Superallowed Gamow-Teller decay of the doubly magic nucleus 100Sn

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MARC

Hinke, C. B.Physik Department E12, Technische Universität München, D-85748 Garching, Germany (author)

Superallowed Gamow-Teller decay of the doubly magic nucleus 100Sn

Article/chapterEnglish2012

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2012-06-20
Springer Science and Business Media LLC,2012
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LIBRIS-ID:oai:DiVA.org:uu-178596
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-178596URI
https://doi.org/10.1038/nature11116DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-268949URI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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QC 20200229
The shell structure of atomic nuclei is associated with 'magic numbers' and originates in the nearly independent motion of neutrons and protons in a mean potential generated by all nucleons. During beta(+)-decay, a proton transforms into a neutron in a previously not fully occupied orbital, emitting a positron-neutrino pair with either parallel or antiparallel spins, in a Gamow-Teller or Fermi transition, respectively. The transition probability, or strength, of a Gamow-Teller transition depends sensitively on the underlying shell structure and is usually distributed among many states in the neighbouring nucleus. Here we report measurements of the half-life and decay energy for the decay of Sn-100, the heaviest doubly magic nucleus with equal numbers of protons and neutrons. In the beta-decay of Sn-100, a large fraction of the strength is observable because of the large decay energy. We determine the largest Gamow-Teller strength so far measured in allowed nuclear beta-decay, establishing the 'superallowed' nature of this Gamow-Teller transition. The large strength and the low-energy states in the daughter nucleus, In-100, are well reproduced by modern, large-scale shell model calculations.

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NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng

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Boehmer, M. (author)
Boutachkov, P. (author)
Faestermann, T. (author)
Geissel, H. (author)
Gerl, J. (author)
Gernhaeuser, R. (author)
Gorska, M. (author)
Gottardo, A. (author)
Grawe, H. (author)
Grebosz, J. L. (author)
Kruecken, R. (author)
Kurz, N. (author)
Liu, Z. (author)
Maier, L. (author)
Nowacki, F. (author)
Pietri, S.Comenius University, 818 06 Bratislava 16, Slovakia (author)
Podolyak, Zs (author)
Sieja, K. (author)
Steiger, K. (author)
Straub, K. (author)
Weick, H. (author)
Wollersheim, H. -J (author)
Woods, P. J. (author)
Al-Dahan, N. (author)
Alkhomashi, N. (author)
Atac Nyberg, AysePhysics Department, Faculty of Science, Ankara University, 06100 Tandogan, Ankara, Turkey(Swepub:kth)u1vggxbc (author)
Blazhev, A. (author)
Braun, N. F. (author)
Celikovic, I. T. (author)
Davinson, T. (author)
Dillmann, I. (author)
Domingo-Pardo, C. (author)
Doornenbal, P. C. (author)
de France, G. (author)
Farrelly, G. F. (author)
Farinon, F. (author)
Goel, N. (author)
Habermann, T. C. (author)
Hoischen, R. (author)
Janik, R. (author)
Karny, M. (author)
Kaskas, A. (author)
Kojouharov, I. M. (author)
Kroell, Th (author)
Litvinov, Y. (author)
Myalski, S. (author)
Nebel, F. (author)
Nishimura, S. (author)
Nociforo, C. (author)
Nyberg, JohanUppsala universitet,Kärnfysik(Swepub:uu)johannb (author)
Parikh, A. R. (author)
Prochazka, A. (author)
Regan, P. H. (author)
Rigollet, C. (author)
Schaffner, H. (author)
Scheidenberger, C. (author)
Schwertel, S. (author)
Soederstroem, P. -A (author)
Steer, S. J. (author)
Stolz, A. (author)
Strmen, P. (author)
Physik Department E12, Technische Universität München, D-85748 Garching, GermanyComenius University, 818 06 Bratislava 16, Slovakia (creator_code:org_t)

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In:Nature: Springer Science and Business Media LLC486:7403, s. 341-3450028-08361476-4687

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By the author/editor: Hinke, C. B.; Boehmer, M.; Boutachkov, P.; Faestermann, T.; Geissel, H.; Gerl, J.; show more...; Gernhaeuser, R.; Gorska, M.; Gottardo, A.; Grawe, H.; Grebosz, J. L.; Kruecken, R.; Kurz, N.; Liu, Z.; Maier, L.; Nowacki, F.; Pietri, S.; Podolyak, Zs; Sieja, K.; Steiger, K.; Straub, K.; Weick, H.; Wollersheim, H. ...; Woods, P. J.; Al-Dahan, N.; Alkhomashi, N.; Atac Nyberg, Ays ...; Blazhev, A.; Braun, N. F.; Celikovic, I. T.; Davinson, T.; Dillmann, I.; Domingo-Pardo, C ...; Doornenbal, P. C ...; de France, G.; Farrelly, G. F.; Farinon, F.; Goel, N.; Habermann, T. C.; Hoischen, R.; Janik, R.; Karny, M.; Kaskas, A.; Kojouharov, I. M ...; Kroell, Th; Litvinov, Y.; Myalski, S.; Nebel, F.; Nishimura, S.; Nociforo, C.; Nyberg, Johan; Parikh, A. R.; Prochazka, A.; Regan, P. H.; Rigollet, C.; Schaffner, H.; Scheidenberger, ...; Schwertel, S.; Soederstroem, P. ...; Steer, S. J.; Stolz, A.; Strmen, P.; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...

Articles in the publication: Nature

By the university: Uppsala University; Royal Institute of Technology

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