Measurement of the 2+→0+ ground-state transition in the β decay of 20F
Kirsebom, O. S., Hukkanen, M., Kankainen, A., Trzaska, W. H., Strömberg, D. F., Martínez-Pinedo, G., Andersen, K., Bodewits, E., Brown, B. A., Canete, L., Cederkäll, J., Enqvist, T., Eronen, T., Fynbo, H. O. U., Geldhof, S., de Groote, R., Jokinen, A., Joshi, P., Khanam, A., . . . Äystö, J. (2019). Measurement of the 2+→0+ ground-state transition in the β decay of 20F. Physical Review C, 100(6), Article 065805. https://doi.org/10.1103/PhysRevC.100.065805
Published in
Physical Review CAuthors
Date
2019Discipline
Ydin- ja kiihdytinfysiikan huippuyksikköCentre of Excellence in Nuclear and Accelerator Based PhysicsCopyright
© 2019 American Physical Society
We report the first detection of the second-forbidden, nonunique, 2+→0+, ground-state transition in the β decay of 20F. A low-energy, mass-separated 20F+ beam produced at the IGISOL facility in Jyväskylä, Finland, was implanted in a thin carbon foil and the β spectrum measured using a magnetic transporter and a plastic-scintillator detector. The β-decay branching ratio inferred from the measurement is bβ=[0.41±0.08(stat)±0.07(sys)]×10−5 corresponding to logft=10.89(11), making this one of the strongest second-forbidden, nonunique β transitions ever measured. The experimental result is supported by shell-model calculations and has significant implications for the final evolution of stars that develop degenerate oxygen-neon cores. Using the new experimental data, we argue that the astrophysical electron-capture rate on 20Ne is now known to within better than 25% at the relevant temperatures and densities.
Publisher
American Physical SocietyISSN Search the Publication Forum
2469-9985Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/34168839
Metadata
Show full item recordCollections
Related funder(s)
European Commission; Academy of FinlandFunding program(s)
Research post as Academy Research Fellow, AoF; Research costs of Academy Research Fellow, AoF


The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about funding
This work has been supported by the Academy of Finland under the Finnish Centre of Excellence Programme (Nuclear and Accelerator Based Physics Research at JYFL 2012-2017) and Academy of Finland Grants No. 275389, No. 284516, No. 295207, and No. 312544. D.F.S. and G.M.-P. acknowledge the support of the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-Projektnummer 279384907-SFB 1245 “Nuclei: From Fundamental Interactions to Structure and Stars”; and the ChETEC COST action (CA16117), funded by COST (European Cooperation in Science and Technology). This project has been partly supported by the Spanish Ministry MINECO through the grant FPA2015-64969-P and has received funding from the European Union's Horizon 2020 research and innovation programme under Grant Agreement No. 654002 (ENSAR2). O.S.K. acknowledges support from the Villum Foundation through Project No. 10117. P.C.S. acknowledges the support from the Faculty Initiation Grant (FIG) provided by IIT Roorkee. A.K. and M.H. acknowledge the support from the European Union's Horizon 2020 research and innovation program under Grant Agreement No. 771036 (ERC CoG MAIDEN). B.A.B. acknowledges the support from NSF Grant PHY-1811855.

License
Related items
Showing items with similar title or keywords.
-
Quadrupole deformation of Xe130 measured in a Coulomb-excitation experiment
Morrison, L.; Hadyńska-Klȩk, K.; Podolyák, Zs.; Doherty, D. T.; Gaffney, L. P.; Kaya, L.; Próchniak, L.; Samorajczyk-Pyśk, J.; Srebrny, J.; Berry, T.; Boukhari, A.; Brunet, M.; Canavan, R.; Catherall, R.; Colosimo, S. J.; Cubiss, J. G.; De Witte, H.; Fransen, Ch.; Giannopoulos, E.; Hess, H.; Kröll, T.; Lalović, N.; Marsh, B.; Palenzuela, Y. Martinez; Napiorkowski, P. J.; O'Neill, G.; Pakarinen, Janne; Ramos, J. P.; Reiter, P.; Rodriguez, J. A.; Rosiak, D.; Rothe, S.; Rudigier, M.; Siciliano, M.; Snäll, J.; Spagnoletti, P.; Thiel, S.; Warr, N.; Wenander, F.; Zidarova, R.; Zielińska, M. (American Physical Society (APS), 2020)Low-lying states in the isotope 130Xe were populated in a Coulomb-excitation experiment performed at CERN's HIE-ISOLDE facility. The magnitudes and relative signs of seven E2 matrix elements and one M1 matrix element ... -
