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Coulomb excitation of Zn74,76
/ ISOLDE Collaboration
The first experiment using radioactive beams post-accelerated by the HIE-ISOLDE facility has enabled to obtain a precise set of B(E2) transition probabilities in neutron-rich Zn74,76 isotopes. The resulting B(E2; 21+→01+) values are consistent with those determined in earlier REX-ISOLDE measurements. [...]
2023 - 17 p.
- Published in : Phys. Rev. C 108 (2023) 044305
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2.
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Evolution of single-particle structure near the $N=20$ island of inversion
/ MacGregor, P T (Manchester U.) ; Sharp, D K (Manchester U.) ; Freeman, S J (Manchester U.) ; Hoffman, C R (Argonne, PHY) ; Kay, B P (Argonne, PHY) ; Tang, T L (Argonne, PHY) ; Gaffney, L P (Liverpool U. ; CERN) ; Baader, E F (CERN) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Butler, P A (Liverpool U.) et al.
The single-particle properties of $^{29}$Mg have been investigated via a measurement of the $^{28}$Mg(d,p) 29Mg reaction, in inverse kinematics, using the ISOLDE Solenoidal Spectrometer. The negative-parity intruder states from the f p shell have been identified and used to benchmark modern shell-model calculations. [...]
2021 - 7 p.
- Published in : Phys. Rev. C 104 (2021) L051301
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3.
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HI-TREX—A highly integrated transfer setup at REX-(HIE)ISOLDE
/ Berner, C (Munich, Tech. U.) ; Werner, L (Munich, Tech. U.) ; Gernhäuser, R (Munich, Tech. U.) ; Kröll, Th (Darmstadt, Tech. U.)
Transfer reactions are a unique tool to populate and probe the structure of nuclei. Due to its unprecedented capabilities in producing and accelerating exotic nuclei, the HIE-ISOLDE facility at CERN provides an excellent opportunity for transfer experiments using radioactive ion beams. [...]
2021 - 10 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 987 (2021) 164827
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4.
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Population of lead isotopes in binary reactions using a $^{94}$Rb radioactive beam
/ Čolović, P (Boskovic Inst., Zagreb) ; Szilner, S (Boskovic Inst., Zagreb) ; Illana, A (INFN, Legnaro) ; Valiente-Dobón, J J (INFN, Legnaro) ; Corradi, L (INFN, Legnaro) ; Pollarolo, G (Turin U. ; INFN, Turin) ; Mijatović, T (Boskovic Inst., Zagreb) ; Goasduff, A (INFN, Legnaro ; Padua U. ; INFN, Padua) ; Benzoni, G (Milan U. ; INFN, Milan) ; Borge, M J G (Madrid, Inst. Estructura Materia) et al.
We measured absolute cross sections for neutron transfer channels populated in the Rb94+Pb208 binary reaction. Cross sections have been extracted identifying directly the lead isotopes with the high efficiency MINIBALL γ-ray array coupled to a particle detector combined with a radioactive Rb94 beam delivered at Elab=6.2 MeV/nucleon by the HIE-ISOLDE facility. [...]
2020 - 8 p.
- Published in : Phys. Rev. C 102 (2020) 054609
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5.
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Restoring the valence-shell stabilization in $^{140}$Nd
/ Kern, R (Darmstadt, Tech. U.) ; Zidarova, R (Darmstadt, Tech. U. ; Sofiya U.) ; Pietralla, N (Darmstadt, GSI) ; Rainovski, G (Sofiya U.) ; Stegmann, R (Darmstadt, GSI) ; Blazhev, A (Cologne U.) ; Boukhari, A (CERN) ; Cederkäll, J (CERN ; Lund U. (main)) ; Cubiss, J G (York U., England) ; Djongolov, M (Sofiya U.) et al.
A projectile Coulomb-excitation experiment was performed at the radioactive-ion beam facility HIE-ISOLDE at CERN to obtain $E2$ and $M1$ transition matrix elements of $^{140}$Nd using the multistep Coulomb-excitation code GOSIA. The absolute $M1$ strengths, $\textrm{B}(M1;2^+_2→2^+_1)=0.033(8)μ^2_N,\textrm{B}(M1;2^+_3→2^+_1)=0.26^{+0.11}_{−0.10}μ^2_N$, and $\textrm{B}(M1;2^+_4→2^+_1)<0.04μ^2_{\textrm{N}}$, identify the $2^+_3$ state as the main fragment of the one-quadrupole-phonon proton-neutron mixed-symmetry state of $^{140}$Nd. [...]
2020 - 6 p.
- Published in : Phys. Rev. C 102 (2020) 041304
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6.
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The $d$($^{30}$Mg,$p$)$^{31}$Mg reaction: Probing single-particle behaviour within the “island of inversion”
/ Sharp, DK (The University of Manchester) ; Freeman, SJ (The University of Manchester) ; Butler, PA (University of Liverpool) ; Catford, WN (University of Surrey) ; Ceulemans, A (KU Leuven) ; Gaffney, LP (University of Liverpool) ; Hoffman, CR (Argonne National Laboratory) ; Janssens, RVF (University of North Carolina and Duke University) ; Kay, BP (Argonne National Laboratory) ; Kitamura, N (The University of Tokyo) et al.
