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Measurement of key resonances for the 24Al( p,γ )25Si reaction rate using in-beam γ -ray spectroscopy

dc.contributor.authorLongfellow, B.en_ZA
dc.contributor.authorGade, A.en_ZA
dc.contributor.authorBrown, B. A.en_ZA
dc.contributor.authorRichter, W. A.en_ZA
dc.contributor.authorBazin, D.en_ZA
dc.contributor.authorBender, P. C.en_ZA
dc.contributor.authorBowry, M.en_ZA
dc.contributor.authorElman, B.en_ZA
dc.contributor.authorLunderberg, E.en_ZA
dc.contributor.authorWeisshaar, D.en_ZA
dc.contributor.authorWilliams, S. J.en_ZA
dc.date.accessioned2019-10-24T12:04:47Z
dc.date.available2019-10-24T12:04:47Z
dc.date.issued2018
dc.identifier.citationLongfellow, B., et al. 2018. Measurement of key resonances for the 24Al( p,γ )25Si reaction rate using in-beam γ -ray spectroscopy. Physical Review C, 97(5):054307, doi:10.1103/PhysRevC.97.054307en_ZA
dc.identifier.issn2469-9993 (online)
dc.identifier.issn2469-9985 (print)
dc.identifier.otherdoi:10.1103/PhysRevC.97.054307
dc.identifier.urihttp://hdl.handle.net/10019.1/106722
dc.descriptionCITATION: Longfellow, B., et al. 2018. Measurement of key resonances for the 24Al( p,γ )25Si reaction rate using in-beam γ -ray spectroscopy. Physical Review C, 97(5):054307, doi:10.1103/PhysRevC.97.054307.en_ZA
dc.descriptionThe original publication is available at https://journals.aps.org/prcen_ZA
dc.description.abstractEnergy levels and branching ratios for the rp-process nucleus 25Si were determined from the reactions 9Be(26Si,25Si)X and 9Be(25Al,25Si)X using in-beam γ-ray spectroscopy with both high-efficiency and high-resolution detector arrays. Proton-unbound states at 3695(14) and 3802(11) keV were identified and assigned tentative spins and parities based on comparison to theory and the mirror nucleus. The 24Al(p,γ)25Si reaction rate was calculated using the experimental states and states from charge-dependent USDA and USDB shell-model calculations with downward shifts of the 1s1/2 proton orbital to account for the observed Thomas-Ehrman shift, leading to a factor of 10–100 increase in rate for the temperature region of 0.22 GK as compared to a previous calculation. These shifts may be applicable to neighboring nuclei, impacting the proton capture rates in this region of the chart.en_ZA
dc.description.urihttps://journals.aps.org/prc/abstract/10.1103/PhysRevC.97.054307
dc.format.extent8 pages : colour illustrationsen_ZA
dc.language.isoen_ZAen_ZA
dc.publisherAmerican Physical Societyen_ZA
dc.subjectSpin (Physics)en_ZA
dc.subjectSpectroscopyen_ZA
dc.subjectResonance (Physics)en_ZA
dc.subjectNucleien_ZA
dc.subjectThomas-Ehrman shiftsen_ZA
dc.subjectNuclear Physics -- Researchen_ZA
dc.titleMeasurement of key resonances for the 24Al( p,γ )25Si reaction rate using in-beam γ -ray spectroscopyen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's versionen_ZA
dc.rights.holderAmerican Physical Societyen_ZA


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