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

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

doi:10.1051/epjconf/201714601002

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

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

J. L. Tain, V. Guadilla, E. Valencia, A. Algora, A. -A. Zakari-Issoufou, S. Rice, L. Le Meur, J. Agramunt, J. Aysto, L. Batist, …

ND 2016: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, Vol.146, p.1002

EPJ Web of Conferences

01/01/2017

DOI: https://doi.org/10.1051/epjconf/201714601002

Abstract

Nuclear Science & Technology

Physical Sciences

Physics

Physics, Nuclear

Science & Technology

Technology

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

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Title: Strong gamma-ray emission from neutron unbound states populated in beta-decay: Impact on (n,gamma) cross-section estimates
Creators: J. L. Tain - Univ Valencia, CSIC, Inst Fis Corpuscular, Paterna 46980, Spain
V. Guadilla - Instituto de Física Corpuscular
E. Valencia - Instituto de Física Corpuscular
A. Algora - Instituto de Física Corpuscular
A. -A. Zakari-Issoufou - Laboratoire de Physique Subatomique et des Technologies Associées
S. Rice - University of Surrey
L. Le Meur - Laboratoire de Physique Subatomique et des Technologies Associées
J. Agramunt - Instituto de Física Corpuscular
J. Aysto - University of Jyväskylä
L. Batist - Petersburg Nuclear Physics Institute
M. Bowry - University of Surrey
J. A. Briz - Laboratoire de Physique Subatomique et des Technologies Associées
V. M. Bui - Laboratoire de Physique Subatomique et des Technologies Associées
R. Caballero-Folch - Universitat Politècnica de Catalunya
D. Cano-Ott - Ctr Invest Energet Medioambientales & Tecnol, Madrid 28040, Spain
A. Cucoanes - Laboratoire de Physique Subatomique et des Technologies Associées
V. -V. Elomaa - University of Jyväskylä
T. Eronen - University of Jyväskylä
E. Estevez - Instituto de Física Corpuscular
M. Estienne - Laboratoire de Physique Subatomique et des Technologies Associées
M. Fallot - Institut National de Physique Nucléaire et de Physique des Particules
G. F. Farrelly - University of Surrey
L. M. Fraile - Universidad Complutense de Madrid
E. Ganioglu - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
A. R. Garcia - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
W. Gelletly - University of Surrey
B. Gomez-Hornillos - Univ Politecn Cataluna, E-08028 Barcelona, Spain
D. Gorelov - University of Jyväskylä
V. Gorlychev - Universitat Politècnica de Catalunya
J. Hakala - University of Jyväskylä
A. Jokinen - University of Jyväskylä
M. D. Jordan - Univ Valencia, CSIC, Inst Fis Corpuscular, Paterna 46980, Spain
A. Kankainen - University of Jyväskylä
V. S. Kolhinen - University of Jyväskylä
F. G. Kondev - Argonne National Laboratory
J. Koponen - University of Jyväskylä
M. Lebois - Institut de Physique
T. Martinez - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
P. Mason - University of Surrey
E. Mendoza - Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
M. Monserrate - Instituto de Física Corpuscular
A. Montaner-Piza - Instituto de Física Corpuscular
I. Moore - University of Jyväskylä
E. Nacher - Instituto de Estructura de la Materia
S. E. A. Orrigo - Instituto de Física Corpuscular
H. Penttila - University of Jyväskylä
Zs Podolyak - University of Surrey
I. Pohjalainen - University of Jyväskylä
A. Porta - Institut National de Physique Nucléaire et de Physique des Particules
P. H. Regan - University of Surrey
J. Reinikainen - University of Jyväskylä
M. Reponen - University of Jyväskylä
S. Rinta-Antila - University of Jyväskylä
J. Rissanen - University of Jyväskylä
B. Rubio - Instituto de Física Corpuscular
K. Rytkonen - University of Jyväskylä
T. Shiba - Laboratoire de Physique Subatomique et des Technologies Associées
V. Sonnenschein - University of Jyväskylä
A. A. Sonzogni - Brookhaven National Laboratory
V. Vedia - Universidad Complutense de Madrid
A. Voss - University of Jyväskylä
J. N. Wilson - Institut de Physique
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Contributors: A Plompen (Editor)
F J Hambsch (Editor)
P Schillebeeckx (Editor)
W Mondelaers (Editor)
J Heyse (Editor)
S Kopecky (Editor)
P Siegler (Editor)
S Oberstedt (Editor)
Publication Details: ND 2016: INTERNATIONAL CONFERENCE ON NUCLEAR DATA FOR SCIENCE AND TECHNOLOGY, Vol.146, p.1002
Series: EPJ Web of Conferences
Publisher: E D P Sciences
Number of pages: 6
Date published: 01/01/2017
Grant note: 21350 / Academy of Finland under the Finnish Centre of Excellence Programme; Research Council of Finland 605203 / European Commission; European Union (EU); European Commission Joint Research Centre DE-AC02-06CH11357 / U.S. Department of Energy; United States Department of Energy (DOE) University of Valencia FPA2008-06419; FPA2010-17142; FPA2011-24553; FPA2014-52823-C2-1-P; CPAN CSD-2007-00042 / Spanish Ministerio de Economia y Competitividad; Spanish Government SEV-2014-0398 / program Severo Ochoa; Spanish Government EPSRC(UK); UK Research & Innovation (UKRI); Engineering & Physical Sciences Research Council (EPSRC) UK National Measurement Office STFC(UK); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC)
Identifiers: 99928596802346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Conference proceeding

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

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