Year: 2007
Type: article
Abstract: The energies of the excited states in very neutron-rich $^{42}\mathrm{S}\mathrm{i}$ and $^{41,43}\mathrm{P}$ have been measured using in-beam $\ensuremath{\gamma}$-ray spectroscopy from the fragmentation of secondary beams of $^{42,44}\mathrm{S}$ at $39A\text{ }\text{ }\mathrm{MeV}$. The low ${2}^{+}$ energy of $^{42}\mathrm{S}\mathrm{i}$, 770(19) keV, together with the level schemes of $^{41,43}\mathrm{P}$, provides evidence for the disappearance of the $Z=14$ and $N=28$ spherical shell closures, which is ascribed mainly to the action of proton-neutron tensor forces. New shell model calculations indicate that $^{42}\mathrm{S}\mathrm{i}$ is best described as a well-deformed oblate rotor.
Source: Physical Review Letters
Authors: B. Bastin, S. Grévy, D. Sohler, O. Sorlin, Zs. Dombrádi, 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, S. Iacob, B. Laurent, M. Lazar, X. Liang, E. Liénard, J. Mrazek, L. Nalpas, F. Negoita, N. A. Orr, Y. Penionzhkevich, Zs. Podolyák, F. Pougheon, P. Roussel-Chomaz, M. G. Saint-Laurent, M. Stanoiu, I. Stefan, F. Nowacki, A. Poves
Institutions: Laboratoire de Physique Corpusculaire de Caen, Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut National de Physique Nucléaire et de Physique des Particules, Grand Accélérateur National d'Ions Lourds, HUN-REN Institute for Nuclear Research, Czech Academy of Sciences, Nuclear Physics Institute, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Institutul de Fizică Atomică, University of Bonn, CEA Paris-Saclay, Joint Institute for Nuclear Research, University of Surrey
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: Bundesministerium für Bildung und Forschung, Ministerio de Economía y Competitividad, Hungarian Scientific Research Fund, Centre National de la Recherche Scientifique, Engineering and Physical Sciences Research Council, Science and Technology Facilities Council, Institut National de Physique Nucléaire et de Physique des Particules
OpenAlex ID: W2005599087