Two-Proton Radioactivity of Kr 67

T. Goigoux; P. Ascher; B. Blank; M. Gerbaux; J. Giovinazzo; S. Grévy; T. Kurtukian Nieto; C. Magron; P. Doornenbal; G. G. Kiss; S. Nishimura; P. A. Söderström; V. H. Phong; J. Wu; D. S. Ahn; N. Fukuda; N. Inabe; T. Kubo; S. Kubono; H. Sakurai; Y. Shimizu; T. Sumikama; H. Suzuki; H. Takeda; J. Agramunt; A. Algora; V. Guadilla; A. Montaner-Piza; A. I. Morales; S. E.A. Orrigo; B. Rubio; Y. Fujita; M. Tanaka; W. Gelletly; P. Aguilera; F. Molina; F. Diel; D. Lubos; G. De Angelis; D. Napoli; C. Borcea; A. Boso; R. B. Cakirli; E. Ganioglu; J. Chiba; D. Nishimura; H. Oikawa; Y. Takei; S. Yagi; K. Wimmer; G. De France; S. Go; B. A. Brown

doi:10.1103/PhysRevLett.117.162501

Two-Proton Radioactivity of Kr 67

T. Goigoux, P. Ascher, B. Blank, M. Gerbaux, J. Giovinazzo, S. Grévy, T. Kurtukian Nieto, C. Magron, P. Doornenbal, G. G. Kiss, S. Nishimura, P. A. Söderström, V. H. Phong, J. Wu, D. S. Ahn, N. Fukuda, N. Inabe, T. Kubo, S. Kubono, H. SakuraiY. Shimizu, T. Sumikama, H. Suzuki, H. Takeda, J. Agramunt, A. Algora, V. Guadilla, A. Montaner-Piza, A. I. Morales, S. E.A. Orrigo, B. Rubio, Y. Fujita, M. Tanaka, W. Gelletly, P. Aguilera, F. Molina, F. Diel, D. Lubos, G. De Angelis, D. Napoli, C. Borcea, A. Boso, R. B. Cakirli, E. Ganioglu, J. Chiba, D. Nishimura, H. Oikawa, Y. Takei, S. Yagi, K. Wimmer, G. De France, S. Go, B. A. Brown

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Abstract

In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from Kr67. At the same time, no evidence for 2p emission of Ge59 and Se63, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to Kr67 as being the best new candidate among the three for two-proton radioactivity. Kr67 is only the fourth 2p ground-state emitter to be observed with a half-life of the order of a few milliseconds. The decay energy was determined to be 1690(17) keV, the 2p emission branching ratio is 37(14)%, and the half-life of Kr67 is 7.4(30) ms.

Original language	English
Article number	162501
Journal	Physical Review Letters
Volume	117
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.117.162501 https://doi.org/10.1103/PhysRevLett.117.162501
Publication status	Published - 14 Oct 2016
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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Goigoux, T., Ascher, P., Blank, B., Gerbaux, M., Giovinazzo, J., Grévy, S., Kurtukian Nieto, T., Magron, C., Doornenbal, P., Kiss, G. G., Nishimura, S., Söderström, P. A., Phong, V. H., Wu, J., Ahn, D. S., Fukuda, N., Inabe, N., Kubo, T., Kubono, S., ... Brown, B. A. (2016). Two-Proton Radioactivity of Kr 67. Physical Review Letters, 117(16), Article 162501. https://doi.org/10.1103/PhysRevLett.117.162501, https://doi.org/10.1103/PhysRevLett.117.162501

