Proton-neutron structure of the N = 52 nucleus 92Zr

V. Werner; D. Belic; P. Von Brentano; C. Fransen; A. Gade; H. Von Garrel; J. Jolie; U. Kneissl; C. Kohstall; A. Linnemann; A. F. Lisetskiy; N. Pietralla; H. H. Pitz; M. Scheck; K. H. Speidel; F. Stedile; S. W. Yates

doi:10.1016/S0370-2693(02)02961-1

Proton-neutron structure of the N = 52 nucleus ⁹²Zr

V. Werner, D. Belic, P. Von Brentano, C. Fransen, A. Gade, H. Von Garrel, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, A. F. Lisetskiy, N. Pietralla, H. H. Pitz, M. Scheck, K. H. Speidel, F. Stedile, S. W. Yates

Chemistry

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

100 Scopus citations

Abstract

Following the successful identification of mixed-symmetric one- and two-phonon states in the N = 52 nuclei ⁹⁴Mo and ⁹⁶Ru, we have performed a photon scattering experiment on the N = 52 isotone ⁹²Zr. Experimental data and shell model calculations show that both, single particle and collective degrees of freedom are present in the low-lying levels of ⁹²Zr. The second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2⁺ state, while calculations and data indicate an almost pure neutron configuration for the 2₁⁺, state, in contradiction with the F-spin symmetric limit. Furthermore, two strong dipole excitations, which are candidates for the two-phonon quadrupole-octupole coupled E1 excitation and for the mixed-symmetric 1⁺ two-phonon state, were observed.

Original language	English
Pages (from-to)	140-146
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	550
Issue number	3-4
DOIs	https://doi.org/10.1016/S0370-2693(02)02961-1
State	Published - Dec 19 2002

Bibliographical note

Funding Information:
For discussions the authors thank R.F. Casten, F. Iachello, T. Otsuka and R. Schwengner and we thank H. Klein for the Rits-Tk interface. This work was supported by the Deutsche Forschungsgemeinschaft under contracts Br 799/11-1, Kn 154/30 and Pi 393/1-2.

Keywords

(γ, γ′)
A = 92
IBM
Mixed symmetry
NRF
Shell model
Zr

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(02)02961-1

Cite this

Werner, V., Belic, D., Von Brentano, P., Fransen, C., Gade, A., Von Garrel, H., Jolie, J., Kneissl, U., Kohstall, C., Linnemann, A., Lisetskiy, A. F., Pietralla, N., Pitz, H. H., Scheck, M., Speidel, K. H., Stedile, F., & Yates, S. W. (2002). Proton-neutron structure of the N = 52 nucleus ⁹²Zr. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 550(3-4), 140-146. https://doi.org/10.1016/S0370-2693(02)02961-1

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title = "Proton-neutron structure of the N = 52 nucleus 92Zr",

abstract = "Following the successful identification of mixed-symmetric one- and two-phonon states in the N = 52 nuclei 94Mo and 96Ru, we have performed a photon scattering experiment on the N = 52 isotone 92Zr. Experimental data and shell model calculations show that both, single particle and collective degrees of freedom are present in the low-lying levels of 92Zr. The second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2+ state, while calculations and data indicate an almost pure neutron configuration for the 21+, state, in contradiction with the F-spin symmetric limit. Furthermore, two strong dipole excitations, which are candidates for the two-phonon quadrupole-octupole coupled E1 excitation and for the mixed-symmetric 1+ two-phonon state, were observed.",

keywords = "(γ, γ′), A = 92, IBM, Mixed symmetry, NRF, Shell model, Zr",

author = "V. Werner and D. Belic and {Von Brentano}, P. and C. Fransen and A. Gade and {Von Garrel}, H. and J. Jolie and U. Kneissl and C. Kohstall and A. Linnemann and Lisetskiy, {A. F.} and N. Pietralla and Pitz, {H. H.} and M. Scheck and Speidel, {K. H.} and F. Stedile and Yates, {S. W.}",

note = "Funding Information: For discussions the authors thank R.F. Casten, F. Iachello, T. Otsuka and R. Schwengner and we thank H. Klein for the Rits-Tk interface. This work was supported by the Deutsche Forschungsgemeinschaft under contracts Br 799/11-1, Kn 154/30 and Pi 393/1-2.",

year = "2002",

month = dec,

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doi = "10.1016/S0370-2693(02)02961-1",

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Werner, V, Belic, D, Von Brentano, P, Fransen, C, Gade, A, Von Garrel, H, Jolie, J, Kneissl, U, Kohstall, C, Linnemann, A, Lisetskiy, AF, Pietralla, N, Pitz, HH, Scheck, M, Speidel, KH, Stedile, F & Yates, SW 2002, 'Proton-neutron structure of the N = 52 nucleus ⁹²Zr', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 550, no. 3-4, pp. 140-146. https://doi.org/10.1016/S0370-2693(02)02961-1

TY - JOUR

T1 - Proton-neutron structure of the N = 52 nucleus 92Zr

AU - Werner, V.

AU - Belic, D.

AU - Von Brentano, P.

AU - Fransen, C.

AU - Gade, A.

AU - Von Garrel, H.

AU - Jolie, J.

AU - Kneissl, U.

AU - Kohstall, C.

AU - Linnemann, A.

AU - Lisetskiy, A. F.

AU - Pietralla, N.

AU - Pitz, H. H.

AU - Scheck, M.

AU - Speidel, K. H.

AU - Stedile, F.

AU - Yates, S. W.

N1 - Funding Information: For discussions the authors thank R.F. Casten, F. Iachello, T. Otsuka and R. Schwengner and we thank H. Klein for the Rits-Tk interface. This work was supported by the Deutsche Forschungsgemeinschaft under contracts Br 799/11-1, Kn 154/30 and Pi 393/1-2.

PY - 2002/12/19

Y1 - 2002/12/19

N2 - Following the successful identification of mixed-symmetric one- and two-phonon states in the N = 52 nuclei 94Mo and 96Ru, we have performed a photon scattering experiment on the N = 52 isotone 92Zr. Experimental data and shell model calculations show that both, single particle and collective degrees of freedom are present in the low-lying levels of 92Zr. The second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2+ state, while calculations and data indicate an almost pure neutron configuration for the 21+, state, in contradiction with the F-spin symmetric limit. Furthermore, two strong dipole excitations, which are candidates for the two-phonon quadrupole-octupole coupled E1 excitation and for the mixed-symmetric 1+ two-phonon state, were observed.

AB - Following the successful identification of mixed-symmetric one- and two-phonon states in the N = 52 nuclei 94Mo and 96Ru, we have performed a photon scattering experiment on the N = 52 isotone 92Zr. Experimental data and shell model calculations show that both, single particle and collective degrees of freedom are present in the low-lying levels of 92Zr. The second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2+ state, while calculations and data indicate an almost pure neutron configuration for the 21+, state, in contradiction with the F-spin symmetric limit. Furthermore, two strong dipole excitations, which are candidates for the two-phonon quadrupole-octupole coupled E1 excitation and for the mixed-symmetric 1+ two-phonon state, were observed.

KW - (γ, γ′)

KW - A = 92

KW - IBM

KW - Mixed symmetry

KW - NRF

KW - Shell model

KW - Zr

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U2 - 10.1016/S0370-2693(02)02961-1

DO - 10.1016/S0370-2693(02)02961-1

M3 - Article

AN - SCOPUS:0037137545

SN - 0370-2693

VL - 550

SP - 140

EP - 146

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3-4

ER -