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Article: In-beam γ-ray spectroscopy of Mg34,36,38: Merging the N=20 and N=28 shell quenching

TitleIn-beam γ-ray spectroscopy of Mg34,36,38: Merging the N=20 and N=28 shell quenching
Authors
Issue Date2013
Citation
Physical Review Letters, 2013, v. 111, n. 21 How to Cite?
AbstractNeutron-rich N=22, 24, 26 magnesium isotopes were studied via in-beam γ-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory following secondary fragmentation reactions on a carbon target at ≈200 MeV/nucleon. In the one- and two-proton removal channels from Al39 and Si40 beams, two distinct γ-ray transitions were observed in Mg38, while in the one-proton removal reaction from Al37 a new transition was observed in addition to the known 21+→0g.s.+ decay. From the experimental systematics and comparison to theoretical predictions it is concluded that the transitions belong to the 21+→0g.s.+ and 41+→21+ decays in Mg36 and Mg38, respectively. For Mg34, previously reported 21+ and 41+ level energies were remeasured. The deduced E(41+)/E(21+) ratios for Mg34,36,38 of 3.14(5), 3.07(5), and 3.07(5) are almost identical and suggest the emergence of a large area of deformation extending from the N=20 to the N=28 shell quenching. © 2013 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/199932
ISSN
2015 Impact Factor: 7.645
2015 SCImago Journal Rankings: 3.731
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDoornenbal, Pieter C.-
dc.contributor.authorScheit, Heiko-
dc.contributor.authorTakeuchi, Satoshi-
dc.contributor.authorAoi, Nori-
dc.contributor.authorLi, Kuoang-
dc.contributor.authorMatsushita, Masafumi-
dc.contributor.authorSteppenbeck, David-
dc.contributor.authorWang, He-
dc.contributor.authorBaba, Hidetada-
dc.contributor.authorCrawford, H. L.-
dc.contributor.authorHoffman, Calem R.-
dc.contributor.authorHughes, R. O.-
dc.contributor.authorIdeguchi, Eiji-
dc.contributor.authorKobayashi, Nobuyuki-
dc.contributor.authorKondo, Yosuke-
dc.contributor.authorLee, Jenny-
dc.contributor.authorMichimasa, Shin'ichiro-
dc.contributor.authorMotobayashi, Tohru-
dc.contributor.authorSakuraï, Hiroyoshi-
dc.contributor.authorTakechi, Maya-
dc.contributor.authorTogano, Yasuhiro-
dc.contributor.authorWinkler, Ryan-
dc.contributor.authorYoneda, Kenichiro-
dc.date.accessioned2014-07-26T23:10:55Z-
dc.date.available2014-07-26T23:10:55Z-
dc.date.issued2013-
dc.identifier.citationPhysical Review Letters, 2013, v. 111, n. 21-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/199932-
dc.description.abstractNeutron-rich N=22, 24, 26 magnesium isotopes were studied via in-beam γ-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory following secondary fragmentation reactions on a carbon target at ≈200 MeV/nucleon. In the one- and two-proton removal channels from Al39 and Si40 beams, two distinct γ-ray transitions were observed in Mg38, while in the one-proton removal reaction from Al37 a new transition was observed in addition to the known 21+→0g.s.+ decay. From the experimental systematics and comparison to theoretical predictions it is concluded that the transitions belong to the 21+→0g.s.+ and 41+→21+ decays in Mg36 and Mg38, respectively. For Mg34, previously reported 21+ and 41+ level energies were remeasured. The deduced E(41+)/E(21+) ratios for Mg34,36,38 of 3.14(5), 3.07(5), and 3.07(5) are almost identical and suggest the emergence of a large area of deformation extending from the N=20 to the N=28 shell quenching. © 2013 American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleIn-beam γ-ray spectroscopy of Mg34,36,38: Merging the N=20 and N=28 shell quenching-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.111.212502-
dc.identifier.pmid24313483-
dc.identifier.scopuseid_2-s2.0-84888329328-
dc.identifier.volume111-
dc.identifier.issue21-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000327245600006-

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