Collective 2+1 excitations in 206Po and 208,210Rn

T. Grahn; J. Pakarinen; L. Jokiniemi; M. Albers; K. Auranen; C. Bauer; C. Bernards; A. Blazhev; P. A. Butler; S. Boenig; A. Damvanova; T. De Coster; H. De Witte; J. Elseviers; L. P. Gaffney; M. Huyse; A. Herzan; U. Jakobsson; R. Julin; N. Kesteloot; J. Konki; Th. Kroell; L. Lewandowski; K. Moschner; P. Peura; M. Pfeiffer; D. Radeck; P. Rahkila; E. Rapisarda; P. Reiter; K. Reynders; M. Ruediger; M. -D. Salsac; S. Sambi; Marcus Scheck; M. Seidlitz; B. Siebeck; T. Steinbach; S. Stolze; J. Suhonen; P. Thoele; M. Thuerauf; N. Warr; P. Van Duppen; M. Venhart; M. J. Vermeulen; V. Werner; M. Veselsky; A. Vogt; K. Wrzosek-Lipska; M. Zielinska

doi:10.1140/epja/i2016-16340-6

Collective 2⁺₁ excitations in ²⁰⁶Po and ^208,210Rn

T. Grahn, J. Pakarinen, L. Jokiniemi, M. Albers, K. Auranen, C. Bauer, C. Bernards, A. Blazhev, P. A. Butler, S. Boenig, A. Damvanova, T. De Coster, H. De Witte, J. Elseviers, L. P. Gaffney, M. Huyse, A. Herzan, U. Jakobsson, R. Julin, N. KestelootJ. Konki, Th. Kroell, L. Lewandowski, K. Moschner, P. Peura, M. Pfeiffer, D. Radeck, P. Rahkila, E. Rapisarda, P. Reiter, K. Reynders, M. Ruediger, M. -D. Salsac, S. Sambi, Marcus Scheck, M. Seidlitz, B. Siebeck, T. Steinbach, S. Stolze, J. Suhonen, P. Thoele, M. Thuerauf, N. Warr, P. Van Duppen, M. Venhart, M. J. Vermeulen, V. Werner, M. Veselsky, A. Vogt, K. Wrzosek-Lipska, M. Zielinska

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Abstract

In the present study, B(E2; 2⁺₁ → 0⁺₁) values have been measured in the ^208,210Rn and ²⁰⁶Po nuclei through Coulomb excitation of re-accelerated radioactive beams in inverse kinematics at CERN-ISOLDE. These nuclei have been proposed to lie in, or at the boundary of the region where the seniority scheme should persist. However, contributions from collective excitations are likely to be present when moving away from the N=126 closed shell. Such an effect is confirmed by the observed increased collectivity of the 2⁺₁ → 0⁺₁ transitions. Experimental results have been interpreted with the aid of theoretical studies carried out within the BCS-based QRPA framework.

Original language	English
Pages (from-to)	340
Journal	European Physical Journal A
Volume	52
Early online date	22 Nov 2016
DOIs	https://doi.org/10.1140/epja/i2016-16340-6
Publication status	E-pub ahead of print - 22 Nov 2016

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2016 10 25 Grahn et al Collective acceptedAccepted author manuscript, 808 KBLicence: CC BY-NC-ND

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Grahn, T., Pakarinen, J., Jokiniemi, L., Albers, M., Auranen, K., Bauer, C., Bernards, C., Blazhev, A., Butler, P. A., Boenig, S., Damvanova, A., De Coster, T., De Witte, H., Elseviers, J., Gaffney, L. P., Huyse, M., Herzan, A., Jakobsson, U., Julin, R., ... Zielinska, M. (2016). Collective 2⁺₁ excitations in ²⁰⁶Po and ^208,210Rn. European Physical Journal A, 52, 340. Advance online publication. https://doi.org/10.1140/epja/i2016-16340-6

@article{e318746bd1b340ce988484d5e661f267,

title = "Collective 2+1 excitations in 206Po and 208,210Rn",

abstract = "In the present study, B(E2; 2+1 → 0+1) values have been measured in the 208,210Rn and 206Po nuclei through Coulomb excitation of re-accelerated radioactive beams in inverse kinematics at CERN-ISOLDE. These nuclei have been proposed to lie in, or at the boundary of the region where the seniority scheme should persist. However, contributions from collective excitations are likely to be present when moving away from the N=126 closed shell. Such an effect is confirmed by the observed increased collectivity of the 2+1 → 0+1 transitions. Experimental results have been interpreted with the aid of theoretical studies carried out within the BCS-based QRPA framework.",

author = "T. Grahn and J. Pakarinen and L. Jokiniemi and M. Albers and K. Auranen and C. Bauer and C. Bernards and A. Blazhev and Butler, {P. A.} and S. Boenig and A. Damvanova and {De Coster}, T. and {De Witte}, H. and J. Elseviers and Gaffney, {L. P.} and M. Huyse and A. Herzan and U. Jakobsson and R. Julin and N. Kesteloot and J. Konki and Th. Kroell and L. Lewandowski and K. Moschner and P. Peura and M. Pfeiffer and D. Radeck and P. Rahkila and E. Rapisarda and P. Reiter and K. Reynders and M. Ruediger and Salsac, {M. -D.} and S. Sambi and Marcus Scheck and M. Seidlitz and B. Siebeck and T. Steinbach and S. Stolze and J. Suhonen and P. Thoele and M. Thuerauf and N. Warr and {Van Duppen}, P. and M. Venhart and Vermeulen, {M. J.} and V. Werner and M. Veselsky and A. Vogt and K. Wrzosek-Lipska and M. Zielinska",

