Collectivity of the 2p-2h proton intruder band of Sn 116

C. M. Petrache; J. M. Régis; C. Andreoiu; M. Spieker; C. Michelagnoli; P. E. Garrett; A. Astier; E. Dupont; F. Garcia; S. Guo; G. Häfner; J. Jolie; F. Kandzia; V. Karayonchev; Y. H. Kim; L. Knafla; U. Köster; B. F. Lv; N. Marginean; C. Mihai; P. Mutti; K. Ortner; C. Porzio; S. Prill; N. Saed-Samii; W. Urban; J. R. Vanhoy; K. Whitmore; J. Wisniewski; S. W. Yates

doi:10.1103/PhysRevC.99.024303

Collectivity of the 2p-2h proton intruder band of Sn 116

C. M. Petrache, J. M. Régis, C. Andreoiu, M. Spieker, C. Michelagnoli, P. E. Garrett, A. Astier, E. Dupont, F. Garcia, S. Guo, G. Häfner, J. Jolie, F. Kandzia, V. Karayonchev, Y. H. Kim, L. Knafla, U. Köster, B. F. Lv, N. Marginean, C. MihaiP. Mutti, K. Ortner, C. Porzio, S. Prill, N. Saed-Samii, W. Urban, J. R. Vanhoy, K. Whitmore, J. Wisniewski, S. W. Yates

Chemistry

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17 Scopus citations

Abstract

The half-life of the 42+ state of the 2p-2h proton intruder band of Sn116 has been measured with the fast-timing technique. The lifetime of T1/2=29(10) ps leads to a transition probability BE2;42+→22+=40(13) Weisskopf units, which is in very good agreement with the large BE2;22+→03+ value measured previously and provides strong support for the 03+ state as the bandhead of the intruder configuration and for the shape coexistence in the semimagic Sn116 nucleus. IBM-2 calculations with mixing reproduce the experimental data very well, giving insight into the degree of mixing between the different states.

Original language	English
Article number	024303
Journal	Physical Review C
Volume	99
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.99.024303
State	Published - Feb 4 2019

Bibliographical note

Publisher Copyright:
© 2019 American Physical Society.

Funding

This research is supported by the Natural Sciences and Engineering Research Council of Canada and by the DFG (ZI 510/7-1), and by the National Science Foundation under Contract No. PHY-1565546 (NSCL).

Funders	Funder number
National Science Foundation (NSF)	1606890
Natural Sciences and Engineering Research Council of Canada
Deutsche Forschungsgemeinschaft	ZI 510/7-1

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.99.024303

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Petrache, C. M., Régis, J. M., Andreoiu, C., Spieker, M., Michelagnoli, C., Garrett, P. E., Astier, A., Dupont, E., Garcia, F., Guo, S., Häfner, G., Jolie, J., Kandzia, F., Karayonchev, V., Kim, Y. H., Knafla, L., Köster, U., Lv, B. F., Marginean, N., ... Yates, S. W. (2019). Collectivity of the 2p-2h proton intruder band of Sn 116. Physical Review C, 99(2), Article 024303. https://doi.org/10.1103/PhysRevC.99.024303

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title = "Collectivity of the 2p-2h proton intruder band of Sn 116",

abstract = "The half-life of the 42+ state of the 2p-2h proton intruder band of Sn116 has been measured with the fast-timing technique. The lifetime of T1/2=29(10) ps leads to a transition probability BE2;42+→22+=40(13) Weisskopf units, which is in very good agreement with the large BE2;22+→03+ value measured previously and provides strong support for the 03+ state as the bandhead of the intruder configuration and for the shape coexistence in the semimagic Sn116 nucleus. IBM-2 calculations with mixing reproduce the experimental data very well, giving insight into the degree of mixing between the different states.",

author = "Petrache, {C. M.} and R{\'e}gis, {J. M.} and C. Andreoiu and M. Spieker and C. Michelagnoli and Garrett, {P. E.} and A. Astier and E. Dupont and F. Garcia and S. Guo and G. H{\"a}fner and J. Jolie and F. Kandzia and V. Karayonchev and Kim, {Y. H.} and L. Knafla and U. K{\"o}ster and Lv, {B. F.} and N. Marginean and C. Mihai and P. Mutti and K. Ortner and C. Porzio and S. Prill and N. Saed-Samii and W. Urban and Vanhoy, {J. R.} and K. Whitmore and J. Wisniewski and Yates, {S. W.}",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

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Petrache, CM, Régis, JM, Andreoiu, C, Spieker, M, Michelagnoli, C, Garrett, PE, Astier, A, Dupont, E, Garcia, F, Guo, S, Häfner, G, Jolie, J, Kandzia, F, Karayonchev, V, Kim, YH, Knafla, L, Köster, U, Lv, BF, Marginean, N, Mihai, C, Mutti, P, Ortner, K, Porzio, C, Prill, S, Saed-Samii, N, Urban, W, Vanhoy, JR, Whitmore, K, Wisniewski, J & Yates, SW 2019, 'Collectivity of the 2p-2h proton intruder band of Sn 116', Physical Review C, vol. 99, no. 2, 024303. https://doi.org/10.1103/PhysRevC.99.024303

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AU - Petrache, C. M.

AU - Régis, J. M.

AU - Andreoiu, C.

AU - Spieker, M.

AU - Michelagnoli, C.

AU - Garrett, P. E.

AU - Astier, A.

AU - Dupont, E.

AU - Garcia, F.

AU - Guo, S.

AU - Häfner, G.

AU - Jolie, J.

AU - Kandzia, F.

AU - Karayonchev, V.

AU - Kim, Y. H.

AU - Knafla, L.

AU - Köster, U.

AU - Lv, B. F.

AU - Marginean, N.

AU - Mihai, C.

AU - Mutti, P.

AU - Ortner, K.

AU - Porzio, C.

AU - Prill, S.

AU - Saed-Samii, N.

AU - Urban, W.

AU - Vanhoy, J. R.

AU - Whitmore, K.

AU - Wisniewski, J.

AU - Yates, S. W.

PY - 2019/2/4

Y1 - 2019/2/4

N2 - The half-life of the 42+ state of the 2p-2h proton intruder band of Sn116 has been measured with the fast-timing technique. The lifetime of T1/2=29(10) ps leads to a transition probability BE2;42+→22+=40(13) Weisskopf units, which is in very good agreement with the large BE2;22+→03+ value measured previously and provides strong support for the 03+ state as the bandhead of the intruder configuration and for the shape coexistence in the semimagic Sn116 nucleus. IBM-2 calculations with mixing reproduce the experimental data very well, giving insight into the degree of mixing between the different states.

AB - The half-life of the 42+ state of the 2p-2h proton intruder band of Sn116 has been measured with the fast-timing technique. The lifetime of T1/2=29(10) ps leads to a transition probability BE2;42+→22+=40(13) Weisskopf units, which is in very good agreement with the large BE2;22+→03+ value measured previously and provides strong support for the 03+ state as the bandhead of the intruder configuration and for the shape coexistence in the semimagic Sn116 nucleus. IBM-2 calculations with mixing reproduce the experimental data very well, giving insight into the degree of mixing between the different states.

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Collectivity of the 2p-2h proton intruder band of Sn 116

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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