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Quadrupole and octupole collectivity in the semi-magic nucleus 80206Hg126
/ Morrison, L (Surrey U.) ; Hadyńska-Klȩk, K (Warsaw U., Heavy Ion Lab ; Surrey U.) ; Podolyák, Zs (Surrey U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Zielińska, M (IRFU, Saclay) ; Brown, B A (Michigan State U., East Lansing (main)) ; Grawe, H (Darmstadt, GSI) ; Stevenson, P D (Surrey U.) ; Berry, T (Surrey U.) ; Boukhari, A (CSNSM, Orsay) et al.
The first low-energy Coulomb-excitation measurement of the radioactive, semi-magic, two proton-hole nucleus 206Hg, was performed at CERN's recently-commissioned HIE-ISOLDE facility. Two γ rays depopulating low-lying states in 206Hg were observed. [...]
2023 - 5 p.
- Published in : Phys. Lett. B 838 (2023) 137675
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2.
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Dealing with contaminants in Coulomb excitation of radioactive beams
/ Morrison, L (Surrey U.) ; Hadynska-Klek, K (Warsaw U. (main) ; Surrey U.) ; Podolyák, Zs (Surrey U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Kaya, L (Cologne U.) ; Berry, T (Surrey U.) ; Boukhari, A (Orsay) ; Brunet, M (Surrey U.) ; Canavan, R (Surrey U. ; Teddington, Natl. Phys. Lab) ; Catherall, R (CERN) et al.
Data analysis of the Coulomb excitation experiment of the exotic $^{206}$Hg nucleus, recently performed at CERN’s HIE-ISOLDE facility, needs to account for the contribution to target excitation due to the strongly-present beam contaminant $^{130}$Xe. In this paper, the contamination subtraction procedure is presented..
2020 - 7 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012146
Fulltext: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012146
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3.
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$^{208}$Po populated through EC/β$^{+}$ decay
/ Brunet, M (Surrey U.) ; Berry, T A (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Carroll, R J (Surrey U.) ; Lica, R (CERN ; Bucharest, IFIN-HH) ; Sotty, Ch (Bucharest, IFIN-HH ; Leuven U.) ; Andreyev, A N (York U., England) ; Borge, M J G (CERN) ; Cubiss, J G (CERN ; York U., England) ; Fraile, L M (Madrid U.) et al.
The structure of $^{208}$Po resulting from the EC/β + decay of $^{208}$At was studied at CERN’s ISOLDE Decay Station (IDS). The high statistics afforded by the high yield of $^{208}$At and the high efficiency HPGe clusters at the IDS allowed for greater insight into lower intensity transitions and thus significant expansion of the $^{208}$Po level scheme. [...]
2020 - 7 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012116
Fulltext from publisher: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012116
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4.
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Report on G4‐Med, a Geant4 benchmarking system for medical physics applications developed by the Geant4 Medical Simulation Benchmarking Group
/ Arce, P (Madrid, CIEMAT) ; Bolst, D (Wollongong U.) ; Cutajar, D (Wollongong U.) ; Guatelli, S (Wollongong U.) ; Le, A (Wollongong U.) ; Rosenfeld, A B (Wollongong U.) ; Sakata, D (Wollongong U.) ; Bordage, M‐C (CRCT, Toulouse) ; Brown, J M C (KIN, Delft) ; Cirrone, P (INFN, LNS) et al.
Geant4 is a Monte Carlo code extensively used in medical physics for a wide range of applications, such as dosimetry, micro‐ and nano‐ dosimetry, imaging, radiation protection and nuclear medicine. Geant4 is continuously evolving, so it is crucial to have a system that benchmarks this Monte Carlo code for medical physics against reference data and to perform regression testing. [...]
2021 - 38 p.
- Published in : Med. Phys. 48 (2021) 19-56
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5.
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Competition between allowed and first-forbidden $β$ decays of $^{208}$At and expansion of the $^{208}$Po level scheme
/ Brunet, M (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Berry, T A (Surrey U.) ; Brown, B A (Michigan State U., NSCL) ; Carroll, R J (Surrey U.) ; Lica, R (CERN ; Bucharest, IFIN-HH) ; Sotty, Ch (Bucharest, IFIN-HH ; Leuven U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Borge, M J G (CERN) ; Cubiss, J G (CERN ; Madrid U.) et al.
The structure of $^{208}$Po populated through the EC/$β^+$ decay of $^{208}$At is investigated using $γ$-ray spectroscopy at the ISOLDE Decay Station. The presented level scheme contains 27 new excited states and 43 new transitions, as well as a further 50 previously observed $γ$ rays which have been (re)assigned a position. [...]
2021 - 13 p.
- Published in : Phys. Rev. C 103 (2021) 054327
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6.
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Octupole states in $^{207}$Tl studied through $β$ decay
/ Berry, T A (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Carroll, R J (Surrey U.) ; Lică, R (CERN ; Bucharest, IFIN-HH) ; Brown, B A (Michigan State U.) ; Grawe, H (Darmstadt, GSI) ; Sotty, Ch (Bucharest, IFIN-HH ; Leuven U.) ; Timofeyuk, N K (Surrey U.) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England) et al.
The $β$ decay of $^{207}$Hg into the single-proton-hole nucleus $^{207}$Tl has been studied through $γ$-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the $πs^{−1}_{1/2}, πd^{−1}_{3/2},$ and $πh^{−1}_{11/2}$ shell model orbitals to the collective octupole vibration. Twenty-two states were observed lying between 2.6 and 4.0 MeV, eleven of which were observed for the first time, and 78 new transitions were placed. [...]
2020 - 12 p.
- Published in : Phys. Rev. C 101 (2020) 054311
Fulltext from publisher: PDF;
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7.
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Investigation of the $\Delta n = 0$ selection rule in Gamow-Teller transitions: The $\beta$-decay of $^{207}$Hg
/ Berry, T A (Surrey U.) ; Podolyák, Zs (Surrey U.) ; Carroll, R J (Surrey U.) ; Lică, R (CERN ; Bucharest, IFIN-HH) ; Grawe, H ; Timofeyuk, N K (Surrey U.) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England) ; Ansari, S (Cologne U.) ; Borge, M J G (CERN ; Madrid, Inst. Estructura Materia) et al.
Gamow-Teller $\beta$ decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This $\Delta n=0$ requirement plays a major role in the $\beta$ decay of heavy neutron-rich nuclei, affecting the nucleosynthesis through the increased half-lives of nuclei on the astrophysical $r$-process pathway below both $Z=50$ (for $N>82$ ) and $Z=82$ (for $N>126$). [...]
2019 - 5 p.
- Published in : Phys. Lett. B 793 (2019) 271-275
Article from SCOAP3: PDF;
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