Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure

Joakim Cederkäll; Andreas Ekström; Claes Fahlander; A. M. Hurst; M. Hjorth-Jensen; F. Ames; A. Banu; P. A. Butler; T. Davinson; U. Datta Pramanik; J. Eberth; S. Franchoo; G. Georgiev; M. Gorska; D. Habs; M. Huyse; O. Ivanov; J. Iwanicki; O. Kester; U. Koester; B. A. Marsh; O. Niedermaier; T. Nilsson; P. Reiter; H. Scheit; D. Schwalm; T. Sieber; G. Sletten; I. Stefanescu; J. Van de Walle; P. Van Duppen; N. Warr; D. Weisshaar; F. Wenander

doi:10.1103/PhysRevLett.98.172501

Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure

Joakim Cederkäll, Andreas Ekström, Claes Fahlander, A. M. Hurst, M. Hjorth-Jensen, F. Ames, A. Banu, P. A. Butler, T. Davinson, U. Datta Pramanik, J. Eberth, S. Franchoo, G. Georgiev, M. Gorska, D. Habs, M. Huyse, O. Ivanov, J. Iwanicki, O. Kester, U. KoesterB. A. Marsh, O. Niedermaier, T. Nilsson, P. Reiter, H. Scheit, D. Schwalm, T. Sieber, G. Sletten, I. Stefanescu, J. Van de Walle, P. Van Duppen, N. Warr, D. Weisshaar, F. Wenander

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Abstract

The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached.

Original language	English
Journal	Physical Review Letters
Volume	98
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.98.172501
Publication status	Published - 2007

Subject classification (UKÄ)

Subatomic Physics

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10.1103/PhysRevLett.98.172501

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Cederkäll, J., Ekström, A., Fahlander, C., Hurst, A. M., Hjorth-Jensen, M., Ames, F., Banu, A., Butler, P. A., Davinson, T., Datta Pramanik, U., Eberth, J., Franchoo, S., Georgiev, G., Gorska, M., Habs, D., Huyse, M., Ivanov, O., Iwanicki, J., Kester, O., ... Wenander, F. (2007). Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure. Physical Review Letters, 98(17). https://doi.org/10.1103/PhysRevLett.98.172501

@article{70ba045257d6450d8db7a7b78338a67a,

title = "Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure",

abstract = "The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached.",

author = "Joakim Cederk{\"a}ll and Andreas Ekstr{\"o}m and Claes Fahlander and Hurst, {A. M.} and M. Hjorth-Jensen and F. Ames and A. Banu and Butler, {P. A.} and T. Davinson and {Datta Pramanik}, U. and J. Eberth and S. Franchoo and G. Georgiev and M. Gorska and D. Habs and M. Huyse and O. Ivanov and J. Iwanicki and O. Kester and U. Koester and Marsh, {B. A.} and O. Niedermaier and T. Nilsson and P. Reiter and H. Scheit and D. Schwalm and T. Sieber and G. Sletten and I. Stefanescu and {de Walle}, {J. Van} and {Van Duppen}, P. and N. Warr and D. Weisshaar and F. Wenander",

year = "2007",

doi = "10.1103/PhysRevLett.98.172501",

language = "English",

volume = "98",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "17",

}

Cederkäll, J, Ekström, A, Fahlander, C, Hurst, AM, Hjorth-Jensen, M, Ames, F, Banu, A, Butler, PA, Davinson, T, Datta Pramanik, U, Eberth, J, Franchoo, S, Georgiev, G, Gorska, M, Habs, D, Huyse, M, Ivanov, O, Iwanicki, J, Kester, O, Koester, U, Marsh, BA, Niedermaier, O, Nilsson, T, Reiter, P, Scheit, H, Schwalm, D, Sieber, T, Sletten, G, Stefanescu, I, de Walle, JV, Van Duppen, P, Warr, N, Weisshaar, D & Wenander, F 2007, 'Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure', Physical Review Letters, vol. 98, no. 17. https://doi.org/10.1103/PhysRevLett.98.172501

TY - JOUR

T1 - Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure

AU - Cederkäll, Joakim

AU - Ekström, Andreas

AU - Fahlander, Claes

AU - Hurst, A. M.

AU - Hjorth-Jensen, M.

AU - Ames, F.

AU - Banu, A.

AU - Butler, P. A.

AU - Davinson, T.

AU - Datta Pramanik, U.

AU - Eberth, J.

AU - Franchoo, S.

AU - Georgiev, G.

AU - Gorska, M.

AU - Habs, D.

AU - Huyse, M.

AU - Ivanov, O.

AU - Iwanicki, J.

AU - Kester, O.

AU - Koester, U.

AU - Marsh, B. A.

AU - Niedermaier, O.

AU - Nilsson, T.

AU - Reiter, P.

AU - Scheit, H.

AU - Schwalm, D.

AU - Sieber, T.

AU - Sletten, G.

AU - Stefanescu, I.

AU - de Walle, J. Van

AU - Van Duppen, P.

AU - Warr, N.

AU - Weisshaar, D.

AU - Wenander, F.

PY - 2007

Y1 - 2007

N2 - The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached.

AB - The first excited 2(+) state of the unstable isotope Sn-110 has been studied in safe Coulomb excitation at 2.82 MeV/u using the MINIBALL array at the REX-ISOLDE post accelerator at CERN. This is the first measurement of the reduced transition probability of this state using this method for a neutron deficient Sn isotope. The strength of the approach lies in the excellent peak-to-background ratio that is achieved. The extracted reduced transition probability, B(E2 : 0(+) -> 2(+)) 0.220 +/- 0.022e(2) b(2), strengthens the observation of the evolution of the B(E2) values of neutron deficient Sn isotopes that was observed recently in intermediate-energy Coulomb excitation of Sn-108. It implies that the trend of these reduced transition probabilities in the even-even Sn isotopes is not symmetric with respect to the midshell mass number A = 116 as Sn-100 is approached.

U2 - 10.1103/PhysRevLett.98.172501

DO - 10.1103/PhysRevLett.98.172501

M3 - Article

SN - 1079-7114

VL - 98

JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

ER -

Sub-barrier Coulomb excitation of Sn-110 and its implications for the Sn-100 shell closure

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