Single-neutron orbits near 78Ni: Spectroscopy of the N=49 isotope 79Zn

R. Orlandi; D. Mücher; R. Raabe; A. Jungclaus; S. D. Pain; V. Bildstein; R. Chapman; G. de Angelis; J. G. Johansen; P. Van Duppen; A. N. Andreyev; S. Bottoni; T. E. Cocolios; H. De Witte; J. Diriken; J. Elseviers; F. Flavigny; L. P. Gaffney; R. Gernhäuser; A. Gottardo; M. Huyse; A. Illana; J. Konki; T. Kröll; R. Krücken; J. F.W. Lane; V. Liberati; B. Marsh; K. Nowak; F. Nowacki; J. Pakarinen; E. Rapisarda; F. Recchia; P. Reiter; T. Roger; E. Sahin; M. Seidlitz; K. Sieja; J. F. Smith; J. J. Valiente Dobón; M. von Schmid; D. Voulot; N. Warr; F. K. Wenander; K. Wimmer

doi:10.1016/j.physletb.2014.12.006

Single-neutron orbits near ⁷⁸Ni: Spectroscopy of the N=49 isotope ⁷⁹Zn

R. Orlandi, D. Mücher, R. Raabe, A. Jungclaus, S. D. Pain, V. Bildstein, R. Chapman, G. de Angelis, J. G. Johansen, P. Van Duppen, A. N. Andreyev, S. Bottoni, T. E. Cocolios, H. De Witte, J. Diriken, J. Elseviers, F. Flavigny, L. P. Gaffney, R. Gernhäuser, A. GottardoM. Huyse, A. Illana, J. Konki, T. Kröll, R. Krücken, J. F.W. Lane, V. Liberati, B. Marsh, K. Nowak, F. Nowacki, J. Pakarinen, E. Rapisarda, F. Recchia, P. Reiter, T. Roger, E. Sahin, M. Seidlitz, K. Sieja, J. F. Smith, J. J. Valiente Dobón, M. von Schmid, D. Voulot, N. Warr, F. K. Wenander, K. Wimmer

Nuclear Structure and Nuclear Astrophysi

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

28 Scopus citations

Abstract

Single-neutron states in the Z=30, N=49 isotope ⁷⁹Zn have been populated using the ⁷⁸Zn(d, p)⁷⁹Zn transfer reaction at REX-ISOLDE, CERN. The experimental setup allowed the combined detection of protons ejected in the reaction, and of γ rays emitted by ⁷⁹Zn. The analysis reveals that the lowest excited states populated in the reaction lie at approximately 1 MeV of excitation, and involve neutron orbits above the N=50 shell gap. From the analysis of γ-ray data and of proton angular distributions, characteristic of the amount of angular momentum transferred, a 5/2⁺ configuration was assigned to a state at 983 keV. Comparison with large-scale-shell-model calculations supports a robust neutron N=50 shell-closure for ⁷⁸Ni. These data constitute an important step towards the understanding of the magicity of ⁷⁸Ni and of the structure of nuclei in the region.

Original language	English
Pages (from-to)	298-302
Number of pages	5
Journal	Physics Letters B
Volume	740
DOIs	https://doi.org/10.1016/j.physletb.2014.12.006
State	Published - Jan 5 2015

Funding

This work was supported by the European Commission through the Marie Curie Actions Contracts Nos. PIEFGA-2011-30096 (R.O.) and PIEFGA-2008-219175 (J.P.), by the Spanish Ministerio de Ciencia e Innovación under contracts FPA2009-13377-C02 and FPA2011-29854-C04 , by the Spanish MEC Consolider – Ingenio 2010 , Project No. CDS2007-00042 (CPAN), by FWO-Vlaanderen (Belgium) , by GOA/2010/010 ( BOF KU Leuven ), by the Interuniversity Attraction Poles Programme initiated by the Belgian Science Policy Office (BriX network P7/12 ), by the European Union Seventh Framework Programme through ENSAR, contract no. RII3-CT-2010-262010 , and by the German BMBF under contracts 05P09PKCI5 , 05P12PKFNE , 05P12RDCIA and 06DA9036I . R.O., R.C., J.F.W.L., V.L. and J.F.S. also acknowledge support from STFC , Grant Nos. PP/F000944/1 , ST/F007590/1 , and ST/J000183/2 . The authors thank A.M. Moro for valuable discussions.

