Collapse of the N=28 shell closure in $^{42}$Si

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dc.creatorBastin, B.
dc.creatorGrévy, S.
dc.creatorSohler, D.
dc.creatorSorlin, O.
dc.creatorDombrádi, Zs.
dc.creatorAchouri, N. L.
dc.creatorAngélique, J. C.
dc.creatorAzaiez, F.
dc.creatorBaiborodin, D.
dc.creatorBorcea, R.
dc.creatorBourgeois, C.
dc.creatorButa, A.
dc.creatorBürger, A.
dc.creatorChapman, R.
dc.creatorDalouzy, J. C.
dc.creatorDlouhy, Z.
dc.creatorDrouard, A.
dc.creatorElekes, Z.
dc.creatorFranchoo, S.
dc.creatorIacob, S.
dc.creatorLaurent, B.
dc.creatorLazar, M.
dc.creatorLiang, X.
dc.creatorLiénard, E.
dc.creatorMrazek, J.
dc.creatorNalpas, L.
dc.creatorNegoita, F.
dc.creatorOrr, N. A.
dc.creatorPenionzhkevich, Y.
dc.creatorPodolyák, Zs.
dc.creatorPougheon, F.
dc.creatorRoussel-Chomaz, P.
dc.creatorSaint-Laurent, M. G.
dc.creatorStanoiu, M.
dc.creatorStefan, I.
dc.creatorNowacki, F.
dc.creatorPoves, A.
dc.date2007-05-31
dc.date.accessioned2026-07-07T10:35:59Z
dc.date.available2026-07-07T10:35:59Z
dc.descriptionThe energies of the excited states in very neutron-rich $^{42}$Si and $^{41,43}$P have been measured using in-beam $γ$-ray spectroscopy from the fragmentation of secondary beams of $^{42,44}$S at 39 A.MeV. The low 2$^+$ energy of $^{42}$Si, 770(19) keV, together with the level schemes of $^{41,43}$P provide 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 $^{42}$Si is best described as a well deformed oblate rotor.
dc.description4 pages, 3 figures, accepted for publication in Phys. Rev. lett
dc.identifierhttps://arxiv.org/abs/0705.4526
dc.identifierhttp://arxiv.org/abs/0705.4526
dc.identifierPhys.Rev.Lett.99:022503,2007
dc.identifierdoi:10.1103/PhysRevLett.99.022503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179907
dc.subjectNuclear Experiment
dc.titleCollapse of the N=28 shell closure in $^{42}$Si
dc.typetext

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