Shape transitions far from stability: the nucleus 58Cr

N. Marginean; S.M. Lenzi; A. Gadea; E. Farnea; S.J. Freeman; D.R. Napoli; D. Bazzacco; S. Beghini; B.R. Behera; P.G. Bizzeti; A. Bizzeti-Sona; D. Bucurescu; R. Chapman; L. Corradi; A.N. Deacon; G. de Angelis; F. Della Vedova; E. Fioretto; M. Ionescu-Bujor; A. Iordachescu; Th. Kröll; A. Latina; X. Liang; S. Lunardi; G. Montagnoli; R. Marginean; M. Nespolo; G. Pollarolo; C. Rusu; F. Scarlassara; J.F. Smith; K. Spohr; A.M. Stefanini; S. Szilner; M. Trotta; C.A. Ur; B.J. Varley; W. Zhimin

doi:10.1016/j.physletb.2005.12.047

Shape transitions far from stability: the nucleus 58Cr

N. Marginean, S.M. Lenzi, A. Gadea, E. Farnea, S.J. Freeman, D.R. Napoli, D. Bazzacco, S. Beghini, B.R. Behera, P.G. Bizzeti, A. Bizzeti-Sona, D. Bucurescu, R. Chapman, L. Corradi, A.N. Deacon, G. de Angelis, F. Della Vedova, E. Fioretto, M. Ionescu-Bujor, A. IordachescuTh. Kröll, A. Latina, X. Liang, S. Lunardi, G. Montagnoli, R. Marginean, M. Nespolo, G. Pollarolo, C. Rusu, F. Scarlassara, J.F. Smith, K. Spohr, A.M. Stefanini, S. Szilner, M. Trotta, C.A. Ur, B.J. Varley, W. Zhimin

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Abstract

Excited states up to Iπ=8+ in the neutron-rich nucleus 58Cr have been identified by using a new experimental setup composed of the large acceptance magnetic spectrometer PRISMA and the highly efficient γ-detector array CLARA. Interestingly, the excitation energy sequence of the ground-state band follows the one expected by the E(5) dynamical symmetry for a nucleus at the critical point of the shape phase transition from a spherical vibrator (U(5)) to a γ-soft rotor (O(6)). For the first time, in the same physical system, large scale shell-model calculations in the full fp shell are compared to the E(5) analytical model results and to the Interacting Boson Model. The theoretical results are in excellent agreement with the present data.

Original language	English
Pages (from-to)	696-700
Number of pages	5
Journal	Physics Letters B
Volume	633
Issue number	6
DOIs	https://doi.org/10.1016/j.physletb.2005.12.047
Publication status	Published - 23 Feb 2006

Keywords

High-spin spectroscopy
Multinucleon transfer reactions
Neutron-rich nuclei
IBM
Shell model

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10.1016/j.physletb.2005.12.047

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Marginean, N., Lenzi, S. M., Gadea, A., Farnea, E., Freeman, S. J., Napoli, D. R., Bazzacco, D., Beghini, S., Behera, B. R., Bizzeti, P. G., Bizzeti-Sona, A., Bucurescu, D., Chapman, R., Corradi, L., Deacon, A. N., de Angelis, G., Della Vedova, F., Fioretto, E., Ionescu-Bujor, M., ... Zhimin, W. (2006). Shape transitions far from stability: the nucleus 58Cr. Physics Letters B, 633(6), 696-700. https://doi.org/10.1016/j.physletb.2005.12.047

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title = "Shape transitions far from stability: the nucleus 58Cr",

abstract = "Excited states up to Iπ=8+ in the neutron-rich nucleus 58Cr have been identified by using a new experimental setup composed of the large acceptance magnetic spectrometer PRISMA and the highly efficient γ-detector array CLARA. Interestingly, the excitation energy sequence of the ground-state band follows the one expected by the E(5) dynamical symmetry for a nucleus at the critical point of the shape phase transition from a spherical vibrator (U(5)) to a γ-soft rotor (O(6)). For the first time, in the same physical system, large scale shell-model calculations in the full fp shell are compared to the E(5) analytical model results and to the Interacting Boson Model. The theoretical results are in excellent agreement with the present data.",

keywords = "High-spin spectroscopy, Multinucleon transfer reactions, Neutron-rich nuclei, IBM, Shell model",

author = "N. Marginean and S.M. Lenzi and A. Gadea and E. Farnea and S.J. Freeman and D.R. Napoli and D. Bazzacco and S. Beghini and B.R. Behera and P.G. Bizzeti and A. Bizzeti-Sona and D. Bucurescu and R. Chapman and L. Corradi and A.N. Deacon and {de Angelis}, G. and {Della Vedova}, F. and E. Fioretto and M. Ionescu-Bujor and A. Iordachescu and Th. Kr{\"o}ll and A. Latina and X. Liang and S. Lunardi and G. Montagnoli and R. Marginean and M. Nespolo and G. Pollarolo and C. Rusu and F. Scarlassara and J.F. Smith and K. Spohr and A.M. Stefanini and S. Szilner and M. Trotta and C.A. Ur and B.J. Varley and W. Zhimin",