Keywords

N=50 shell closure
Nuclear structure
Transfer reactions
γ-Ray transitions

Access to Document

10.1016/j.physletb.2014.12.006

Cite this

Orlandi, R., Mücher, D., Raabe, R., Jungclaus, A., Pain, S. D., Bildstein, V., Chapman, R., de Angelis, G., Johansen, J. G., Van Duppen, P., Andreyev, A. N., Bottoni, S., Cocolios, T. E., De Witte, H., Diriken, J., Elseviers, J., Flavigny, F., Gaffney, L. P., Gernhäuser, R., ... Wimmer, K. (2015). Single-neutron orbits near ⁷⁸Ni: Spectroscopy of the N=49 isotope ⁷⁹Zn. Physics Letters B, 740, 298-302. https://doi.org/10.1016/j.physletb.2014.12.006

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title = "Single-neutron orbits near 78Ni: Spectroscopy of the N=49 isotope 79Zn",

abstract = "Single-neutron states in the Z=30, N=49 isotope 79Zn have been populated using the 78Zn(d, p)79Zn transfer reaction at REX-ISOLDE, CERN. The experimental setup allowed the combined detection of protons ejected in the reaction, and of γ rays emitted by 79Zn. The analysis reveals that the lowest excited states populated in the reaction lie at approximately 1 MeV of excitation, and involve neutron orbits above the N=50 shell gap. From the analysis of γ-ray data and of proton angular distributions, characteristic of the amount of angular momentum transferred, a 5/2+ configuration was assigned to a state at 983 keV. Comparison with large-scale-shell-model calculations supports a robust neutron N=50 shell-closure for 78Ni. These data constitute an important step towards the understanding of the magicity of 78Ni and of the structure of nuclei in the region.",

keywords = "N=50 shell closure, Nuclear structure, Transfer reactions, γ-Ray transitions",

author = "R. Orlandi and D. M{\"u}cher and R. Raabe and A. Jungclaus and Pain, {S. D.} and V. Bildstein and R. Chapman and {de Angelis}, G. and Johansen, {J. G.} and {Van Duppen}, P. and Andreyev, {A. N.} and S. Bottoni and Cocolios, {T. E.} and {De Witte}, H. and J. Diriken and J. Elseviers and F. Flavigny and Gaffney, {L. P.} and R. Gernh{\"a}user and A. Gottardo and M. Huyse and A. Illana and J. Konki and T. Kr{\"o}ll and R. Kr{\"u}cken and Lane, {J. F.W.} and V. Liberati and B. Marsh and K. Nowak and F. Nowacki and J. Pakarinen and E. Rapisarda and F. Recchia and P. Reiter and T. Roger and E. Sahin and M. Seidlitz and K. Sieja and Smith, {J. F.} and {Valiente Dob{\'o}n}, {J. J.} and {von Schmid}, M. and D. Voulot and N. Warr and Wenander, {F. K.} and K. Wimmer",

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year = "2015",

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Orlandi, R, Mücher, D, Raabe, R, Jungclaus, A, Pain, SD, Bildstein, V, Chapman, R, de Angelis, G, Johansen, JG, Van Duppen, P, Andreyev, AN, Bottoni, S, Cocolios, TE, De Witte, H, Diriken, J, Elseviers, J, Flavigny, F, Gaffney, LP, Gernhäuser, R, Gottardo, A, Huyse, M, Illana, A, Konki, J, Kröll, T, Krücken, R, Lane, JFW, Liberati, V, Marsh, B, Nowak, K, Nowacki, F, Pakarinen, J, Rapisarda, E, Recchia, F, Reiter, P, Roger, T, Sahin, E, Seidlitz, M, Sieja, K, Smith, JF, Valiente Dobón, JJ, von Schmid, M, Voulot, D, Warr, N, Wenander, FK & Wimmer, K 2015, 'Single-neutron orbits near ⁷⁸Ni: Spectroscopy of the N=49 isotope ⁷⁹Zn', Physics Letters B, vol. 740, pp. 298-302. https://doi.org/10.1016/j.physletb.2014.12.006

TY - JOUR

T1 - Single-neutron orbits near 78Ni

T2 - Spectroscopy of the N=49 isotope 79Zn

AU - Orlandi, R.

