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Article: Halo Structure of the Neutron-Dripline Nucleus 19B

TitleHalo Structure of the Neutron-Dripline Nucleus 19B
Authors
Cook, KJNakamura, TKondo, YOgata, KOgata, KSaito, ATAchouri, NLAumann, TBaba, HDelaunay, FDeshayes, QDoornenbal, PFukuda, NGibelin, JHwang, JWInabe, NIsobe, TKameda, DKanno, DKim, SKobayashi, NKobayashi, TKubo, TLeblond, SLee, JMarqués, FMMinakata, RMotobayashi, TMuto, KMurakami, TMurai, DNakashima, TNakatsuka, NNavin, ANishi, SOgoshi, SOrr, NAOtsu, HSato, HSatou, YShimizu, YSuzuki, HTakahashi, KTakeda, HTakeuchi, STanaka, RTogano, YTsubota, JTuff, AGVandebrouck, MYoneda, K
Issue Date2020
PublisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/
Citation
Physical Review Letters, 2020, v. 124 n. 21, article no. 212503 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevLett.124.212503
AbstractThe heaviest bound isotope of boron B19 has been investigated using exclusive measurements of its Coulomb dissociation, into B17 and two neutrons, in collisions with Pb at 220 MeV/nucleon. Enhanced electric dipole (E1) strength is observed just above the two-neutron decay threshold with an integrated E1 strength of B(E1)=1.64±0.06(stat)±0.12(sys) e2 fm2 for relative energies below 6 MeV. This feature, known as a soft E1 excitation, provides the first firm evidence that B19 has a prominent two-neutron halo. Three-body calculations that reproduce the energy spectrum indicate that the valence neutrons have a significant s-wave configuration and exhibit a dineutronlike correlation.
Persistent Identifierhttp://hdl.handle.net/10722/286306
ISSN
0031-9007
2021 Impact Factor: 9.185
2020 SCImago Journal Rankings: 3.688
ISI Accession Number ID
WOS:000535679100016

 

DC FieldValueLanguage
dc.contributor.authorCook, KJ-
dc.contributor.authorNakamura, T-
dc.contributor.authorKondo, Y-
dc.contributor.authorOgata, K-
dc.contributor.authorOgata, K-
dc.contributor.authorSaito, AT-
dc.contributor.authorAchouri, NL-
dc.contributor.authorAumann, T-
dc.contributor.authorBaba, H-
dc.contributor.authorDelaunay, F-
dc.contributor.authorDeshayes, Q-
dc.contributor.authorDoornenbal, P-
dc.contributor.authorFukuda, N-
dc.contributor.authorGibelin, J-
dc.contributor.authorHwang, JW-
dc.contributor.authorInabe, N-
dc.contributor.authorIsobe, T-
dc.contributor.authorKameda, D-
dc.contributor.authorKanno, D-
dc.contributor.authorKim, S-
dc.contributor.authorKobayashi, N-
dc.contributor.authorKobayashi, T-
dc.contributor.authorKubo, T-
dc.contributor.authorLeblond, S-
dc.contributor.authorLee, J-
dc.contributor.authorMarqués, FM-
dc.contributor.authorMinakata, R-
dc.contributor.authorMotobayashi, T-
dc.contributor.authorMuto, K-
dc.contributor.authorMurakami, T-
dc.contributor.authorMurai, D-
dc.contributor.authorNakashima, T-
dc.contributor.authorNakatsuka, N-
dc.contributor.authorNavin, A-
dc.contributor.authorNishi, S-
dc.contributor.authorOgoshi, S-
dc.contributor.authorOrr, NA-
dc.contributor.authorOtsu, H-
dc.contributor.authorSato, H-
dc.contributor.authorSatou, Y-
dc.contributor.authorShimizu, Y-
dc.contributor.authorSuzuki, H-
dc.contributor.authorTakahashi, K-
dc.contributor.authorTakeda, H-
dc.contributor.authorTakeuchi, S-
dc.contributor.authorTanaka, R-
dc.contributor.authorTogano, Y-
dc.contributor.authorTsubota, J-
dc.contributor.authorTuff, AG-
dc.contributor.authorVandebrouck, M-
dc.contributor.authorYoneda, K-
dc.date.accessioned2020-08-31T07:02:02Z-
dc.date.available2020-08-31T07:02:02Z-
dc.date.issued2020-
dc.identifier.citationPhysical Review Letters, 2020, v. 124 n. 21, article no. 212503-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/286306-
dc.description.abstractThe heaviest bound isotope of boron B19 has been investigated using exclusive measurements of its Coulomb dissociation, into B17 and two neutrons, in collisions with Pb at 220 MeV/nucleon. Enhanced electric dipole (E1) strength is observed just above the two-neutron decay threshold with an integrated E1 strength of B(E1)=1.64±0.06(stat)±0.12(sys) e2 fm2 for relative energies below 6 MeV. This feature, known as a soft E1 excitation, provides the first firm evidence that B19 has a prominent two-neutron halo. Three-body calculations that reproduce the energy spectrum indicate that the valence neutrons have a significant s-wave configuration and exhibit a dineutronlike correlation.-
dc.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at https://journals.aps.org/prl/-
dc.relation.ispartofPhysical Review Letters-
dc.rightsCopyright 2020 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevLett.124.212503.-
dc.titleHalo Structure of the Neutron-Dripline Nucleus 19B-
dc.typeArticle-
dc.identifier.emailLee, J: jleehc@hku.hk-
dc.identifier.authorityLee, J=rp01902-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevLett.124.212503-
dc.identifier.pmid32530691-
dc.identifier.scopuseid_2-s2.0-85085972492-
dc.identifier.hkuros313368-
dc.identifier.volume124-
dc.identifier.issue21-
dc.identifier.spagearticle no. 212503-
dc.identifier.epagearticle no. 212503-
dc.identifier.isiWOS:000535679100016-
dc.publisher.placeUnited States-
dc.identifier.issnl0031-9007-

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