Independent measurement of the Hoyle state β feeding from B 12 using Gammasphere

Authors
Munch, M.; Alcorta, M.; Fynbo, H. O. U.; Albers, M.; Almaraz Calderon, S.; Avila, M. L.; Ayangeakaa, A. D.; Back, B. B.; Bertone, P. F.; Carnelli, Patricio Francisco Florencio; Carpenter, M. P.; Chiara, C. J.; Clark, J. A.; DiGiovine, B.; Greene, J. P.; Harker, J. L.; Hoffman, C. R.; Hubbard, N. J.; Jiang, C. L.; Kirsebom, O. S.; Lauritsen, T.; Laursen, K. L.; Marley, S. T.; Nair, C.; Nusair, O.; Santiago Gonzalez, D.; Sethi, J.; Seweryniak, D.; Talwar, R.; Ugalde, C.; Zhu, S.
Publication Year
2016
Language
English
Format
article
Status
Published version
Description
Using an array of high-purity Compton-suppressed germanium detectors, we performed an independent measurement of the β-decay branching ratio from 12B to the second-excited state, also known as the Hoyle state, in 12C. Our result is 0.64(11)%, which is a factor ∼2 smaller than the previously established literature value, but is in agreement with another recent measurement. This could indicate that the Hoyle state is more clustered than previously believed. The angular correlation of the Hoyle state γ cascade has also been measured for the first time. It is consistent with theoretical predictions.
Fil: Munch, M.. University Aarhus; Dinamarca
Fil: Alcorta, M.. Westbrook Mall; Canadá. Argonne National Laboratory; Estados Unidos
Fil: Fynbo, H. O. U.. University Aarhus; Dinamarca
Fil: Albers, M.. Argonne National Laboratory; Estados Unidos
Fil: Almaraz Calderon, S.. Argonne National Laboratory; Estados Unidos
Fil: Avila, M. L.. Argonne National Laboratory; Estados Unidos
Fil: Ayangeakaa, A. D.. Argonne National Laboratory; Estados Unidos
Fil: Back, B. B.. Argonne National Laboratory; Estados Unidos
Fil: Bertone, P. F.. Argonne National Laboratory; Estados Unidos
Fil: Carnelli, Patricio Francisco Florencio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Carpenter, M. P.. Argonne National Laboratory; Estados Unidos
Fil: Chiara, C. J.. Argonne National Laboratory; Estados Unidos. University of Maryland; Estados Unidos
Fil: Clark, J. A.. Argonne National Laboratory; Estados Unidos
Fil: DiGiovine, B.. Argonne National Laboratory; Estados Unidos
Fil: Greene, J. P.. Argonne National Laboratory; Estados Unidos
Fil: Harker, J. L.. Argonne National Laboratory; Estados Unidos. University of Maryland; Estados Unidos
Fil: Hoffman, C. R.. Argonne National Laboratory; Estados Unidos
Fil: Hubbard, N. J.. University of York; Reino Unido
Fil: Jiang, C. L.. Argonne National Laboratory; Estados Unidos
Fil: Kirsebom, O. S.. University Aarhus; Dinamarca
Fil: Lauritsen, T.. Argonne National Laboratory; Estados Unidos
Fil: Laursen, K. L.. University Aarhus; Dinamarca
Fil: Marley, S. T.. Argonne National Laboratory; Estados Unidos. Western Michigan University; Estados Unidos
Fil: Nair, C.. Argonne National Laboratory; Estados Unidos
Fil: Nusair, O.. Argonne National Laboratory; Estados Unidos
Fil: Santiago Gonzalez, D.. Argonne National Laboratory; Estados Unidos. State University of Louisiana; Estados Unidos
Fil: Sethi, J.. Argonne National Laboratory; Estados Unidos. University of Maryland; Estados Unidos
Fil: Seweryniak, D.. Argonne National Laboratory; Estados Unidos
Fil: Talwar, R.. Argonne National Laboratory; Estados Unidos
Fil: Ugalde, C.. Argonne National Laboratory; Estados Unidos. University of Chicago; Estados Unidos. Joint Institute for Nuclear Astrophysics; Estados Unidos
Fil: Zhu, S.. Argonne National Laboratory; Estados Unidos
Subject
HOYLE STATE
12B
12C
GAMMASPHERE
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/48071