Discovery of an Exceptionally Strong β-Decay Transition of 20F and Implications for the Fate of Intermediate-Mass Stars
Kirsebom, O. S., Jones, S., Strömberg, D. F., Martínez-Pinedo, G., Langanke, K., Röpke, F. K., Brown, B. A., Eronen, T., Fynbo, H. O. U., Hukkanen, M., Idini, A., Jokinen, A., Kankainen, A., Kostensalo, J., Moore, I., Möller, H., Ohlmann, S. T., Penttilä, H., Riisager, K., . . . Äystö, J. (2019). Discovery of an Exceptionally Strong β-Decay Transition of 20F and Implications for the Fate of Intermediate-Mass Stars. Physical Review Letters, 123(26), Article 262701. https://doi.org/10.1103/PhysRevLett.123.262701
Published in
Physical Review LettersAuthors
Date
2019Copyright
© 2019 American Physical Society
A significant fraction of stars between 7 and 11 solar masses are thought to become supernovae, but the explosion mechanism is unclear. The answer depends critically on the rate of electron capture on 20Ne in the degenerate oxygen-neon stellar core. However, because of the unknown strength of the transition between the ground states of 20Ne and 20F, it has not previously been possible to fully constrain the rate. By measuring the transition, we establish that its strength is exceptionally large and that it enhances the capture rate by several orders of magnitude. This has a decisive impact on the evolution of the core, increasing the likelihood that the star is (partially) disrupted by a thermonuclear explosion rather than collapsing to form a neutron star. Importantly, our measurement resolves the last remaining nuclear physics uncertainty in the final evolution of degenerate oxygen-neon stellar cores, allowing future studies to address the critical role of convection, which at present is poorly understood.
...
Publisher
American Physical SocietyISSN Search the Publication Forum
0031-9007Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/34157273
Metadata
Show full item recordCollections
Related funder(s)
Research Council of Finland; European CommissionFunding program(s)
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. 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). ...License
Related items
Showing items with similar title or keywords.
-
Low-spin excitations in 89Br populated in β−decay of 89Se
Rząca-Urban, T.; Sieja, K.; Czerwiński, M.; Kurpeta, J.; Pomorski, M.; Urban, W.; Wiśniewski, J.; Wróblewski, M.; Canete, L.; Eronen, T.; Geldhof, S.; Jokinen, A.; Kankainen, A.; Moore, I. D.; Nesterenko, D.; Penttilä, H.; Pohjalainen, I.; Rinta-Antila, S.; de Roubin, A.; Vilén, M. (American Physical Society (APS), 2022)Low-spin, excited states of the 89Br nucleus, populated in β− decay of 89Se have been studied for the first time. The 89Se nuclei were produced in proton-induced fission of natural thorium using the IGISOL facility and ... -
A Novel Approach to β-Decay : PANDORA, a New Experimental Setup for Future In-Plasma Measurements
Mascali, David; Santonocito, Domenico; Amaducci, Simone; Andò, Lucio; Antonuccio, Vincenzo; Biri, Sándor; Bonanno, Alfio; Bonanno, Vincenza Piera; Briefi, Stefan; Busso, Maurizio; Celona, Luigi; Cosentino, Luigi; Cristallo, Sergio; Cuffiani, Marco; De Angelis, Costantino; De Angelis, Giacomo; De Salvador, Davide; Di Donato, Loreto; Ducret, Jean-Eric; Eshkevar, Vakili Aref; Fantz, Ursel; Galatà, Alessio; Gallo, Carmelo Sebastiano; Gammino, Santo; Isernia, Tommaso; Koivisto, Hannu; Kratz, Karl-Ludwig; Kronholm, Risto; La Cognata, Marco; Leoni, Silvia; Locatelli, Andrea; Maggiore, Mario; Maimone, Fabio; Malferrari, Luciana; Mancini, Giorgio; Maunoury, Laurent; Mauro, Giorgio