CERN Accelerating science

CERN Document Server 2,051 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.68 sekúnd. 
1.
Quadrupole deformation of 130Xe measured in a Coulomb-excitation experiment / Morrison, L (Surrey U.) ; Hadyńska-Klȩk, K (Warsaw U., Heavy Ion Lab ; Surrey U.) ; Podolyák, Zs (Surrey U.) ; Doherty, D T (Surrey U.) ; Gaffney, L P (Liverpool U. ; CERN) ; Kaya, L (Cologne U.) ; Próchniak, L (Warsaw U., Heavy Ion Lab) ; Samorajczyk-Pyśk, J (Warsaw U., Heavy Ion Lab) ; Srebrny, J (Warsaw U., Heavy Ion Lab) ; Berry, T (Surrey U.) et al.
Low-lying states in the isotope 130Xe were populated in a Coulomb-excitation experiment performed at CERN's HIE-ISOLDE facility. The magnitudes and relative signs of seven E2 matrix elements and one M1 matrix element coupling five low-lying states in 130Xe were determined using the semiclassical coupled-channel Coulomb-excitation least-squares search code gosia. [...]
2020 - 13 p. - Published in : Phys. Rev. C 102 (2020) 054304 Fulltext: PDF;
2.
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 206Hg 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 130Xe. 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
3.
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 Fulltext: PDF;
4.
Competition between Allowed and First-Forbidden β Decay: The Case of 208Hg208Tl / Carroll, R J (Surrey U.) ; Podolyák, Zs (Surrey U. ; Darmstadt, GSI) ; Berry, T (Surrey U.) ; Grawe, H (Darmstadt, GSI) ; Alexander, T (Surrey U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Ansari, S (Cologne U.) ; Borge, M J G (CERN) ; Brunet, M (Surrey U.) ; Creswell, J R (Liverpool U.) et al.
The β decay of 208Hg into the one-proton hole, one neutron-particle 20881Tl127 nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. [...]
2020 - 6 p. - Published in : Phys. Rev. Lett. 125 (2020) 192501 Fulltext: PDF;
5.
Octupole states in 207Tl 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 207Hg into the single-proton-hole nucleus 207Tl has been studied through γ-ray spectroscopy at the ISOLDE Decay Station (IDS) with the aim of identifying states resulting from coupling of the πs11/2,πd13/2, and πh111/2 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;
6.
Spectroscopy of Neutron Induced Reactions with the ν-ball Spectrometer / Jovančević, N (Orsay, IPN ; U. Paris-Saclay) ; Lebois, M (Orsay, IPN ; U. Paris-Saclay) ; Wilson, J N (Orsay, IPN ; U. Paris-Saclay) ; Thisse, D (Orsay, IPN ; U. Paris-Saclay) ; Qi, L (Orsay, IPN ; U. Paris-Saclay) ; Matea, I (Orsay, IPN ; U. Paris-Saclay) ; Ibrahim, F (Orsay, IPN ; U. Paris-Saclay) ; Verney, D (Orsay, IPN ; U. Paris-Saclay) ; Babo, M (Orsay, IPN ; U. Paris-Saclay) ; Delafosse, C (Orsay, IPN ; U. Paris-Saclay) et al.
The ν-ball is a high-efficiency hybrid spectrometer which consists of both germanium (Ge) detectors and associated anti-Compton BGO shields, coupled to lanthanum bromide (LaBr3) detectors. The hybrid configuration provides a combination of both excellent energy and timing resolutions. [...]
Acta Physica Polonica B Editorial Office, 2019 - 8 p. - Published in : Acta Phys. Pol. B 50 (2019) 297
In : Zakopane Conference on Nuclear Physics : Extremes of the Nuclear Landscape, Zakopane, Poland, 26 Aug - 2 Sep 2018, pp.297
7.
Competition between allowed and first-forbidden β decays of 208At and expansion of the 208Po 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 208Po populated through the EC/β+ decay of 208At 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 Fulltext: PDF;
8.
Investigation of the Δn=0 selection rule in Gamow-Teller transitions: The β-decay of 207Hg / 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 β decay is forbidden if the number of nodes in the radial wave functions of the initial and final states is different. This Δn=0 requirement plays a major role in the β 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;
9.
Restoring the valence-shell stabilization in 140Nd / 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 140Nd using the multistep Coulomb-excitation code GOSIA. The absolute M1 strengths, B(M1;2+22+1)=0.033(8)μ2N,B(M1;2+32+1)=0.26+0.110.10μ2N, and B(M1;2+42+1)<0.04μ2N, identify the 2+3 state as the main fragment of the one-quadrupole-phonon proton-neutron mixed-symmetry state of 140Nd. [...]
2020 - 6 p. - Published in : Phys. Rev. C 102 (2020) 041304 Fulltext: PDF;
10.
Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg / 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 182188 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 Fulltext (Open Access version from publisher): PDF;

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