Nanosecond-Scale Proton Emission from Strongly Oblate-Deformed 149Lu
Auranen, K., Briscoe, A. D., Ferreira, L. S., Grahn, T., Greenlees, P. T., Herzáň, A., Illana, A., Joss, D. T., Joukainen, H., Julin, R., Jutila, H., Leino, M., Louko, J., Luoma, M., Maglione, E., Ojala, J., Page, R. D., Pakarinen, J., Rahkila, P., . . . Zimba, G. (2022). Nanosecond-Scale Proton Emission from Strongly Oblate-Deformed 149Lu. Physical Review Letters, 128(11), Article 112501. https://doi.org/10.1103/PhysRevLett.128.112501
Published in
Physical Review LettersAuthors
Date
2022Copyright
© 2022 American Physical Society
Using the fusion-evaporation reaction 96Ru(58Ni,p4n)149Lu and the MARA vacuum-mode recoil separator, a new proton-emitting isotope 149Lu has been identified. The measured decay Q value of 1920(20) keV is the highest measured for a ground-state proton decay, and it naturally leads to the shortest directly measured half-life of 450+170−100 ns for a ground-state proton emitter. The decay rate is consistent with lp=5 emission, suggesting a dominant πh11/2 component for the wave function of the proton-emitting state. Through nonadiabatic quasiparticle calculations it was concluded that 149Lu is the most oblate deformed proton emitter observed to date.
Publisher
American Physical Society (APS)ISSN Search the Publication Forum
0031-9007Keywords
Dataset(s) related to the publication
Auranen, Kalle; Briscoe, Andrew; Pakarinen, Janne; Greenlees, Paul; Julin, Rauno; Leino, Matti; Romero Fernández, Jorge; Uusitalo, Juha; Grahn, Tuomas; Sandzelius, Mikael; Rahkila, Panu; Ojala, Joonas et al. (2023). JYFL-ACCLAB-JM14 Oblate-deformed proton emitter 149Lu. V. 26.10.2020. University of Jyväskylä. https://doi.org/10.23729/65298853-0ec8-4728-a981-8b44bad7c467.Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/145705561
Metadata
Show full item recordCollections
Related funder(s)
Research Council of FinlandFunding program(s)
Postdoctoral Researcher, AoFAdditional information about funding
This work was supported by the Academy of Finland under the Contract No. 323710 (Personal research project, K. A.). R. D. P. and D. T. J. acknowledge support of the Science and Technology Facilities Council, UK. A. H. would like to thank the Slovak Research and Development Agency under Contract No. APVV-20-0532, and Slovak grant agency VEGA (Contract No. 2/0067/21).License
Related items
Showing items with similar title or keywords.
-
Observation of the proton emitter 116,57La59
Zhang, Wei; Cederwall, Bo; Aktas, Özge; Liu, Xiaoyu; Ertoprak, Aysegül; Nyberg, Ayse; Auranen, Kalle; Alayed, Betool; Badran, Hussam; Boston, Helen; Doncel, Maria; Forsberg, Ulrika; Grahn, Tuomas; Greenlees, Paul T.; Guo, Song; Heery, Jacob; Hilton, Joshua; Jenkins, David; Julin, Rauno; Juutinen, Sakari; Luoma, Minna; Neuvonen, Olavi; Ojala, Joonas; Page, Robert D.; Pakarinen, Janne; Partanen, Jari; Paul, Edward S.; Petrache, Costel; Rahkila, Panu; Ruotsalainen, Panu; Sandzelius, Mikael; Sarén, Jan; Szwec, Stuart; Tann, Holly; Uusitalo, Juha; Wadsworth, Robert (Nature Publishing Group, 2022)The quantum tunneling and emission of a single constituent nucleon provide a beautifully simple and unique window into the complex properties of atomic nuclei at the extreme edge of nuclear existence. In particular, for ... -
Test of JYUTube as a veto detector at MARA for background suppression in nuclear spectroscopy beyond the proton drip line
Sottili, Leandro (2018)At JYFL-ACCLAB a Mass Analysing Recoil Apparatus (MARA) was built to per- form nuclear spectroscopy of exotic nuclei with N=Z in the region A∼80 created via fusion evaporation reactions at low energies (3-6 MeV/u). Fusion ... -
Study of xT scaling in proton-proton collisions measured by the ALICE experiment
Pohjoisaho, Esko (2012)In this Master's Thesis an analysis of proton proton data measured by the ALICE (A Large Ion Collider Experiment) Collaboration at center-of-mass energies 7 TeV and 2.76 TeV is presented. The ALICE detector is located at ... -
Elucidating the nature of the proton radioactivity and branching ratio on the first proton emitter discovered 53mCo
Sarmiento, Luis G.; Roger, Thomas; Giovinazzo, Jérôme; Brown, B. Alex; Blank, Bertram; Rudolph, Dirk; Kankainen, Anu; Alvarez-Pol, Héctor; Arokia Raj, Alex; Ascher, Pauline; Block, Michael; Caamaño-Fresco, Manuel; Caceres, Lucia; Canete, Laetitia; Cox, Daniel M.; Eronen, Tommi; Fahlander, Claes; Fernández-Domínguez, Beatriz; Forsberg, Ulrika; Lois-Fuentes, Juan; Gerbaux, Mathias; Gerl, Jürgen; Golubev, Pavel; Grévy, Stéphane; Grinyer, Gwen F.; Habermann, Tobias; Hakala, Jani; Jokinen, Ari; Kamalou, Omar; Kojouharov, Ivan; Kolhinen, Veli S.; Koponen, Jukka; Kurz, Nikolaus; Lalović, Nataša; Lorenz, Christian; Mauss, Benoit; Mentana, Alice; Moore, Iain D.; Ortega, Moral Aurora; Pancin, Julien; Papadakis, Philippos; Pibernat, Jérôme; Piot, Julien; Pohjalainen, Ilkka; Reinikainen, Juuso; Rinta-Antila, Sami; Schaffner, Henning; Sorlin, Olivier; Stodel, Christelle; Thomas, Jean-Charles; Versteegen, Maud; Voss, Annika (Springer Nature, 2023)The observation of a weak proton-emission branch in the decay of the 3174-keV 53mCo isomeric state marked the discovery of proton radioactivity in atomic nuclei in 1970. Here we show, based on the partial half-lives and ... -
First determination of β-delayed multiple neutron emission beyond A = 100 through direct neutron measurement : The P2n value of 136Sb
Caballero-Folch, R.; Dillmann, I.; Agramunt, J.; Taín, J. L.; Algora, A.; Äystö, Juha; Calviño, F.; Canete, Laetitia; Cortès, G.; Domingo-Pardo, C.; Eronen, Tommi; Ganioglu, E.; Gelletly, W.; Gorelov, Dmitry; Guadilla, V.; Hakala, Jani; Jokinen, Ari; Kankainen, Anu; Kolhinen, Veli; Koponen, Jukka; Marta, M.; Mendoza, E.; Montaner-Pizá, A.; Moore, Iain; Nobs, C. R.; Orrigo, S. E. A.; Penttilä, Heikki; Pohjalainen, Ilkka; Reinikainen, Juuso; Riego, A.; Rinta-Antila, Sami; Rubio, B.; Salvador-Castiñeira, P.; Simutkin, Vasily; Tarifeño-Saldivia, A.; Tolosa-Delgado, A.; Voss, Annika (American Physical Society, 2018)Background: β-delayed multiple neutron emission has been observed for some nuclei with A≤100, being the Rb100 the heaviest β2n emitter measured to date. So far, only 25P2n values have been determined for the ≈300 nuclei ...