Lifetime measurements in Nb-93 from photon and inelastic neutron scattering

J.N. Orce; C. Fransen; A. Linnemann; C.J. Mckay; S. R. Lesher; N. Pietralla; V. Werner; G. Friessner; C. Kohstall; D. Muecher; H.H. Pitz; M. Scheck; C. Scholl; F. Stedile; N. Warr; S. Walter; P. von Brentano; U. Kneissl; M.T. McEllistrem; S.W. Yates

doi:10.1103/PhysRevC.75.014303

Lifetime measurements in Nb-93 from photon and inelastic neutron scattering

J.N. Orce, C. Fransen, A. Linnemann, C.J. Mckay, S. R. Lesher, N. Pietralla, V. Werner, G. Friessner, C. Kohstall, D. Muecher, H.H. Pitz, M. Scheck, C. Scholl, F. Stedile, N. Warr, S. Walter, P. von Brentano, U. Kneissl, M.T. McEllistrem, S.W. Yates

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Abstract

The low-spin structure of 93Nb has been studied using the 93Nb(γ,γ′), 93Nb(n,n′γ) and 94Zr(p,2nγγ)93Nb reactions. Lifetimes were determined from both 93Nb(γ,γ′) and 93Nb(n,n′γ) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the 94Zr(p,2nγγ)93Nb angular correlation experiment. From M1and E2 strengths,the Jπ=9/2+ and 7/2+ states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the π1g9/2⊗(2+1,MS,92Zr) configuration. The large B(M1)values determined in93Nb cannot be explained within the weak coupling limit of the interacting boson fermion model.

Original language	English
Article number	014303
Journal	Physical Review C
Volume	75
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.75.014303
Publication status	Published - Jan 2007
Externally published	Yes

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Orce, J. N., Fransen, C., Linnemann, A., Mckay, C. J., Lesher, S. R., Pietralla, N., Werner, V., Friessner, G., Kohstall, C., Muecher, D., Pitz, H. H., Scheck, M., Scholl, C., Stedile, F., Warr, N., Walter, S., von Brentano, P., Kneissl, U., McEllistrem, M. T., & Yates, S. W. (2007). Lifetime measurements in Nb-93 from photon and inelastic neutron scattering. Physical Review C, 75(1), Article 014303. https://doi.org/10.1103/PhysRevC.75.014303

@article{8091eab240574304a5f4cd2995ab72e8,

title = "Lifetime measurements in Nb-93 from photon and inelastic neutron scattering",

abstract = "The low-spin structure of 93Nb has been studied using the 93Nb(γ,γ′), 93Nb(n,n′γ) and 94Zr(p,2nγγ)93Nb reactions. Lifetimes were determined from both 93Nb(γ,γ′) and 93Nb(n,n′γ) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the 94Zr(p,2nγγ)93Nb angular correlation experiment. From M1and E2 strengths,the Jπ=9/2+ and 7/2+ states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the π1g9/2⊗(2+1,MS,92Zr) configuration. The large B(M1)values determined in93Nb cannot be explained within the weak coupling limit of the interacting boson fermion model.",

author = "J.N. Orce and C. Fransen and A. Linnemann and C.J. Mckay and Lesher, {S. R.} and N. Pietralla and V. Werner and G. Friessner and C. Kohstall and D. Muecher and H.H. Pitz and M. Scheck and C. Scholl and F. Stedile and N. Warr and S. Walter and {von Brentano}, P. and U. Kneissl and M.T. McEllistrem and S.W. Yates",

year = "2007",

month = jan,

doi = "10.1103/PhysRevC.75.014303",

language = "English",

volume = "75",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "1",

}

Orce, JN, Fransen, C, Linnemann, A, Mckay, CJ, Lesher, SR, Pietralla, N, Werner, V, Friessner, G, Kohstall, C, Muecher, D, Pitz, HH, Scheck, M, Scholl, C, Stedile, F, Warr, N, Walter, S, von Brentano, P, Kneissl, U, McEllistrem, MT & Yates, SW 2007, 'Lifetime measurements in Nb-93 from photon and inelastic neutron scattering', Physical Review C, vol. 75, no. 1, 014303. https://doi.org/10.1103/PhysRevC.75.014303

TY - JOUR

T1 - Lifetime measurements in Nb-93 from photon and inelastic neutron scattering

AU - Orce, J.N.

AU - Fransen, C.

AU - Linnemann, A.

AU - Mckay, C.J.

AU - Lesher, S. R.

AU - Pietralla, N.

AU - Werner, V.

AU - Friessner, G.

AU - Kohstall, C.

AU - Muecher, D.

AU - Pitz, H.H.

AU - Scheck, M.

AU - Scholl, C.

AU - Stedile, F.

AU - Warr, N.

AU - Walter, S.

AU - von Brentano, P.

AU - Kneissl, U.

AU - McEllistrem, M.T.

AU - Yates, S.W.

PY - 2007/1

Y1 - 2007/1

N2 - The low-spin structure of 93Nb has been studied using the 93Nb(γ,γ′), 93Nb(n,n′γ) and 94Zr(p,2nγγ)93Nb reactions. Lifetimes were determined from both 93Nb(γ,γ′) and 93Nb(n,n′γ) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the 94Zr(p,2nγγ)93Nb angular correlation experiment. From M1and E2 strengths,the Jπ=9/2+ and 7/2+ states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the π1g9/2⊗(2+1,MS,92Zr) configuration. The large B(M1)values determined in93Nb cannot be explained within the weak coupling limit of the interacting boson fermion model.

AB - The low-spin structure of 93Nb has been studied using the 93Nb(γ,γ′), 93Nb(n,n′γ) and 94Zr(p,2nγγ)93Nb reactions. Lifetimes were determined from both 93Nb(γ,γ′) and 93Nb(n,n′γ) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the 94Zr(p,2nγγ)93Nb angular correlation experiment. From M1and E2 strengths,the Jπ=9/2+ and 7/2+ states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the π1g9/2⊗(2+1,MS,92Zr) configuration. The large B(M1)values determined in93Nb cannot be explained within the weak coupling limit of the interacting boson fermion model.

U2 - 10.1103/PhysRevC.75.014303

DO - 10.1103/PhysRevC.75.014303

M3 - Article

SN - 2469-9985

VL - 75

JO - Physical Review C

JF - Physical Review C

IS - 1

M1 - 014303

ER -

Lifetime measurements in Nb-93 from photon and inelastic neutron scattering

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