Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 한인식 | * |
dc.date.accessioned | 2016-08-27T04:08:55Z | - |
dc.date.available | 2016-08-27T04:08:55Z | - |
dc.date.issued | 2014 | * |
dc.identifier.issn | 0556-2813 | * |
dc.identifier.issn | 1089-490X | * |
dc.identifier.other | OAK-11818 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/216883 | - |
dc.description.abstract | The O-14(alpha, p)F-17 reaction is one of the key reactions involved in the breakout from the hot-CNO cycle to the rp-process in type-I x-ray bursts (XRBs). The resonant properties in the compound nucleus Ne-18 have been investigated through resonant elastic scattering of F-17 + p. The radioactive F-17 beam was separated by the Center for Nuclear Study radioactive ion beam separator (CRIB) and bombarded a thick H-2 gas target at 3.6 MeV/nucleon. The recoiling light particles were measured by three Delta E-E silicon telescopes at laboratory angles of theta(lab) approximate to 3 degrees, 10 degrees, and 18 degrees. Five resonances at E-x = 6.15, 6.28, 6.35, 6.85, and 7.05 MeV were observed in the excitation functions, and their spin-parities have been determined based on an R-matrix analysis. In particular, J(pi) = 1(-) was firmly assigned to the 6.15-MeV state which dominates the thermonuclear O-14(alpha, p)F-17 rate below 2 GK. As well, a possible new excited state in Ne-18 was observed at E-x = 6.85 +/- 0.11 MeV with tentative J = 0 assignment. This state could be the analog state of the 6.880 MeV (0(-)) level in the mirror nucleus O-18, or a bandhead state (0(+)) of the six-particle four-hole (6p-4h) band. A new thermonuclear O-14(alpha, p)F-17 rate has been determined, and the astrophysical impact of multiple recent rates has been examined using an XRB model. Contrary to previous expectations, we find only a modest impact on predicted nuclear energy generation rates from using reaction rates differing by up to several orders of magnitude. | * |
dc.language | English | * |
dc.publisher | AMER PHYSICAL SOC | * |
dc.title | Examination of the role of the O-14(alpha, p)F-17 reaction rate in type-I x-ray bursts | * |
dc.type | Article | * |
dc.relation.issue | 2 | * |
dc.relation.volume | 90 | * |
dc.relation.index | SCI | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.journaltitle | PHYSICAL REVIEW C | * |
dc.identifier.doi | 10.1103/PhysRevC.90.025803 | * |
dc.identifier.wosid | WOS:000341240300005 | * |
dc.author.google | Hu, J. | * |
dc.author.google | He, J. J. | * |
dc.author.google | Parikh, A. | * |
dc.author.google | Xu, S. W. | * |
dc.author.google | Yamaguchi, H. | * |
dc.author.google | Kahl, D. | * |
dc.author.google | Ma, P. | * |
dc.author.google | Su, J. | * |
dc.author.google | Wang, H. W. | * |
dc.author.google | Nakao, T. | * |
dc.author.google | Wakabayashi, Y. | * |
dc.author.google | Teranishi, T. | * |
dc.author.google | Hahn, K. I. | * |
dc.author.google | Moon, J. Y. | * |
dc.author.google | Jung, H. S. | * |
dc.author.google | Hashimoto, T. | * |
dc.author.google | Chen, A. A. | * |
dc.author.google | Irvine, D. | * |
dc.author.google | Lee, C. S. | * |
dc.author.google | Kubono, S. | * |
dc.contributor.scopusid | 한인식(7201832280;57205469686;57192312712) | * |
dc.date.modifydate | 20240415134453 | * |