Shell model and octupole excitations in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow></mrow><mrow><mn>147</mn></mrow></msup></mrow><mi mathvariant="normal">Eu</mi></math></span>

Zs. Podolyák; P. G. Bizzeti; A. M. Bizzeti-Sona; A. Gadea; S. Lunardi; D. Bazzacco; G. de Angelis; M. De Poli; D. R. Napoli; C. M. Petrache; C. Rossi Alvarez; C. A. Ur; P. Kleinheinz; J. Blomqvist

doi:10.1103/PhysRevC.64.034302

Shell model and octupole excitations in $^{147} Eu$

Zs. Podolyák, P. G. Bizzeti, A. M. Bizzeti-Sona, A. Gadea, S. Lunardi, D. Bazzacco, G. de Angelis, M. De Poli, D. R. Napoli, C. M. Petrache, C. Rossi Alvarez, C. A. Ur, P. Kleinheinz, and J. Blomqvist

Phys. Rev. C 64, 034302 – Published 27 July 2001

Abstract

The structure of the $^{147} Eu$ nucleus has been studied via the $^{124} {S n (}^{28} Si, p 4 n)$ fusion-evaporation reaction at 125 MeV beam energy. The yrast level scheme has been extended up to 10 MeV and spin near 55/2. Up to the highest spins the levels are interpreted in terms of specific multinucleon excitations involving up to seven quasiparticles. Parameter free shell model calculations for three or five nucleons, or for three nucleons and an octupole phonon, are in good agreement with experiment for all the states observed here below 4.2 MeV, and also with the above-yrast levels known from earlier $(p, 2 n)$ experiments.

Received 15 March 2001

DOI:https://doi.org/10.1103/PhysRevC.64.034302

Authors & Affiliations

Zs. Podolyák^1,2, P. G. Bizzeti³, A. M. Bizzeti-Sona³, A. Gadea^2,5, S. Lunardi⁴, D. Bazzacco⁴, G. de Angelis², M. De Poli², D. R. Napoli², C. M. Petrache^4,*, C. Rossi Alvarez⁴, C. A. Ur^4,†, P. Kleinheinz^5,6, and J. Blomqvist⁷

¹Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
²INFN, Laboratori Nazionali di Legnaro, Legnaro, Italy
³Dipartimento di Fisica dell’Università and INFN, Sezione di Firenze, Firenze, Italy
⁴Dipartimento di Fisica dell’Università and INFN, Sezione di Padova, Padova, Italy
⁵Instituto de Física Corpuscular, Valencia, Spain
⁶Institut für Kernphysik, Forschungszentrum Jülich, Jülich, Germany
⁷Department of Physics Frescati, Royal Institute of Technology, Stockholm, Sweden

^*Permanent address: Dipartimento di Fisica dell’Università di Camerino, Camerino, Italy.
^†Permanent address: Institute of Physics and Nuclear Engineering, Bucharest, Romania.

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Vol. 64, Iss. 3 — September 2001

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