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doi = "10.1016/j.physletb.2005.12.047",

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Marginean, N, Lenzi, SM, Gadea, A, Farnea, E, Freeman, SJ, Napoli, DR, Bazzacco, D, Beghini, S, Behera, BR, Bizzeti, PG, Bizzeti-Sona, A, Bucurescu, D, Chapman, R, Corradi, L, Deacon, AN, de Angelis, G, Della Vedova, F, Fioretto, E, Ionescu-Bujor, M, Iordachescu, A, Kröll, T, Latina, A, Liang, X, Lunardi, S, Montagnoli, G, Marginean, R, Nespolo, M, Pollarolo, G, Rusu, C, Scarlassara, F, Smith, JF, Spohr, K, Stefanini, AM, Szilner, S, Trotta, M, Ur, CA, Varley, BJ & Zhimin, W 2006, 'Shape transitions far from stability: the nucleus 58Cr', Physics Letters B, vol. 633, no. 6, pp. 696-700. https://doi.org/10.1016/j.physletb.2005.12.047

TY - JOUR

T1 - Shape transitions far from stability

T2 - the nucleus 58Cr

AU - Marginean, N.

AU - Lenzi, S.M.

AU - Gadea, A.

AU - Farnea, E.

AU - Freeman, S.J.

AU - Napoli, D.R.

AU - Bazzacco, D.

AU - Beghini, S.

AU - Behera, B.R.

AU - Bizzeti, P.G.

AU - Bizzeti-Sona, A.

AU - Bucurescu, D.

AU - Chapman, R.

AU - Corradi, L.

AU - Deacon, A.N.

AU - de Angelis, G.

AU - Della Vedova, F.

AU - Fioretto, E.

AU - Ionescu-Bujor, M.

AU - Iordachescu, A.

AU - Kröll, Th.

AU - Latina, A.

AU - Liang, X.

AU - Lunardi, S.

AU - Montagnoli, G.

AU - Marginean, R.

AU - Nespolo, M.

AU - Pollarolo, G.

AU - Rusu, C.

AU - Scarlassara, F.

AU - Smith, J.F.

AU - Spohr, K.

AU - Stefanini, A.M.

AU - Szilner, S.

AU - Trotta, M.

AU - Ur, C.A.

AU - Varley, B.J.

AU - Zhimin, W.

PY - 2006/2/23

Y1 - 2006/2/23

N2 - Excited states up to Iπ=8+ in the neutron-rich nucleus 58Cr have been identified by using a new experimental setup composed of the large acceptance magnetic spectrometer PRISMA and the highly efficient γ-detector array CLARA. Interestingly, the excitation energy sequence of the ground-state band follows the one expected by the E(5) dynamical symmetry for a nucleus at the critical point of the shape phase transition from a spherical vibrator (U(5)) to a γ-soft rotor (O(6)). For the first time, in the same physical system, large scale shell-model calculations in the full fp shell are compared to the E(5) analytical model results and to the Interacting Boson Model. The theoretical results are in excellent agreement with the present data.

AB - Excited states up to Iπ=8+ in the neutron-rich nucleus 58Cr have been identified by using a new experimental setup composed of the large acceptance magnetic spectrometer PRISMA and the highly efficient γ-detector array CLARA. Interestingly, the excitation energy sequence of the ground-state band follows the one expected by the E(5) dynamical symmetry for a nucleus at the critical point of the shape phase transition from a spherical vibrator (U(5)) to a γ-soft rotor (O(6)). For the first time, in the same physical system, large scale shell-model calculations in the full fp shell are compared to the E(5) analytical model results and to the Interacting Boson Model. The theoretical results are in excellent agreement with the present data.

KW - High-spin spectroscopy

KW - Multinucleon transfer reactions

KW - Neutron-rich nuclei

KW - IBM

KW - Shell model

U2 - 10.1016/j.physletb.2005.12.047

DO - 10.1016/j.physletb.2005.12.047

M3 - Article

SN - 0370-2693

VL - 633

SP - 696

EP - 700

JO - Physics Letters B

JF - Physics Letters B

IS - 6

ER -

Shape transitions far from stability: the nucleus 58Cr

Abstract

Keywords

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