov, V. N. Fedosseev, L. M. Fraile, S. Franchoo, G. Georgiev, K. Gladnishki, M. Huyse, O. V. Ivanov, V. S. IvanovJ. Iwanicki, J. Jolie, T. Konstantinopoulos, Th. Kroell, R. Kruecken, U. Koester, A. Lagoyannis, G. Lo Bianco, P. Maierbeck, B. A. Marsh, P. Napiorkowski, N. Patronis, D. Pauwels, P. Reiter, M. Seliverstov, G. Sletten, J. Van de Walle, P. Van Duppen, D. Voulot, W. B. Walters, N. Warr, F. Wenander, K. Wrzosek

^*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

The B(E2; I-i -> I-f) values for transitions in Ga-71(31)40 and Ga-73(31)42 were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of Ga-71,Ga-73 at the REX-ISOLDE on-line isotope mass separator facility. The emitted gamma rays were detected by the MINIBALL gamma-detector array, and B(E2; I-i -> I-f) values were obtained from the yields normalized to the known strength of the 2(+) -> 0(+) transition in the Sn-120 target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2(-) spin and parity for the ground state, the extracted results revealed evidence for a 1/2(-), 3/2(-) doublet near the ground state in Ga-73(31)42 differing by at most 0.8 keV in energy.

Original language	English
Article number	064309
Number of pages	6
Journal	Physical Review C
Volume	82
Issue number	6
DOIs	https://doi.org/10.1103/physrevc.82.064309
Publication status	Published - 13-Dec-2010

Keywords

GA ISOTOPES
GA-69
DECAY

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Coulomb excitation of Ga-73
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Diriken, J., Stefanescu, I., Balabanski, D., Blasi, N., Blazhev, A., Bree, N., Cederkaell, J., Cocolios, T. E., Davinson, T., Eberth, J., Ekstrom, A., Fedorov, D. V., Fedosseev, V. N., Fraile, L. M., Franchoo, S., Georgiev, G., Gladnishki, K., Huyse, M., Ivanov, O. V., ... Wrzosek, K. (2010). Coulomb excitation of Ga-73. Physical Review C, 82(6), Article 064309. https://doi.org/10.1103/physrevc.82.064309

@article{5fbc460ff9fb4dbc9d372799296e5148,

title = "Coulomb excitation of Ga-73",

abstract = "The B(E2; I-i -> I-f) values for transitions in Ga-71(31)40 and Ga-73(31)42 were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of Ga-71,Ga-73 at the REX-ISOLDE on-line isotope mass separator facility. The emitted gamma rays were detected by the MINIBALL gamma-detector array, and B(E2; I-i -> I-f) values were obtained from the yields normalized to the known strength of the 2(+) -> 0(+) transition in the Sn-120 target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2(-) spin and parity for the ground state, the extracted results revealed evidence for a 1/2(-), 3/2(-) doublet near the ground state in Ga-73(31)42 differing by at most 0.8 keV in energy.",

keywords = "GA ISOTOPES, GA-69, DECAY",

author = "J. Diriken and I. Stefanescu and D. Balabanski and N. Blasi and A. Blazhev and N. Bree and J. Cederkaell and Cocolios, {T. E.} and T. Davinson and J. Eberth and A. Ekstrom and Fedorov, {D. V.} and Fedosseev, {V. N.} and Fraile, {L. M.} and S. Franchoo and G. Georgiev and K. Gladnishki and M. Huyse and Ivanov, {O. V.} and Ivanov, {V. S.} and J. Iwanicki and J. Jolie and T. Konstantinopoulos and Th. Kroell and R. Kruecken and U. Koester and A. Lagoyannis and {Lo Bianco}, G. and P. Maierbeck and Marsh, {B. A.} and P. Napiorkowski and N. Patronis and D. Pauwels and P. Reiter and M. Seliverstov and G. Sletten and {Van de Walle}, J. and {Van Duppen}, P. and D. Voulot and Walters, {W. B.} and N. Warr and F. Wenander and K. Wrzosek",

