학술논문
Strong γ-ray emission from neutron unbound states populated in β-decay: Impact on (n,γ) cross-section estimates
Document Type
article
Author
Tain J.L.; Guadilla V.; Valencia E.; Algora A.; Zakari-Issoufou A.-A.; Rice S.; Meur L. Le; Agramunt J.; Äystö 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.; Gómez-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.; Martínez T.; Mason P.; Mendoza E.; Monserrate M.; Montaner-Pizá A.; Moore I.; Nacher E.; Orrigo S.E.A.; Penttilä H.; Podolyák Zs.; Pohjalainen I.; Porta A.; Regan P.H.; Reinikainen J.; Reponen M.; Rinta-Antila S.; Rissanen J.; Rubio B.; Rytkönen K.; Shiba T.; Sonnenschein V.; Sonzogni A.A.; Vedia V.; Voss A.; Wilson J.N.
Source
EPJ Web of Conferences, Vol 146, p 01002 (2017)
Subject
Language
English
ISSN
2100-014X
Abstract
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. The results are compared with Hauser-Feshbach calculations and discussed.