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Evolution of nuclear structure in the neutron-rich Nb96,97,99 isotopes: Evidence for shape coexistence in N=58Nb99
/ Kumar, V (West Scotland U. ; Strathclyde U.) ; Chapman, R (West Scotland U. ; Strathclyde U.) ; O'Donnell, D (West Scotland U. ; Strathclyde U.) ; Ollier, J (West Scotland U. ; Strathclyde U.) ; Orlandi, R (JAEA, Ibaraki) ; Smith, J F (West Scotland U. ; Strathclyde U.) ; Spohr, K -M (West Scotland U. ; Strathclyde U.) ; Torres, D A (West Scotland U. ; Strathclyde U.) ; Wady, P (West Scotland U. ; Strathclyde U.) ; Tandel, S K (Shiv Nadar U.) et al.
Excited states of the neutron-rich niobium isotopes Nb96,97,98,4196,97,98,99 have been populated in two experiments which used fusion-fission and multinucleon binary grazing reactions to populate high-spin yrast states. In the multinucleon-transfer experiment, a 530-MeV beam of Zr96 ions was incident on a thin Sn124 target; projectile-like ejectiles were detected and identified using the PRISMA magnetic spectrometer and the associated γ rays were detected using the CLARA array of Ge detectors. [...]
2023 - 19 p.
- Published in : Phys. Rev. C 108 (2023) 044313
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An innovative Superconducting Recoil Separator for HIE-ISOLDE
/ Martel, I (Huelva U.) ; Acosta, L (Mexico U.) ; Aguado, J L (Huelva U.) ; Assie, M (IJCLab, Orsay) ; Al-Aqeel, M A M (Liverpool U. ; Bucharest, IFIN-HH) ; Ballarino, A (CERN) ; Barna, D (Wigner RCP, Budapest) ; Berjillos, R (Huelva U.) ; Bonora, M (CERN) ; Bontoiu, C (Liverpool U.) et al.
The ISOLDE Scientific Infrastructure at CERN offers a unique range of post-accelerated radioactive beams. The scientific program can be improved with the “Isolde Superconducting Recoil Separator” (ISRS), an innovative spectrometer able to deliver unprecedented (A, Z) resolution. [...]
2023 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 541 (2023) 176-179
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In : 19th International Conference on Electromagnetic Isotope Separators and Related Topics (EMIS 2022), Daejeon, Korea, 3 - 7 Oct 2022, pp.176-179
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3.
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Coulomb excitation of pear-shaped nuclei
/ Butler, Peter (Liverpool U.) ; Gaffney, Liam (Liverpool U. ; CERN) ; Spagnoletti, Pietro (West Scotland U.) ; Konki, Joonas (CERN) ; Scheck, Marcus (West Scotland U.) ; Smith, John (West Scotland U.) ; Abrahams, Kenzo (Western Cape U.) ; Bowry, Michael (TRIUMF) ; Cederkäll, Joakim (Lund U.) ; Chupp, Timothy (Michigan U.) et al.
There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. [...]
2019 - 5 p.
- Published in : EPJ Web Conf. 223 (2019) 01007
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In : IV International Conference on Nuclear Structure and Dynamics (NSD2019), Venice, Italy, 13 -17 May 2019, pp.01007
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Study of the neutron-rich region in the vicinity of 208Pb via multinucleon transfer reactions
/ Čolović, Petra (Boskovic Inst., Zagreb) ; Illana, Andrés (INFN, Legnaro) ; Szilner, Suzana (Boskovic Inst., Zagreb) ; Valiente-Dobón, Jose-Javier (INFN, Legnaro) ; Corradi, Lorenzo (INFN, Legnaro) ; Mijatović, Tea (Boskovic Inst., Zagreb) ; Benzoni, Giovanna (Milan U. ; INFN, Milan) ; Borge, María José García (Madrid, Inst. Estructura Materia) ; Boso, Alberto (Padua U. ; INFN, Padua) ; Ceruti, Simone (Milan U. ; INFN, Milan) et al.
The multinucleon transfer reaction mechanism was employed to populate isotopes around the doubly-magic 208 Pb nucleus. We used an unstable 94 Rb beam on 208 Pb targets of different thickness. [...]
2019 - 4 p.
