First measurement of S-30 + alpha resonant elastic scattering for the S-30(alpha, p) reaction rate
DC Field | Value | Language |
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dc.contributor.author | Kahl, D. | - |
dc.contributor.author | Yamaguchi, H. | - |
dc.contributor.author | Kubono, S. | - |
dc.contributor.author | Chen, A. A. | - |
dc.contributor.author | Parikh, A. | - |
dc.contributor.author | Binh, D. N. | - |
dc.contributor.author | Chen, J. | - |
dc.contributor.author | Cherubini, S. | - |
dc.contributor.author | Duy, N. N. | - |
dc.contributor.author | Hashimoto, T. | - |
dc.contributor.author | Hayakawa, S. | - |
dc.contributor.author | Iwasa, N. | - |
dc.contributor.author | Jung, H. S. | - |
dc.contributor.author | Kato, S. | - |
dc.contributor.author | Kwon, Y. K. | - |
dc.contributor.author | Nishimura, S. | - |
dc.contributor.author | Ota, S. | - |
dc.contributor.author | Setoodehnia, K. | - |
dc.contributor.author | Teranishi, T. | - |
dc.contributor.author | Tokieda, H. | - |
dc.contributor.author | Yamada, T. | - |
dc.contributor.author | Yun, C. C. | - |
dc.contributor.author | Zhang, L. Y. | - |
dc.date.accessioned | 2021-06-18T07:43:55Z | - |
dc.date.available | 2021-06-18T07:43:55Z | - |
dc.date.issued | 2018-01 | - |
dc.identifier.issn | 2469-9985 | - |
dc.identifier.issn | 2469-9993 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/45365 | - |
dc.description.abstract | Background: Type I x-ray bursts are the most frequently observed thermonuclear explosions in the galaxy, resulting from thermonuclear runaway on the surface of an accreting neutron star. The S-30(alpha, p) reaction plays a critical role in burst models, yet insufficient experimental information is available to calculate a reliable, precise rate for this reaction. Purpose: Our measurement was conducted to search for states in Ar-34 and determine their quantum properties. In particular, natural-parity states with large alpha-decay partial widths should dominate the stellar reaction rate. Method: We performed the firstmeasurement of S-30 + alpha resonant elastic scattering up to a center-of-mass energy of 5.5 MeV using a radioactive ion beam. The experiment utilized a thick gaseous active target system and silicon detector array in inverse kinematics. Results: We obtained an excitation function for S-30(alpha,alpha) near 150 degrees. in the center-of-mass frame. The experimental data were analyzed with R-matrix calculations, and we observed three new resonant patterns between 11.1 and 12.1 MeV, extracting their properties of resonance energy, widths, spin, and parity. Conclusions: We calculated the resonant thermonuclear reaction rate of 30S(alpha, p) based on all available experimental data of Ar-34 and found an upper limit about one order of magnitude larger than a rate determined using a statistical model. The astrophysical impact of these two rates has been investigated through one-zone postprocessing type I x-ray burst calculations. We find that our new upper limit for the S-30(alpha, p)Cl-33 rate significantly affects the predicted nuclear energy generation rate during the burst. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | First measurement of S-30 + alpha resonant elastic scattering for the S-30(alpha, p) reaction rate | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevC.97.015802 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW C, v.97, no.1 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000419099700004 | - |
dc.identifier.scopusid | 2-s2.0-85040190965 | - |
dc.citation.number | 1 | - |
dc.citation.title | PHYSICAL REVIEW C | - |
dc.citation.volume | 97 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | X-RAY-BURSTS | - |
dc.subject.keywordPlus | ACCRETING NEUTRON-STARS | - |
dc.subject.keywordPlus | NE-18(ALPHA,P)NA-21 REACTION | - |
dc.subject.keywordPlus | ELASTIC-SCATTERING | - |
dc.subject.keywordPlus | CROSS-SECTIONS | - |
dc.subject.keywordPlus | SEPARATOR CRIB | - |
dc.subject.keywordPlus | REACTION-RATES | - |
dc.subject.keywordPlus | RP-PROCESS | - |
dc.subject.keywordPlus | ALPHA | - |
dc.subject.keywordPlus | ASTROPHYSICS | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Nuclear | - |
dc.description.journalRegisteredClass | sci | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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