Sebastiano; Mazzaglia, Maria; Mengoni, Alberto; Miraglia, Andrea; Mishra, Bharat; Musumeci, Mario; Napoli, Daniel Ricardo; Naselli, Eugenia; Odorici, Fabrizio; Palladino, Libero; Palmisano, Giuseppe; Pavone, Santi; Pennisi, Salvatore; Perego, Albino; Pidatella, Angelo; Rácz, Richard; Reitano, Riccardo; Rifuggiato, Danilo; Rinaldi, Matteo; Russo, Antonio Domenico; Russo, Filippo; Schillaci, Gaetano; Selleri, Stefano; Simonucci, Stefano; Sorbello, Gino; Spartà, Roberta; Taioli, Simone; Tinschert, Klaus; Torrisi, Giuseppe; Trifirò, Antonio; Tsikata, Sedina; Tumino, Aurora; Vescovi, Diego; Vincetti, Luca (MDPI AG, 2022)Theoretical predictions as well as experiments performed at storage rings have shown that the lifetimes of β-radionuclides can change significantly as a function of the ionization state. In this paper we describe an ... -
Array of cryogenic calorimeters to evaluate the spectral shape of forbidden β-decays : the ACCESS project
Pagnanini, L.; Benato, G.; Carniti, P.; Celi, E.; Chiesa, D.; Corbett, J.; Dafinei, I.; Di Domizio, S.; Di Stefano, P.; Ghislandi, S.; Gotti, C.; Helis D., L.; Knobel, R.; Kostensalo, J.; Kotila, J.; Nagorny, S.; Pessina, G.; Pirro, S.; Pozzi, S.; Puiu, A.; Quitadamo, S.; Sisti, M.; Suhonen, J.; Kuznetsov, S.; The ACCESS Collaboration (Springer Science and Business Media LLC, 2023)The ACCESS (Array of Cryogenic Calorimeters to Evaluate Spectral Shapes) project aims to establish a novel technique to perform precision measurements of forbidden β-decays, which can serve as an important benchmark for ... -
Investigation of the Δn = 0 selection rule in Gamow-Teller transitions : The β-decay of 207Hg
Berry, T. A.; Podolyák, Zs.; Carroll, R. J.; Lică, R.; Grawe, H.; Timofeyuk, N. K.; Alexander, T.; Andreyev, A. N.; Ansari, S.; Borge, M. J. G.; Creswell, J.; Fynbo, H. O. U.; Gelletly, W.; Gerst, R.-B.; Górska, M.; Gredley, A.; Greenlees, Paul; Harkness-Brennan, L. J.; Huyse, M.; Judge, S. M.; Judson, D. S.; Konki, Joonas; Kurcewicz, J.; Kuti, I.; Lalkovski, S.; Lazarus, I.; Lund, M.; Madurga, M.; Mărginean, N.; Mărginean, R.; Marroquin, I.; Mihai, C.; Mihai, R. E.; Nácher, E.; Nae, S.; Negret, A.; Niţă, C.; Pascu, S.; Page, R. D.; Patel, Z.; Perea, A.; Pucknell, V.; Rahkila, Panu; Rapisarda, E.; Regan, P. H.; Rotaru, F.; Shand, C. M.; Simpson, E. C.; Sotty, Ch.; Stegemann, S.; Stora, T.; Tengblad, O.; Turturica, A.; Van Duppen, P.; Vedia, V.; Wadsworth, R.; Walker, P. M.; Warr, N.; Wearing, F.; De Witte, H. (Elsevier BV, 2019)Gamow-Teller β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn = 0 requirement plays a major role in the β decay of heavy neutron-rich nuclei, ... -
First Accurate Normalization of the β-delayed α Decay of 16N and Implications for the 12C(α,γ)16O Astrophysical Reaction Rate
Kirsebom, O. S.; Tengblad, O.; Lica, R.; Munch, M.; Riisager, K.; Fynbo, H. O. U.; Borge, M. J. G.; Madurga, M.; Marroquin, I.; Andreyev, A. N.; Berry, T. A.; Christensen, E. R.; Fernández, P. Díaz; Doherty, D. T.; Van Duppen, P.; Fraile, L. M.; Gallardo, M. C.; Greenlees, Paul; Harkness-Brennan, L. J.; Hubbard, N.; Huyse, M.; Jensen, J. H.; Johansson, H.; Jonson, B.; Judson, D. S.; Konki, Joonas; Lazarus, I.; Lund, M. V.; Marginean, N.; Marginean, R.; Perea, A.; Mihai, C.; Negret, A.; Page, R. D.; Pucknell, V.; Rahkila, Panu; Sorlin, O.; Sotty, C.; Swartz, J. A.; Sørensen, H. B.; Törnqvist, H.; Vedia, V.; Warr, N.; De Witte, H. (American Physical Society, 2018)The 12Cðα; γÞ16O reaction plays a central role in astrophysics, but its cross section at energies relevant for astrophysical applications is only poorly constrained by laboratory data. The reduced α width, γ11, of the ...