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Improved precision on the experimental E0 decay branching ratio of the Hoyle state

Eriksen, Tomas Kvalheim; Kibedi, Tibor; Reed, Matthew; Stuchbery, Andrew; Cook, Kimberley; Akber, Aqeel; Alshahrani, Badriah; Avaa, Abraham A.; Banerjee, Kaushik; Berriman, Annette; Bezzina, Lauren; Bignell, Lindsey; Buete, Jacob; Carter, Ian; Coombes, Benjamin; Dowie, Jackson; Dasgupta, Mahananda; Evitts, L. J.; Garnsworthy, B. A.; Gerathy, Matthew; Gray, Timothy; Hinde, David; Hoang, T. H.; Hota, Sankha; Ideguchi, E.; Jones, P.; Lane, Gregory; McCormick, Brendan; Mitchell, Alan John; Palalani, Nyaladzi; Palazzo, Thomas; Ripper, Michaela; Simpson, Ed; Smallcombe, J.; Swinton-Bland, Ben; Tanaka, Taiki; Gabor Tornyi, Tamas; de Vries, Mitchell


Background: Stellar carbon synthesis occurs exclusively via the 3α process, in which three α particles fuse to form 12C in the excited Hoyle state, followed by electromagnetic decay to the ground state. The Hoyle state is above the α threshold, and the rate of stellar carbon production depends on the radiative width of this state. The radiative width cannot be measured directly, and must instead be deduced by combining three separately measured quantities. One of these quantities is the E0...[Show more]

CollectionsANU Research Publications
Date published: 2020-08-17
Type: Journal article
Source: Physical Review C: Nuclear Physics
DOI: 10.1103/PhysRevC.102.024320
Access Rights: Open Access


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