- Published in : EPJ Web Conf. 223 (2019) 01012
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In : IV International Conference on Nuclear Structure and Dynamics (NSD2019), Venice, Italy, 13 -17 May 2019, pp.01012
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Evidence for spherical-oblate shape coexistence in $^{87}\mathrm{Tc}$
/ Liu, X (Stockholm, Res. Inst. Atomic Phys. ; Lanzhou, Inst. Modern Phys. ; Beijing, GUCAS) ; Cederwall, B (Stockholm, Res. Inst. Atomic Phys.) ; Qi, C (Stockholm, Res. Inst. Atomic Phys.) ; Wyss, R A (Stockholm, Res. Inst. Atomic Phys.) ; Aktas, Ö (Stockholm, Res. Inst. Atomic Phys.) ; Ertoprak, A (Stockholm, Res. Inst. Atomic Phys. ; Istanbul U.) ; Zhang, W (Stockholm, Res. Inst. Atomic Phys.) ; Clément, E (GANIL) ; de France, G (GANIL) ; Ralet, D (CSNSM, Orsay) et al.
Excited states in the neutron-deficient nucleus $^{87}$Tc have been studied via the fusion-evaporation reaction $^{54}$Fe($^{36}$Ar, 2$n$1p) $^{87}$Tc at 115 MeV beam energy. The AGATA γ -ray spectrometer coupled to the DIAMANT, NEDA, and Neutron Wall detector arrays for light-particle detection was used to measure the prompt coincidence of $\gamma$ rays and light particles. [...]
2022 - 6 p.
- Published in : Phys. Rev. C 106 (2022) 034304
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Coulomb excitation of $^{222}$Rn
/ Spagnoletti, P (West Scotland U. ; Simon Fraser U., Dept. Chem.) ; Butler, P A (Liverpool U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Abrahams, K (Western Cape U.) ; Bowry, M (West Scotland U. ; TRIUMF) ; Cederkäll, J (Lund U.) ; Chupp, T (U. Michigan, Ann Arbor) ; de Angelis, G (INFN, Legnaro) ; De Witte, H (Leuven U.) ; Garrett, P E (Guelph U.) et al.
The nature of quadrupole and octupole collectivity in $^{222}$Rn was investigated by determining the electric-quadrupole (E2) and octupole (E3) matrix elements using subbarrier, multistep Coulomb excitation. The radioactive $^{222}$Rn beam, accelerated to 4.23 MeV/u, was provided by the HIE-ISOLDE facility at CERN. [...]
2022 - 10 p.
- Published in : Phys. Rev. C 105 (2022) 024323
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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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NEDA—NEutron Detector Array
/ Valiente-Dobón, J J (INFN, Legnaro) ; Jaworski, G (INFN, Legnaro) ; Goasduff, A (INFN, Legnaro ; Padua U. ; INFN, Padua) ; Egea, F J (INFN, Legnaro ; Padua U. ; INFN, Padua ; Valencia U., IFIC) ; Modamio, V (INFN, Legnaro ; Oslo U.) ; Hüyük, T (Valencia U., IFIC) ; Triossi, A (Padua U. ; INFN, Padua ; CERN) ; Jastrząb, M (Cracow, INP) ; Söderström, P A (ELI-NP, Bucharest) ; Di Nitto, A (Darmstadt, GSI ; Helmholtz Inst., Mainz) et al.
The NEutron Detector Array, NEDA, will form the next generation neutron detection system that has been designed to be operated in conjunction with γ -ray arrays, such as the tracking-array AGATA, to aid nuclear spectroscopy studies. NEDA has been designed to be a versatile device, with high-detection efficiency, excellent neutron- γ discrimination, and high rate capabilities. [...]
2019 - 6 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 927 (2019) 81-86
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Study of the scattering of $^{15}$C at energies around the Coulomb barrier
/ Ovejas, J D (Madrid, Inst. Estructura Materia) ; Knyazev, A (Lund U.) ; Martel, I (Liverpool U. ; Huelva U.) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Cederkall, J (Lund U.) ; Keeley, N (NCBJ, Lodz) ; Rusek, K (Warsaw U., Heavy Ion Lab) ; García-Ramos, C (Huelva U.) ; Pérez, T (Huelva U.) et al.
The neutron rich carbon isotope $^{15}$C is the only known case of an almost "pure" 2s$_{1/2}$ single-neutron halo ground state configuration. At collision energies around the Coulomb barrier the reaction dynamics is expected to be dominated by single neutron transfer and breakup [...]
2020 - 4 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012095
Fulltext: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012095
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