Shell structure at N=28 near the dripline: spectroscopy of $^{42}$Si, $^{43}$P and $^{44}$S

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dc.creatorFridmann, J.
dc.creatorWiedenhoever, I.
dc.creatorGade, A.
dc.creatorBaby, L. T.
dc.creatorBazin, D.
dc.creatorBrown, B. A.
dc.creatorCampbell, C. M.
dc.creatorCook, J. M.
dc.creatorCottle, P. D.
dc.creatorDiffenderfer, E.
dc.creatorDinca, D. -C.
dc.creatorGlasmacher, T.
dc.creatorHansen, P. G.
dc.creatorKemper, K. W.
dc.creatorLecouey, J. L.
dc.creatorMueller, W. F.
dc.creatorRodriguez-Vieitez, E.
dc.creatorTerry, J. R.
dc.creatorTostevin, J. A.
dc.creatorYoneda, K.
dc.creatorZwahlen, H.
dc.date2006-08-14
dc.date.accessioned2026-07-07T07:25:35Z
dc.date.available2026-07-07T07:25:35Z
dc.descriptionMeasurements of the N=28 isotones 42Si, 43P and 44S using one- and two-proton knockout reactions from the radioactive beam nuclei 44S and 46Ar are reported. The knockout reaction cross sections for populating 42Si and 43P and a 184 keV gamma-ray observed in 43P establish that the d_{3/2} and s_{1/2} proton orbits are nearly degenerate in these nuclei and that there is a substantial Z=14 subshell closure separating these two orbits from the d_{5/2} orbit. The increase in the inclusive two-proton knockout cross section from 42Si to 44S demonstrates the importance of the availability of valence protons for determining the cross section. New calculations of the two-proton knockout reactions that include diffractive effects are presented. In addition, it is proposed that a search for the d_{5/2} proton strength in 43P via a higher statistics one-proton knockout experiment could help determine the size of the Z=14 closure.
dc.descriptionPhys. Rev. C, in press
dc.identifierhttps://arxiv.org/abs/nucl-ex/0608023
dc.identifierhttp://arxiv.org/abs/nucl-ex/0608023
dc.identifierPhys. Rev. C 74, 034313 (2006)
dc.identifierdoi:10.1103/PhysRevC.74.034313
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/116768
dc.subjectNuclear Experiment
dc.titleShell structure at N=28 near the dripline: spectroscopy of $^{42}$Si, $^{43}$P and $^{44}$S
dc.typetext

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