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$$B(E2;2^+_1rightarrow 0^+_1)$$ value in $$^{90}$$Kr

$$^{90}$$Krにおける$$B(E2;2^+_1rightarrow 0^+_1)$$

R$'e$gis, J.-M.*; Jolie, J.*; Saed-Samii, N.*; Warr, N.*; Pfeiffer, M.*; Blanc, A.*; Jentschel, M.*; K$"o$ster, U.*; Mutti, P.*; Soldner, T.*; Simpson, G. S.*; Drouet, F.*; Vancraeyenest, A.*; de France, G.*; Cl$'e$ment, E.*; Stezowski, O.*; Ur, C. A.*; Urban, W.*; Regan, P. H.*; Podoly$'a$k, Zs.*; Larijani, C.*; Townsley, C.*; Carroll, R.*; Wilson, E.*; Fraile, L. M.*; Mach, H.*; Paziy, V.*; Olaizola, B.*; Vedia, V.*; Bruce, A. M.*; Roberts, O. J.*; Smith, J. F.*; Kr$"o$ll, T.*; Hartig, A.-L.*; Ignatov, A.*; Ilieva, S.*; Th$"u$rauf, M.*; Lalkovski, S.*; Ivanova, D.*; Kisyov, S.*; Korten, W.*; Salsac, M.-D.*; Zieli$'n$ska, M.*; M$u{a}$rginean, N.*; Ghit$u{a}$, D. G.*; Lic$u{a}$, R.*; Petrache, C. M.*; Astier, A.*; L$'e$guillon, R.

R$'e$gis, J.-M.*; Jolie, J.*; Saed-Samii, N.*; Warr, N.*; Pfeiffer, M.*; Blanc, A.*; Jentschel, M.*; K$"o$ster, U.*; Mutti, P.*; Soldner, T.*; Simpson, G. S.*; Drouet, F.*; Vancraeyenest, A.*; de France, G.*; Cl$'e$ment, E.*; Stezowski, O.*; Ur, C. A.*; Urban, W.*; Regan, P. H.*; Podoly$'a$k, Zs.*; Larijani, C.*; Townsley, C.*; Carroll, R.*; Wilson, E.*; Fraile, L. M.*; Mach, H.*; Paziy, V.*; Olaizola, B.*; Vedia, V.*; Bruce, A. M.*; Roberts, O. J.*; Smith, J. F.*; Kr$"o$ll, T.*; Hartig, A.-L.*; Ignatov, A.*; Ilieva, S.*; Th$"u$rauf, M.*; Lalkovski, S.*; Ivanova, D.*; Kisyov, S.*; Korten, W.*; Salsac, M.-D.*; Zieli$'n$ska, M.*; M$u{a}$rginean, N.*; Ghit$u{a}$, D. G.*; Lic$u{a}$, R.*; Petrache, C. M.*; Astier, A.*; L$'e$guillon, R.

A smooth onset of collectivity in $$^{88,92,94,96}$$Kr has been determined from reported $$B(E2;2^+_1rightarrow 0^+_1)$$ and E(2$$^+_1$$) values. This is in contrast to the sudden onset in even-even Zr, Mo, and Sr isotopes. Our objective was to complete the systematics by determining the $$B(E2;2^+_1rightarrow 0^+_1)$$ value in $$^{90}$$Kr, which was produced by cold-neutron-induced fission of $$^{235}$$U. The lifetime of the 2$$^+_1$$ state in $$^{90}$$Kr was measured via the electronic $$gamma - gamma$$ timing technique using the EXILL and FATIMA spectrometers. Based on the measured mean lifetime of $$tau$$ = 15(10) ps, the $$B(E2;2^+_1rightarrow 0^+_1)$$ value of 13$$^{+26}_{-5}$$ W.u. in $$^{90}$$Kr is determined for the first time and the smooth onset of deformation in the even-even Kr isotopes beyond neutron number N=50 is confirmed.

発表言語

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English

掲載資料名

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Physical Review C

巻

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90

号

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6

ページ数

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p.067301_1 - 067301_4

発行年月

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2014/12

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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no keyword

特許データ

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PDF

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論文URL

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https://doi.org/10.1103/PhysRevC.90.067301

研究データの公開先DOI

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本成果にかかわる研究データのリンクです。

使用施設

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広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

InCites™

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パーセンタイル：79.51

分野：Physics, Nuclear

Altmetrics

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