EPJ Web of Conferences (Jan 2023)
The β-decay of 71Kr: Precise measurement of the half-life
- Vitéz-Sveiczer A.,
- Algora A.,
- Kiss G.G.,
- Rubio B.,
- Morales A.I.,
- Sarriguren P.,
- de Angelis G.,
- Recchia F.,
- Nishimura S.,
- Agramunt J.,
- Guadilla V.,
- Montaner-Pizá A.,
- Orrigo S.E.A.,
- Horváth Á.,
- Napoli D.,
- Lenzi S.,
- Boso A.,
- Phong V.,
- Wu J.,
- Söderström P.-A.,
- Sumikama T.,
- Suzuki H.,
- Takeda H.,
- Ahn D.S.,
- Baba H.,
- Doornenbal P.,
- Fukuda N.,
- Inabe N.,
- Isobe T.,
- Kubo T.,
- Kubono S.,
- Sakurai H.,
- Shimizu Y.,
- Sidong C.,
- Blank B.,
- Ascher P.,
- Gerbaux M.,
- Goigoux T.,
- Giovinazzo J.,
- Grévy S.,
- Kurtukián Nieto T.,
- Magron C.,
- Gelletly W.,
- Dombrádi Zs.,
- Fujita Y.,
- Tanaka M.,
- Aguilera P.,
- Molina F.,
- Eberth J.,
- Diel F.,
- Lubos D.,
- Borcea C.,
- Ganioglu E.,
- Nishimura D.,
- Oikawa H.,
- Takei Y.,
- Yagi S.,
- Korten W.,
- de France G.,
- Davies P.,
- Liu J.,
- Lee J.,
- Lokotko T.,
- Kojouharov I.,
- Kurz N.,
- Shaffner H.,
- Petrovici A.
Affiliations
- Vitéz-Sveiczer A.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Algora A.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Kiss G.G.
- Institute for Nuclear Research (Atomki)
- Rubio B.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Morales A.I.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Sarriguren P.
- Instituto de Estructura de la Materia, IEM-CSIC
- de Angelis G.
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
- Recchia F.
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova
- Nishimura S.
- RIKEN – Nishina Center, Wako
- Agramunt J.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Guadilla V.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Montaner-Pizá A.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Orrigo S.E.A.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Horváth Á.
- Eötvös Loránd University, Institute of Physics
- Napoli D.
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro
- Lenzi S.
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova
- Boso A.
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova
- Phong V.
- RIKEN – Nishina Center, Wako
- Wu J.
- RIKEN – Nishina Center, Wako
- Söderström P.-A.
- RIKEN – Nishina Center, Wako
- Sumikama T.
- RIKEN – Nishina Center, Wako
- Suzuki H.
- RIKEN – Nishina Center, Wako
- Takeda H.
- RIKEN – Nishina Center, Wako
- Ahn D.S.
- RIKEN – Nishina Center, Wako
- Baba H.
- RIKEN – Nishina Center, Wako
- Doornenbal P.
- RIKEN – Nishina Center, Wako
- Fukuda N.
- RIKEN – Nishina Center, Wako
- Inabe N.
- RIKEN – Nishina Center, Wako
- Isobe T.
- RIKEN – Nishina Center, Wako
- Kubo T.
- RIKEN – Nishina Center, Wako
- Kubono S.
- RIKEN – Nishina Center, Wako
- Sakurai H.
- RIKEN – Nishina Center, Wako
- Shimizu Y.
- RIKEN – Nishina Center, Wako
- Sidong C.
- RIKEN – Nishina Center, Wako
- Blank B.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Ascher P.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Gerbaux M.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Goigoux T.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Giovinazzo J.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Grévy S.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Kurtukián Nieto T.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Magron C.
- Centre d Etudes Nucléaires de Bordeaux-Gradignan, UMR 5797 Université de Bordeaux CNRS/IN2P3
- Gelletly W.
- Instituto de Fisica Corpuscular, CSIC-Universitat de Valéncia
- Dombrádi Zs.
- Institute for Nuclear Research (Atomki)
- Fujita Y.
- Research Center for Nuclear Physics, Osaka University
- Tanaka M.
- Department of Physics, Osaka University
- Aguilera P.
- CEFNEN, Comisión Chilena de Energía Nuclear
- Molina F.
- CEFNEN, Comisión Chilena de Energía Nuclear
- Eberth J.
- Institute of Nuclear Physics, University of Cologne
- Diel F.
- Institute of Nuclear Physics, University of Cologne
- Lubos D.
- Physik Department E12, Technische Universität München
- Borcea C.
- National Institute for Physics and Nuclear Engineering IFIN-HH
- Ganioglu E.
- Department of Physics, Istanbul University
- Nishimura D.
- Department of Natural Sciences, Tokyo City University
- Oikawa H.
- Department of Physics, Tokyo University of Science
- Takei Y.
- Department of Physics, Tokyo University of Science
- Yagi S.
- Department of Physics, Tokyo University of Science
- Korten W.
- IRFU/DPhN, CEA, Université Paris-Saclay
- de France G.
- Grand Accélérateur National d Ions Lourds
- Davies P.
- >Department of Physics, University of York
- Liu J.
- Department of Physics, University of Hong Kong
- Lee J.
- Department of Physics, University of Hong Kong
- Lokotko T.
- Department of Physics, University of Hong Kong
- Kojouharov I.
- GSI
- Kurz N.
- GSI
- Shaffner H.
- GSI
- Petrovici A.
- National Institute for Physics and Nuclear Engineering IFIN-HH
- DOI
- https://doi.org/10.1051/epjconf/202329002021
- Journal volume & issue
-
Vol. 290
p. 02021
Abstract
The very proton-rich 71Kr isotope was produced through the in-flight fragmentation of 78Kr on a beryllium target at RIKEN – Nishina Center in order to study its β-decay properties. A stack of double-sided silicon strip detectors, called WAS3ABi, was used as the decay station, where the detection of ion implants, β-decays and β-delayed protons took place. Beta-delayed γ-rays were measured using a system of 84 HPGe detectors, called EURICA, surrounding the decay station. The main goal of the present study was the precise measurement of the half-life of 71Kr, as in the literature there is an almost 10 σ difference between the most precise independent results. Implant–β time correlations, implant–proton time correlations and implant–β–γ time correlations were all used to derive the half-life value, followed by a thorough investigation of systematic uncertainties for each method. As these values were found to be consistent, the weighted average t1/2 = 94.40+19ms is reported as a new half-life value in this work. Furthermore a total of 26 previously unreported γ following the β-decay of 71Kr were also identified in the analysis.