AU - Mücher, D.

AU - Raabe, R.

AU - Jungclaus, A.

AU - Pain, S. D.

AU - Bildstein, V.

AU - Chapman, R.

AU - de Angelis, G.

AU - Johansen, J. G.

AU - Van Duppen, P.

AU - Andreyev, A. N.

AU - Bottoni, S.

AU - Cocolios, T. E.

AU - De Witte, H.

AU - Diriken, J.

AU - Elseviers, J.

AU - Flavigny, F.

AU - Gaffney, L. P.

AU - Gernhäuser, R.

AU - Gottardo, A.

AU - Huyse, M.

AU - Illana, A.

AU - Konki, J.

AU - Kröll, T.

AU - Krücken, R.

AU - Lane, J. F.W.

AU - Liberati, V.

AU - Marsh, B.

AU - Nowak, K.

AU - Nowacki, F.

AU - Pakarinen, J.

AU - Rapisarda, E.

AU - Recchia, F.

AU - Reiter, P.

AU - Roger, T.

AU - Sahin, E.

AU - Seidlitz, M.

AU - Sieja, K.

AU - Smith, J. F.

AU - Valiente Dobón, J. J.

AU - von Schmid, M.

AU - Voulot, D.

AU - Warr, N.

AU - Wenander, F. K.

AU - Wimmer, K.

PY - 2015/1/5

Y1 - 2015/1/5

N2 - Single-neutron states in the Z=30, N=49 isotope 79Zn have been populated using the 78Zn(d, p)79Zn transfer reaction at REX-ISOLDE, CERN. The experimental setup allowed the combined detection of protons ejected in the reaction, and of γ rays emitted by 79Zn. The analysis reveals that the lowest excited states populated in the reaction lie at approximately 1 MeV of excitation, and involve neutron orbits above the N=50 shell gap. From the analysis of γ-ray data and of proton angular distributions, characteristic of the amount of angular momentum transferred, a 5/2+ configuration was assigned to a state at 983 keV. Comparison with large-scale-shell-model calculations supports a robust neutron N=50 shell-closure for 78Ni. These data constitute an important step towards the understanding of the magicity of 78Ni and of the structure of nuclei in the region.

AB - Single-neutron states in the Z=30, N=49 isotope 79Zn have been populated using the 78Zn(d, p)79Zn transfer reaction at REX-ISOLDE, CERN. The experimental setup allowed the combined detection of protons ejected in the reaction, and of γ rays emitted by 79Zn. The analysis reveals that the lowest excited states populated in the reaction lie at approximately 1 MeV of excitation, and involve neutron orbits above the N=50 shell gap. From the analysis of γ-ray data and of proton angular distributions, characteristic of the amount of angular momentum transferred, a 5/2+ configuration was assigned to a state at 983 keV. Comparison with large-scale-shell-model calculations supports a robust neutron N=50 shell-closure for 78Ni. These data constitute an important step towards the understanding of the magicity of 78Ni and of the structure of nuclei in the region.

KW - N=50 shell closure

KW - Nuclear structure

KW - Transfer reactions

KW - γ-Ray transitions

UR - http://www.scopus.com/inward/record.url?scp=84921512779&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2014.12.006

DO - 10.1016/j.physletb.2014.12.006

M3 - Article

AN - SCOPUS:84921512779

SN - 0370-2693

VL - 740

SP - 298

EP - 302

JO - Physics Letters B

JF - Physics Letters B

ER -