@article{6e4e3a8b6d524f6b8ca320840109aa88,

title = "Two-Proton Radioactivity of Kr 67",

abstract = "In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from Kr67. At the same time, no evidence for 2p emission of Ge59 and Se63, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to Kr67 as being the best new candidate among the three for two-proton radioactivity. Kr67 is only the fourth 2p ground-state emitter to be observed with a half-life of the order of a few milliseconds. The decay energy was determined to be 1690(17) keV, the 2p emission branching ratio is 37(14)%, and the half-life of Kr67 is 7.4(30) ms.",

author = "T. Goigoux and P. Ascher and B. Blank and M. Gerbaux and J. Giovinazzo and S. Gr{\'e}vy and {Kurtukian Nieto}, T. and C. Magron and P. Doornenbal and Kiss, {G. G.} and S. Nishimura and S{\"o}derstr{\"o}m, {P. A.} and Phong, {V. H.} and J. Wu and Ahn, {D. S.} and N. Fukuda and N. Inabe and T. Kubo and S. Kubono and H. Sakurai and Y. Shimizu and T. Sumikama and H. Suzuki and H. Takeda and J. Agramunt and A. Algora and V. Guadilla and A. Montaner-Piza and Morales, {A. I.} and Orrigo, {S. E.A.} and B. Rubio and Y. Fujita and M. Tanaka and W. Gelletly and P. Aguilera and F. Molina and F. Diel and D. Lubos and {De Angelis}, G. and D. Napoli and C. Borcea and A. Boso and Cakirli, {R. B.} and E. Ganioglu and J. Chiba and D. Nishimura and H. Oikawa and Y. Takei and S. Yagi and K. Wimmer and {De France}, G. and S. Go and Brown, {B. A.}",

note = "Funding Information: This work was supported by the French-Japanese Laboratoire international associate FJ-NSP, by JSPS KAKENHI Grant No. 25247045, by the Istanbul University Scientific Project Unit under Project No. BYP-53195, by the Max-Planck Partner group and the Istanbul University Scientific Project Unit under Project No. YP-54135, by the NSF Grant No. PHY-1404442, by the UK Science and Technology Facilities Council (STFC) Grant No. ST/F012012/1, by the Japanese Society for the Promotion of Science under Grant No. 26 04808, by MEXT Japan under Grant No. 15K05104, and by the Spanish Ministerio de Economia y Competitividad under Grants No. FPA2011-24553 and No. FPA2014-52823-C2-1-P, Centro de Excelencia Severo Ochoa del IFIC SEV-2014-0398; Junta para la Ampliacion de Estudios Programme (CSIC JAE-Doc contract) cofinanced by FSE. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = oct,

day = "14",

doi = "10.1103/PhysRevLett.117.162501",

language = "English",

volume = "117",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "16",

}

Goigoux, T, Ascher, P, Blank, B, Gerbaux, M, Giovinazzo, J, Grévy, S, Kurtukian Nieto, T, Magron, C, Doornenbal, P, Kiss, GG, Nishimura, S, Söderström, PA, Phong, VH, Wu, J, Ahn, DS, Fukuda, N, Inabe, N, Kubo, T, Kubono, S, Sakurai, H, Shimizu, Y, Sumikama, T, Suzuki, H, Takeda, H, Agramunt, J, Algora, A, Guadilla, V, Montaner-Piza, A, Morales, AI, Orrigo, SEA, Rubio, B, Fujita, Y, Tanaka, M, Gelletly, W, Aguilera, P, Molina, F, Diel, F, Lubos, D, De Angelis, G, Napoli, D, Borcea, C, Boso, A, Cakirli, RB, Ganioglu, E, Chiba, J, Nishimura, D, Oikawa, H, Takei, Y, Yagi, S, Wimmer, K, De France, G, Go, S & Brown, BA 2016, 'Two-Proton Radioactivity of Kr 67', Physical Review Letters, vol. 117, no. 16, 162501. https://doi.org/10.1103/PhysRevLett.117.162501, https://doi.org/10.1103/PhysRevLett.117.162501

TY - JOUR

T1 - Two-Proton Radioactivity of Kr 67

AU - Goigoux, T.

AU - Ascher, P.

AU - Blank, B.