CERN-INTC-2020-060 ; INTC-P-576.
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2020.
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7.
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Microscopic structure of coexisting $0^+$ states in $^{68}$Ni probed via two-neutron transfer
/ Flavigny, F (Orsay, IPN ; KU Leuven, Dept. Phys. Astron.) ; Elseviers, J (KU Leuven, Dept. Phys. Astron.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Bauer, C (Darmstadt, Tech. Hochsch.) ; Bildstein, V (Guelph U.) ; Blazhev, A (Cologne U.) ; Brown, B A (Michigan State U., NSCL) ; De Witte, H (KU Leuven, Dept. Phys. Astron.) ; Diriken, J (KU Leuven, Dept. Phys. Astron. ; SCK-CEN, Mol) ; Fedosseev, V N (CERN) et al.
The structure of low-spin states originating from shape-coexisting configurations in $^{68}_{40}$Ni$_{28}$ was directly probed via the two-neutron transfer reaction $^{66}$Ni$(t,p)^{68}$Ni in inverse kinematics using a radioactive ion beam on a radioactive target. The direct feeding to the first excited 0$^+$ state was measured for center-of-mass angles 4°–16° and amounts to an integral of 4.2(16)% relative to the ground state. [...]
2019 - 6 p.
- Published in : Phys. Rev. C 99 (2019) 054332
Article from SCOAP3: PDF;
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8.
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Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of $^{182}$Hg, $^{184}$Hg, $^{186}$Hg and $^{188}$Hg
/ Wrzosek-Lipska, K (Warsaw U., Heavy Ion Lab ; Leuven U.) ; Rezynkina, K (Leuven U. ; U. Strasbourg) ; Bree, N (Leuven U.) ; Zielińska, M (Warsaw U., Heavy Ion Lab ; IRFU, Saclay) ; Gaffney, L P (Liverpool U. ; Leuven U. ; CERN ; West Scotland U.) ; Petts, A (Liverpool U.) ; Andreyev, A (Leuven U. ; York U., England) ; Bastin, B (Leuven U. ; GANIL) ; Bender, M (Lyon, IPN) ; Blazhev, A (Cologne U.) et al.
The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass $^{182-188}$ Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. [...]
2019 - 23 p.
- Published in : Eur. Phys. J. A 55 (2019) 130
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9.
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Coulomb Excitation of $^{142}$Xe
/ Henrich, C (Darmstadt, Tech. U.) ; Kröll, Th (Darmstadt, Tech. U.) ; Arnswald, K (Cologne U.) ; Berger, C (Munich, Tech. U.) ; Berner, C (Munich, Tech. U.) ; Berry, T (Surrey U.) ; Bildstein, V (Guelph U.) ; Cederkäll, J (Lund U. (main)) ; Cox, D (Jyvaskyla U.) ; de Angelis, G (INFN, Legnaro) et al.
The even–even nucleus $^{142}$Xe lies north-east of the doubly magic $^{132}$Sn on the neutron-rich side of the nuclear chart. In order to gain further information on the octupole collectivity and the evolution of quadrupole collectivity in this region, a “safe” Coulomb excitation experiment was carried out at the new HIE-ISOLDE facility (CERN) at the end of 2016. [...]
2018 - 5 p.
- Published in : Acta Phys. Pol. B 49 (2018) 529-533
Fulltext: PDF;
In : 35th Mazurian Lakes Conference on Physics : Exotic Nuclei : Laboratories for Fundamental Laws of Nature, Piaski, Poland, 3 - 9 Sep 2017, pp.529-533
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10.
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Enhanced Quadrupole and Octupole Strength in Doubly Magic $^{132}$Sn
/ Rosiak, D. (Cologne U.) ; Seidlitz, M. (Cologne U.) ; Reiter, P. (Cologne U.) ; Naïdja, H. (Constantine U. ; Strasbourg, IPHC) ; Tsunoda, Y. (Tokyo U., CNS) ; Togashi, T. (Tokyo U., CNS) ; Nowacki, F. (Strasbourg, IPHC) ; Otsuka, T. (Michigan State U., NSCL ; KU Leuven, Dept. Phys. Astron. ; Tokyo U., CNS ; Tokyo U.) ; Colò, G. (INFN, Milan ; Milan U.) ; Arnswald, K. (Cologne U.) et al.
/MINIBALL ; HIE-ISOLDE
The first $2^+$ and $3^-$ states of the doubly magic nucleus $^{132}$Sn are populated via safe Coulomb excitation employing the recently commissioned HIE-ISOLDE accelerator at CERN in conjunction with the highly efficient MINIBALL array. The $^{132}$Sn ions are accelerated to an energy of 5.49 MeV/nucleon and impinged on a $^{206}$Pb target. [...]
2018-12-18 - 6 p.
- Published in : 10.1103/PhysRevLett.121.252501
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