year = "2010",

month = dec,

day = "13",

doi = "10.1103/physrevc.82.064309",

language = "English",

volume = "82",

journal = "Physical Review C",

publisher = "AMER PHYSICAL SOC",

number = "6",

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Diriken, J, Stefanescu, I, Balabanski, D, Blasi, N, Blazhev, A, Bree, N, Cederkaell, J, Cocolios, TE, Davinson, T, Eberth, J, Ekstrom, A, Fedorov, DV, Fedosseev, VN, Fraile, LM, Franchoo, S, Georgiev, G, Gladnishki, K, Huyse, M, Ivanov, OV, Ivanov, VS, Iwanicki, J, Jolie, J, Konstantinopoulos, T, Kroell, T, Kruecken, R, Koester, U, Lagoyannis, A, Lo Bianco, G, Maierbeck, P, Marsh, BA, Napiorkowski, P, Patronis, N, Pauwels, D, Reiter, P, Seliverstov, M, Sletten, G, Van de Walle, J, Van Duppen, P, Voulot, D, Walters, WB, Warr, N, Wenander, F & Wrzosek, K 2010, 'Coulomb excitation of Ga-73', Physical Review C, vol. 82, no. 6, 064309. https://doi.org/10.1103/physrevc.82.064309

TY - JOUR

T1 - Coulomb excitation of Ga-73

AU - Diriken, J.

AU - Stefanescu, I.

AU - Balabanski, D.

AU - Blasi, N.

AU - Blazhev, A.

AU - Bree, N.

AU - Cederkaell, J.

AU - Cocolios, T. E.

AU - Davinson, T.

AU - Eberth, J.

AU - Ekstrom, A.

AU - Fedorov, D. V.

AU - Fedosseev, V. N.

AU - Fraile, L. M.

AU - Franchoo, S.

AU - Georgiev, G.

AU - Gladnishki, K.

AU - Huyse, M.

AU - Ivanov, O. V.

AU - Ivanov, V. S.

AU - Iwanicki, J.

AU - Jolie, J.

AU - Konstantinopoulos, T.

AU - Kroell, Th.

AU - Kruecken, R.

AU - Koester, U.

AU - Lagoyannis, A.

AU - Lo Bianco, G.

AU - Maierbeck, P.

AU - Marsh, B. A.

AU - Napiorkowski, P.

AU - Patronis, N.

AU - Pauwels, D.

AU - Reiter, P.

AU - Seliverstov, M.

AU - Sletten, G.

AU - Van de Walle, J.

AU - Van Duppen, P.

AU - Voulot, D.

AU - Walters, W. B.

AU - Warr, N.

AU - Wenander, F.

AU - Wrzosek, K.

PY - 2010/12/13

Y1 - 2010/12/13

N2 - The B(E2; I-i -> I-f) values for transitions in Ga-71(31)40 and Ga-73(31)42 were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of Ga-71,Ga-73 at the REX-ISOLDE on-line isotope mass separator facility. The emitted gamma rays were detected by the MINIBALL gamma-detector array, and B(E2; I-i -> I-f) values were obtained from the yields normalized to the known strength of the 2(+) -> 0(+) transition in the Sn-120 target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2(-) spin and parity for the ground state, the extracted results revealed evidence for a 1/2(-), 3/2(-) doublet near the ground state in Ga-73(31)42 differing by at most 0.8 keV in energy.

AB - The B(E2; I-i -> I-f) values for transitions in Ga-71(31)40 and Ga-73(31)42 were deduced from a Coulomb excitation experiment at the safe energy of 2.95 MeV/nucleon using post-accelerated beams of Ga-71,Ga-73 at the REX-ISOLDE on-line isotope mass separator facility. The emitted gamma rays were detected by the MINIBALL gamma-detector array, and B(E2; I-i -> I-f) values were obtained from the yields normalized to the known strength of the 2(+) -> 0(+) transition in the Sn-120 target. The comparison of these new results with the data of less neutron-rich gallium isotopes shows a shift of the E2 collectivity toward lower excitation energy when adding neutrons beyond N = 40. This supports conclusions from previous studies of the gallium isotopes, which indicated a structural change in this isotopic chain between N = 40 and 42. Combined with recent measurements from collinear laser spectroscopy showing a 1/2(-) spin and parity for the ground state, the extracted results revealed evidence for a 1/2(-), 3/2(-) doublet near the ground state in Ga-73(31)42 differing by at most 0.8 keV in energy.

KW - GA ISOTOPES

KW - GA-69

KW - DECAY

U2 - 10.1103/physrevc.82.064309

DO - 10.1103/physrevc.82.064309

M3 - Article

VL - 82

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064309

ER -