ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Precise measurement of the γ-decay probability of the Hoyle state with a new triple coincidence-detection method

NázevTitle
Precise measurement of the γ-decay probability of the Hoyle state with a new triple coincidence-detection methodPrecise measurement of the γ-decay probability of the Hoyle state with a new triple coincidence-detection method
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
K. Sakanashi, T. Kawabata, S. Adachi, H. Akimune, R. Mihai
Klíčová slovaKeywords
Triple alpha reaction, Hoyle state, Nucleosynthesis, gamma-decay probability
DOIDOI
10.1016/j.physletb.2025.139893
Časopis / citaceJournal / citation
Physics Letters B 870, 139893 (2025) · ISSN 0370-2693
RokYear
2025
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
CitovánoCited by
2 (INSPIRE-HEP)
2026: 2
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

We measured the y-decay probability of the Hoyle state with a new method of triple coincidence detection of a scattered a particle, a recoil 12C nucleus, and a y ray in inelastic alpha scattering on 12C. This method successfully enabled a low-background measurement and a precise determination of the y-decay probability of the Hoyle state as rya' = [4.00 +/- 0.22(sta.) +/- 0.18(sys.)] x 10-4, which is consistent with the previous literature value. Therefore, we concluded that the literature value can be reliably used in the study of nucleosynthesis in the universe.

We measured the y-decay probability of the Hoyle state with a new method of triple coincidence detection of a scattered a particle, a recoil 12C nucleus, and a y ray in inelastic alpha scattering on 12C. This method successfully enabled a low-background measurement and a precise determination of the y-decay probability of the Hoyle state as rya' = [4.00 +/- 0.22(sta.) +/- 0.18(sys.)] x 10-4, which is consistent with the previous literature value. Therefore, we concluded that the literature value can be reliably used in the study of nucleosynthesis in the universe.

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