In-beam spectroscopic studies of $^{44}$S nucleus

L. Caceres; D. Sohler; S. Grévy; O. Sorlin; Zs. Dombradi; B. Bastin; N. L. Achouri; J. C. Angélique; F. Azaiez; D. Baiborodin; R. Borcea; C. Bourgeois; A. Buta; A. Bürger; R. Chapman; J. C. Dalouzy; Z. Dlouhy; A. Drouard; Z. Elekes; S. Franchoo; L. Gaudefroy; S. Iacob; B. Laurent; M. Lazar; X. Liang; E. Liénard; J. Mrazek; L. Nalpas; F. Negoita; F. Nowacki; N. A. Orr; Y. Penionzhkevich; Zs. Podolyak; F. Pougheon; A. Poves; P. Roussel-Chomaz; M. G. Saint-Laurent; M. Stanoiu; I. Stefan

doi:10.1103/physrevc.85.024311

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arXiv · 1201.1366

In-beam spectroscopic studies of $^{44}$S nucleus

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Abstract

The structure of the $^{44}$S nucleus has been studied at GANIL through the one proton knock-out reaction from a $^{45}$Cl secondary beam at 42 A$\cdot$MeV. The $\gamma$ rays following the de-excitation of $^{44}$S were detected in flight using the 70 BaF${_2}$ detectors of the Ch\^{a}teau de Cristal array. An exhaustive $\gamma\gamma$-coincidence analysis allowed an unambiguous construction of the level scheme up to an excitation energy of 3301 keV. The existence of the spherical 2$^+_2$ state is confirmed and three new $\gamma$-ray transitions connecting the prolate deformed 2$^+_1$ level were observed. Comparison of the experimental results to shell model calculations further supports a prolate and spherical shape coexistence with a large mixing of states built on the ground state band in $^{44}$S.

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L. Caceres, D. Sohler, S. Grévy, O. Sorlin, Zs. Dombradi, B. Bastin, N. L. Achouri, J. C. Angélique, F. Azaiez, D. Baiborodin, R. Borcea, C. Bourgeois, A. Buta, A. Bürger, R. Chapman, J. C. Dalouzy, Z. Dlouhy, A. Drouard, Z. Elekes, S. Franchoo, L. Gaudefroy, S. Iacob, B. Laurent, M. Lazar, X. Liang, E. Liénard, J. Mrazek, L. Nalpas, F. Negoita, F. Nowacki, N. A. Orr, Y. Penionzhkevich, Zs. Podolyak, F. Pougheon, A. Poves, P. Roussel-Chomaz, M. G. Saint-Laurent, M. Stanoiu, I. Stefan. 2012-01-06. In-beam spectroscopic studies of $^{44}$S nucleus. https://doi.org/10.1103/physrevc.85.024311

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