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Article: Investigation of particle-unbound excited states in light nuclei with resonance-decay spectroscopy using a Be12 beam

TitleInvestigation of particle-unbound excited states in light nuclei with resonance-decay spectroscopy using a Be12 beam
Authors
Issue Date2008
Citation
Physical Review C - Nuclear Physics, 2008, v. 78, n. 5 How to Cite?
AbstractResonance-decay spectroscopy is used to study particle-unbound excited states produced in interactions of E/A=50 MeV Be12 on polyethylene and carbon targets. The particle-unbound states are produced in a variety of reaction mechanisms, ranging from projectile fragmentation to proton pickup. New proton-decaying excited states are observed in Li9(E*=14.1±0.1 MeV, Γ=207±49 keV) and Be10(E*=20.4±0.1 MeV, Γ=182±74 keV). In addition a new α-decaying state is observed in B13(E*=13.6±0.1 MeV, Γ≤320 keV). Also found was a Be8 state with E*=23 MeV, Γ=616±30 keV, which decays to the p+3H+α channel. Correlation between the fragments indicates that the decay is initiated by a proton emission to the 4.63-MeV state of Li7 and the spin of the state is J>2. A second T=2 state was confirmed in B12 at 14.82 MeV, which decays to the p+11Be, 3H+9Be, and α+8Li channels. Its width was found to be Γ≤100 keV and its spin is consistent with Jπ=2+. © 2008 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/199969
ISSN
2014 Impact Factor: 3.733
2015 SCImago Journal Rankings: 1.601
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorCharity, Robert J.-
dc.contributor.authorKomarov, Sergey A.-
dc.contributor.authorSobotka, Lee G.-
dc.contributor.authorClifford, Jerome R.-
dc.contributor.authorBazin, Daniel P.-
dc.contributor.authorGade, Alexandra-
dc.contributor.authorLee, Jenny-
dc.contributor.authorLukyanov, S. M.-
dc.contributor.authorLynch, William G.-
dc.contributor.authorMocko, Michal-
dc.contributor.authorLobastov, Sergey P.-
dc.contributor.authorRogers, Andrew M.-
dc.contributor.authorSanetullaev, A.-
dc.contributor.authorTsang, Betty-
dc.contributor.authorWallace, Mark S.-
dc.contributor.authorZegers, Remco G T-
dc.contributor.authorHudan, Sylvie-
dc.contributor.authorMetelko, Carl J.-
dc.contributor.authorFamiano, Michael A.-
dc.contributor.authorWuosmaa, Alan H.-
dc.contributor.authorVan Goethem, Marc Jan-
dc.date.accessioned2014-07-26T23:10:58Z-
dc.date.available2014-07-26T23:10:58Z-
dc.date.issued2008-
dc.identifier.citationPhysical Review C - Nuclear Physics, 2008, v. 78, n. 5-
dc.identifier.issn0556-2813-
dc.identifier.urihttp://hdl.handle.net/10722/199969-
dc.description.abstractResonance-decay spectroscopy is used to study particle-unbound excited states produced in interactions of E/A=50 MeV Be12 on polyethylene and carbon targets. The particle-unbound states are produced in a variety of reaction mechanisms, ranging from projectile fragmentation to proton pickup. New proton-decaying excited states are observed in Li9(E*=14.1±0.1 MeV, Γ=207±49 keV) and Be10(E*=20.4±0.1 MeV, Γ=182±74 keV). In addition a new α-decaying state is observed in B13(E*=13.6±0.1 MeV, Γ≤320 keV). Also found was a Be8 state with E*=23 MeV, Γ=616±30 keV, which decays to the p+3H+α channel. Correlation between the fragments indicates that the decay is initiated by a proton emission to the 4.63-MeV state of Li7 and the spin of the state is J>2. A second T=2 state was confirmed in B12 at 14.82 MeV, which decays to the p+11Be, 3H+9Be, and α+8Li channels. Its width was found to be Γ≤100 keV and its spin is consistent with Jπ=2+. © 2008 The American Physical Society.-
dc.languageeng-
dc.relation.ispartofPhysical Review C - Nuclear Physics-
dc.titleInvestigation of particle-unbound excited states in light nuclei with resonance-decay spectroscopy using a Be12 beam-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevC.78.054307-
dc.identifier.scopuseid_2-s2.0-56149112070-
dc.identifier.volume78-
dc.identifier.issue5-
dc.identifier.eissn1089-490X-
dc.identifier.isiWOS:000261214200016-

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