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**Harvard**

Hennig, A., Spieker, M., Werner, V., Ahn, T., Anagnostatou, V., Cooper, N., Derya, V., Elvers, M., Endres, J., Goddard, P., Heinz, A., Hughes, R., Ilie, G., Mineva, M., Petkov, P., Pickstone, S., Pietralla, N., Radeck, D., Ross, T., Savran, D. och Zilges, A. (2014) *Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones*.

** BibTeX **

@article{

Hennig2014,

author={Hennig, A. and Spieker, M. and Werner, V. and Ahn, T. and Anagnostatou, V. and Cooper, N.P. and Derya, V. and Elvers, M. and Endres, J. and Goddard, P.M. and Heinz, Andreas Martin and Hughes, R.O. and Ilie, G. and Mineva, M.N. and Petkov, P. and Pickstone, S.G. and Pietralla, N.A. and Radeck, D. and Ross, T.J. and Savran, D. and Zilges, A.},

title={Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones},

journal={Physical Review C - Nuclear Physics},

issn={0556-2813},

volume={90},

issue={5},

pages={Art. no. 051302},

abstract={Background: Excitations with mixed proton-neutron symmetry have been previously observed in the N=52 isotones. Besides the well-established quadrupole mixed-symmetry states (MSS), octupole and hexadecapole MSS have been recently proposed for the nuclei Zr92 and Mo94. Purpose: The heaviest stable N=52 isotone Ru96 was investigated to study the evolution of octupole and hexadecapole MSS with increasing proton number. Methods: Two inelastic proton-scattering experiments on Ru96 were performed to extract branching ratios, multipole mixing ratios, and level lifetimes. From the combined data, absolute transition strengths were calculated. Results: Strong M1 transitions between the lowest-lying 3- and 4+ states were observed, providing evidence for a one-phonon mixed-symmetry character of the 32(-) and 42+ states. Conclusions: sdg-IBM-2 calculations were performed for Ru96. The results are in excellent agreement with the experimental data, pointing out a one-phonon hexadecapole mixed-symmetry character of the 42+ state. The 31-||M1||32(-) matrix element is found to scale with the 2s+||M1||2ms+ matrix element.},

year={2014},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 208777

A1 Hennig, A.

A1 Spieker, M.

A1 Werner, V.

A1 Ahn, T.

A1 Anagnostatou, V.

A1 Cooper, N.P.

A1 Derya, V.

A1 Elvers, M.

A1 Endres, J.

A1 Goddard, P.M.

A1 Heinz, Andreas Martin

A1 Hughes, R.O.

A1 Ilie, G.

A1 Mineva, M.N.

A1 Petkov, P.

A1 Pickstone, S.G.

A1 Pietralla, N.A.

A1 Radeck, D.

A1 Ross, T.J.

A1 Savran, D.

A1 Zilges, A.

T1 Mixed-symmetry octupole and hexadecapole excitations in the N=52 isotones

YR 2014

JF Physical Review C - Nuclear Physics

SN 0556-2813

VO 90

IS 5

AB Background: Excitations with mixed proton-neutron symmetry have been previously observed in the N=52 isotones. Besides the well-established quadrupole mixed-symmetry states (MSS), octupole and hexadecapole MSS have been recently proposed for the nuclei Zr92 and Mo94. Purpose: The heaviest stable N=52 isotone Ru96 was investigated to study the evolution of octupole and hexadecapole MSS with increasing proton number. Methods: Two inelastic proton-scattering experiments on Ru96 were performed to extract branching ratios, multipole mixing ratios, and level lifetimes. From the combined data, absolute transition strengths were calculated. Results: Strong M1 transitions between the lowest-lying 3- and 4+ states were observed, providing evidence for a one-phonon mixed-symmetry character of the 32(-) and 42+ states. Conclusions: sdg-IBM-2 calculations were performed for Ru96. The results are in excellent agreement with the experimental data, pointing out a one-phonon hexadecapole mixed-symmetry character of the 42+ state. The 31-||M1||32(-) matrix element is found to scale with the 2s+||M1||2ms+ matrix element.

LA eng

DO 10.1103/PhysRevC.90.051302

LK http://dx.doi.org/10.1103/PhysRevC.90.051302

LK http://publications.lib.chalmers.se/records/fulltext/208777/local_208777.pdf

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