Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates

Tain, J. L.; Guadilla, V.; Valencia, E.; Algora, A.; Zakari-Issoufou, A. -A.; Rice, S.; Meur, L. Le; Agramunt, J.; Aysto, J.; Batist, L.; Bowry, M.; Briz, J. A.; Bui, V. M.; Caballero-Folch, R.; Cano-Ott, D.; Cucoanes, A.; Elomaa, V. -V.; Eronen, T.; Estevez, E.; Estienne, M.; Fallot, M.; Farrelly, G. F.; Fraile, L. M.; Ganioglu, E.; Garcia, A. R.; Gelletly, W.; Gomez-Hornillos, B.; Gorelov, D.; Gorlychev, V.; Hakala, J.; Jokinen, A.; Jordan, M. D.; Kankainen, A.; Kolhinen, V. S.; Kondev, F. G.; Koponen, J.; Lebois, M.; Martinez, T.; Mason, P.; Mendoza, E.; Monserrate, M.; Montaner-Piza, A.; Moore, I.; Nacher, E.; Orrigo, S. E. A.; Penttila, H.; Podolyák, Zs.; Pohjalainen, I.; Porta, A.; Regan, P. H.; Reinikainen, J.; Reponen, M.; Rinta-Antila, S.; Rissanen, J.; Rubio, B.; Rytkonen, K.; Shiba, T.; Sonnenschein, V.; Sonzogni, A. A.; Vedia, V.; Voss, A.; Wilson, J. N.

doi:10.1051/epjconf/201714601002

Title: Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates

Journal Article · Wed Sep 13 00:00:00 EDT 2017 · EPJ Web of Conferences

DOI:https://doi.org/10.1051/epjconf/201714601002· OSTI ID:1411146

Tain, J. L. ^[1]; Guadilla, V. ^[1]; Valencia, E. ^[1]; Algora, A. ^[2]; Zakari-Issoufou, A. -A. ^[3]; Rice, S. ^[4]; Meur, L. Le ^[3]; Agramunt, J. ^[1]; Aysto, J. ^[5]; Batist, L. ^[6]; Bowry, M. ^[4]; Briz, J. A. ^[3]; Bui, V. M. ^[3]; Caballero-Folch, R. ^[7]; Cano-Ott, D. ^[8]; Cucoanes, A. ^[3]; Elomaa, V. -V. ^[5]; Eronen, T. ^[5]; Estevez, E. ^[1]; Estienne, M. ^[3] more »

CSIC - Univ. Valencia, Paterna (Spain)
CSIC - Univ. Valencia, Paterna (Spain); Institute of Nuclear Research of the Hungarian Academy of Sciences, Debrecen (Hungary)
Subatech, Nantes (France)
Univ. of Surrey, Guilford (United Kingdom)
Univ. of Jyvaskyla, Jyvaskyla (Finland)
Petersburg Nuclear Physics Institute, Gatchina (Russia)
Univ. Politecnica de Catalunya, Barcelona (Spain)
Centro de Investigaciones Energeticas Medioambientales y Tecnologicas, Madrid (Spain)
Univ. Complutense, Madrid (Spain)
Argonne National Lab. (ANL), Argonne, IL (United States)
Institut de Physique Nucleaire d'Orsay, Orsay (France)
Instituto de Estructura de la Materia, Madrid (Spain)
Univ. of Surrey, Guilford (United Kingdom); National Physical Lab., Middlesex (United Kingdom)
Brookhaven National Lab. (BNL), Upton, NY (United States)

Total absorption gamma-ray spectroscopy is used to measure accurately the intensity of γ emission from neutron-unbound states populated in the β-decay of delayed-neutron emitters. From the comparison of this intensity with the intensity of neutron emission one can deduce information on the (n,γ) cross section for unstable neutron-rich nuclei of interest in r process abundance calculations. A surprisingly large γ branching was observed for a number of isotopes. Here, the results are compared with Hauser-Feshbach calculations and discussed.

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Research Organization:: Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP); Spanish Ministerio de Economia y Competitividad (MINECO); European Commission, Community Research and Development Information Service (CORDIS), Seventh Framework Programme (FP7)

Grant/Contract Number:: SC0012704; AC02-06CH11357

OSTI ID:: 1411146

Alternate ID(s):: OSTI ID: 1393946

Report Number(s):: BNL-114737-2017-JA; TRN: US1800184

Journal Information:: EPJ Web of Conferences, Vol. 146; ISSN 2100-014X

Publisher:: EDP SciencesCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 3 works

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