Lifetime measurements of excited states in 163W and the implications for the anomalous B(E2) ratios in transitional nuclei
Lewis, M.C.; Joss, D.T.; Sayğı, B.; Page, R.D.; Cullen, D.M.; Barber, L.; Giles, M.M.; Simpson, J.; Al-Aqeel, M.A.M.; Badran, H.; Braunroth, T.; Briscoe, A.D.; Calverley, T.; Dewald, A.; Doncel, M.; Grahn, T.; Greenlees, P.T.; Henrich, C.; Herzáň, A.; Herzberg, R.-D.; Higgins, E.; Hilton, J.; Ilieva, S.; Julin, R.; Juutinen, S.; Keatings, J.; Kröll, T.; Labiche, M.; Mashtakov, K.; Nara Singh, B.S.; Parr, E.; Partanen, J.; Paul, E.S.; Rahkila, P.; Sandzelius, M.; Sarén, J.; Scholey, C.; Siciliano, M.; Spagnoletti, P.; Stolze, S.; Szwec, S.V.; Taylor, M.J.; Uusitalo, J. (Elsevier, 2019)This letter reports lifetime measurements of excited states in the odd-N nucleus 163W using the recoil-distance Doppler shift method to probe the core polarising effect of the i13/2 neutron orbital on the underlying soft ... -
Lifetime Measurements of Excited States in 172Pt and the Variation of Quadrupole Transition Strength with Angular Momentum
Cederwall, B.; Doncel, M.; Aktas, Ö.; Ertoprak, A.; Liotta, R.; Qi, C.; Grahn, Tuomas; Cullen, D. M; Hodge, D.; Giles, M.; Stolze, Sanna; Badran, Hussam; Braunroth, T.; Calverley, Tom; Cox, Daniel; Fang, Y. D.; Greenlees, Paul; Hilton, Joshua; Ideguchi, E.; Julin, Rauno; Juutinen, Sakari; Raju, M. Kumar; Li, H.; Liu, H.; Matta, S.; Modamio, V.; Pakarinen, Janne; Papadakis, Philippos; Partanen, Jari; Petrache, C. M.; Rahkila, Panu; Ruotsalainen, Panu; Sandzelius, Mikael; Sarén, Jan; Scholey, Catherine; Sorri, Juha; Subramaniam, P.; Taylor, M. J.; Uusitalo, Juha; Valiente-Dobón, J. J. (American Physical Society, 2018)Lifetimes of the first excited 2 + and 4 + states in the extremely neutron-deficient nuclide 172 Pt have been measured for the first time using the recoil-distance Doppler shift and recoil-decay tagging ... -
Disentangling decaying isomers and searching for signatures of collective excitations in β decay
Guadilla, V.; Fallot, M.; Algora, A.; Tain, J. L.; Agramunt, J.; Äystö, J.; Briz, J. A.; Cucoanes, A.; Eronen, T.; Estienne, M.; Fraile, L. M.; Ganioǧlu, E.; Gelletly, W.; Gorelov, D.; Hakala, J.; Jokinen, A.; Jordan, D.; Kankainen, A.; Kolhinen, V.; Koponen, J.; Lebois, M.; Meur, L. L.; Martinez, T.; Monserrate, M.; Montaner-Pizá, A.; Moore, I.; Nácher, E.; Orrigo, S. E. A.; Penttilä, H.; Pohjalainen, I.; Porta, A.; Reinikainen, J.; Reponen, M.; Rinta-Antila, S.; Rubio, B.; Rytkönen, K.; Shiba, T.; Sonnenschein, V.; Sonzogni, A. A.; Valencia, E.; Vedia, V.; Voss, A.; Wilson, J. N.; Zakari-Issoufou, A. A. (IOP Publishing Ltd, 2020)In this contribution we summarize the recent study of the β decay of neutron-rich nuclei with isomeric states close in energy to the ground states. The disentanglement of each pair of β-decaying states was achieved by ... -
Study of exotic decay of Cs isotope close to the proton drip line
Das, P.; Dattaf, U.; Chakraborty, S.; Rahman, A.; Borge, M. J. G.; Tengblad, O.; Andreyev, A. N.; Becerril, A.; Bhattacharya, P.; Bhattacharyya, A.; Cederkall, J.; Witte, H. D.; Fraile, L. M.; Gottberg, A.; Greenlees, P. T.; Harkness-Brennan, L. J.; Huyse, M.; Judson, D. S.; Konki, J.; Kurcewicz, J.; Kowalska, M.; Lazarus, I.; Lica, R.; Mandal, S.; Madurga, M.; Marginean, N.; Marginean, R.; Mihai, C.; Morroquin, I.; Nacher, E.; Negret, A.; Page, R. D.; Pascu, S.; Perea, A.; Pucknell, V.; Rahkila, P.; Rapisarda, E.; Rotaru, F.; Ray, J.; Sotty, C. O.; Duppen, P. V.; Vedia, V.; Warr, N.; Stora,T.; Wadsworth, R. (IOP Publishing Ltd, 2020)The neutron-deficient 115Cs was produced at ISOLDE, CERN by spallation reaction using 1.4 GeV proton on LaC2 target. The exotic decay modes were studied by using a charged particle array (DSSD and pad detectors) and a ...