AU - Gerbaux, M.

AU - Giovinazzo, J.

AU - Grévy, S.

AU - Kurtukian Nieto, T.

AU - Magron, C.

AU - Doornenbal, P.

AU - Kiss, G. G.

AU - Nishimura, S.

AU - Söderström, P. A.

AU - Phong, V. H.

AU - Wu, J.

AU - Ahn, D. S.

AU - Fukuda, N.

AU - Inabe, N.

AU - Kubo, T.

AU - Kubono, S.

AU - Sakurai, H.

AU - Shimizu, Y.

AU - Sumikama, T.

AU - Suzuki, H.

AU - Takeda, H.

AU - Agramunt, J.

AU - Algora, A.

AU - Guadilla, V.

AU - Montaner-Piza, A.

AU - Morales, A. I.

AU - Orrigo, S. E.A.

AU - Rubio, B.

AU - Fujita, Y.

AU - Tanaka, M.

AU - Gelletly, W.

AU - Aguilera, P.

AU - Molina, F.

AU - Diel, F.

AU - Lubos, D.

AU - De Angelis, G.

AU - Napoli, D.

AU - Borcea, C.

AU - Boso, A.

AU - Cakirli, R. B.

AU - Ganioglu, E.

AU - Chiba, J.

AU - Nishimura, D.

AU - Oikawa, H.

AU - Takei, Y.

AU - Yagi, S.

AU - Wimmer, K.

AU - De France, G.

AU - Go, S.

AU - Brown, B. A.

N1 - Funding Information: This work was supported by the French-Japanese Laboratoire international associate FJ-NSP, by JSPS KAKENHI Grant No. 25247045, by the Istanbul University Scientific Project Unit under Project No. BYP-53195, by the Max-Planck Partner group and the Istanbul University Scientific Project Unit under Project No. YP-54135, by the NSF Grant No. PHY-1404442, by the UK Science and Technology Facilities Council (STFC) Grant No. ST/F012012/1, by the Japanese Society for the Promotion of Science under Grant No. 26 04808, by MEXT Japan under Grant No. 15K05104, and by the Spanish Ministerio de Economia y Competitividad under Grants No. FPA2011-24553 and No. FPA2014-52823-C2-1-P, Centro de Excelencia Severo Ochoa del IFIC SEV-2014-0398; Junta para la Ampliacion de Estudios Programme (CSIC JAE-Doc contract) cofinanced by FSE. Publisher Copyright: © 2016 American Physical Society.

PY - 2016/10/14

Y1 - 2016/10/14

N2 - In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from Kr67. At the same time, no evidence for 2p emission of Ge59 and Se63, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to Kr67 as being the best new candidate among the three for two-proton radioactivity. Kr67 is only the fourth 2p ground-state emitter to be observed with a half-life of the order of a few milliseconds. The decay energy was determined to be 1690(17) keV, the 2p emission branching ratio is 37(14)%, and the half-life of Kr67 is 7.4(30) ms.

AB - In an experiment with the BigRIPS separator at the RIKEN Nishina Center, we observed two-proton (2p) emission from Kr67. At the same time, no evidence for 2p emission of Ge59 and Se63, two other potential candidates for this exotic radioactivity, could be observed. This observation is in line with Q value predictions which pointed to Kr67 as being the best new candidate among the three for two-proton radioactivity. Kr67 is only the fourth 2p ground-state emitter to be observed with a half-life of the order of a few milliseconds. The decay energy was determined to be 1690(17) keV, the 2p emission branching ratio is 37(14)%, and the half-life of Kr67 is 7.4(30) ms.

UR - http://www.scopus.com/inward/record.url?scp=84992381825&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.117.162501

DO - 10.1103/PhysRevLett.117.162501

M3 - Article

AN - SCOPUS:84992381825

SN - 0031-9007

VL - 117

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 162501

ER -

Two-Proton Radioactivity of Kr 67

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