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Grahn, T, Pakarinen, J, Jokiniemi, L, Albers, M, Auranen, K, Bauer, C, Bernards, C, Blazhev, A, Butler, PA, Boenig, S, Damvanova, A, De Coster, T, De Witte, H, Elseviers, J, Gaffney, LP, Huyse, M, Herzan, A, Jakobsson, U, Julin, R, Kesteloot, N, Konki, J, Kroell, T, Lewandowski, L, Moschner, K, Peura, P, Pfeiffer, M, Radeck, D, Rahkila, P, Rapisarda, E, Reiter, P, Reynders, K, Ruediger, M, Salsac, M-D, Sambi, S, Scheck, M, Seidlitz, M, Siebeck, B, Steinbach, T, Stolze, S, Suhonen, J, Thoele, P, Thuerauf, M, Warr, N, Van Duppen, P, Venhart, M, Vermeulen, MJ, Werner, V, Veselsky, M, Vogt, A, Wrzosek-Lipska, K & Zielinska, M 2016, 'Collective 2⁺₁ excitations in ²⁰⁶Po and ^208,210Rn', European Physical Journal A, vol. 52, pp. 340. https://doi.org/10.1140/epja/i2016-16340-6

TY - JOUR

T1 - Collective 2+1 excitations in 206Po and 208,210Rn

AU - Grahn, T.

AU - Pakarinen, J.

AU - Jokiniemi, L.

AU - Albers, M.

AU - Auranen, K.

AU - Bauer, C.

AU - Bernards, C.

AU - Blazhev, A.

AU - Butler, P. A.

AU - Boenig, S.

AU - Damvanova, A.

AU - De Coster, T.

AU - De Witte, H.

AU - Elseviers, J.

AU - Gaffney, L. P.

AU - Huyse, M.

AU - Herzan, A.

AU - Jakobsson, U.

AU - Julin, R.

AU - Kesteloot, N.

AU - Konki, J.

AU - Kroell, Th.

AU - Lewandowski, L.

AU - Moschner, K.

AU - Peura, P.

AU - Pfeiffer, M.

AU - Radeck, D.

AU - Rahkila, P.

AU - Rapisarda, E.

AU - Reiter, P.

AU - Reynders, K.

AU - Ruediger, M.

AU - Salsac, M. -D.

AU - Sambi, S.

AU - Scheck, Marcus

AU - Seidlitz, M.

AU - Siebeck, B.

AU - Steinbach, T.

AU - Stolze, S.

AU - Suhonen, J.

AU - Thoele, P.

AU - Thuerauf, M.

AU - Warr, N.

AU - Van Duppen, P.

AU - Venhart, M.

AU - Vermeulen, M. J.

AU - Werner, V.

AU - Veselsky, M.

AU - Vogt, A.

AU - Wrzosek-Lipska, K.

AU - Zielinska, M.

N1 - 12 months embargo

PY - 2016/11/22

Y1 - 2016/11/22

N2 - In the present study, B(E2; 2+1 → 0+1) values have been measured in the 208,210Rn and 206Po nuclei through Coulomb excitation of re-accelerated radioactive beams in inverse kinematics at CERN-ISOLDE. These nuclei have been proposed to lie in, or at the boundary of the region where the seniority scheme should persist. However, contributions from collective excitations are likely to be present when moving away from the N=126 closed shell. Such an effect is confirmed by the observed increased collectivity of the 2+1 → 0+1 transitions. Experimental results have been interpreted with the aid of theoretical studies carried out within the BCS-based QRPA framework.

AB - In the present study, B(E2; 2+1 → 0+1) values have been measured in the 208,210Rn and 206Po nuclei through Coulomb excitation of re-accelerated radioactive beams in inverse kinematics at CERN-ISOLDE. These nuclei have been proposed to lie in, or at the boundary of the region where the seniority scheme should persist. However, contributions from collective excitations are likely to be present when moving away from the N=126 closed shell. Such an effect is confirmed by the observed increased collectivity of the 2+1 → 0+1 transitions. Experimental results have been interpreted with the aid of theoretical studies carried out within the BCS-based QRPA framework.

U2 - 10.1140/epja/i2016-16340-6

DO - 10.1140/epja/i2016-16340-6

M3 - Article

SN - 1434-6001

VL - 52

SP - 340

JO - European Physical Journal A

JF - European Physical Journal A

ER -

Collective 2+1 excitations in 206Po and 208,210Rn

Abstract

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Collective 2⁺₁ excitations in ²⁰⁶Po and ^208,210Rn