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$^{133}$In: A Rosetta Stone for decays of r-process nuclei
/ Xu, Z.Y. (U. Tennessee, Knoxville) ; Madurga, M. (U. Tennessee, Knoxville) ; Grzywacz, R. (U. Tennessee, Knoxville ; Oak Ridge) ; King, T.T. (U. Tennessee, Knoxville ; Oak Ridge) ; Algora, A. (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Andreyev, A.N. (York U., England ; JAERI, Tokai) ; Benito, J. (Madrid U.) ; Berry, T. (Surrey U.) ; Borge, M.J.G. (CSIC, Madrid) ; Costache, C. (Bucharest, IFIN-HH ; Leuven U.) et al.
The $\beta$ decays from both the ground state and a long-lived isomer of $^{133}$In were studied at the ISOLDE Decay Station (IDS). With a hybrid detection system sensitive to $\beta$, $\gamma$, and neutron spectroscopy, the comparative partial half-lives (logft) have been measured for all their dominant $\beta$-decay channels for the first time, including a low-energy Gamow-Teller transition and several First-Forbidden (FF) transitions. [...]
arXiv:2306.01842.-
2023-07-14 - 8 p.
- Published in : Phys. Rev. Lett. 131 (2023) 022501
Fulltext: Publication - PDF; 2306.01842 - PDF;
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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
Fulltext: PDF;
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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$\beta$-delayed neutron spectroscopy of $^{133}$In
/ Xu, Z.Y. (U. Tennessee, Knoxville) ; Madurga, M. (U. Tennessee, Knoxville) ; Grzywacz, R. (U. Tennessee, Knoxville ; Oak Ridge) ; King, T.T. (U. Tennessee, Knoxville ; Oak Ridge) ; Algora, A. (Valencia U., IFIC ; Debrecen, Inst. Nucl. Res.) ; Andreyev, A.N. (York U., England ; JAERI, Tokai) ; Benito, J. (Madrid U.) ; Berry, T. (Surrey U.) ; Borge, M.J.G. (Madrid, Inst. Estructura Materia) ; Costache, C. (Bucharest, IFIN-HH) et al.
The decay properties of $^{133}$In were studied in detail at the ISOLDE Decay Station (IDS). The implementation of the Resonance Ionization Laser Ion Source (RILIS) allowed separate measurements of its $9/2^+$ ground state ($^{133g}$In) and $1/2^-$ isomer ($^{133m}$In). [...]
arXiv:2303.12173.-
2023-07-14 - 9 p.
- Published in : Phys. Rev. C 108 (2023) 014314
Fulltext: Publication - PDF; 2303.12173 - PDF;
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Experimental setup for Weak Interaction Studies with Radioactive ion-beams WISArD
/ Atanasov, D (CERN) ; Cresto, F (LPC, Caen) ; Nies, L (CERN) ; Pomorski, M (LP2I, Bordeaux) ; Versteegen, M (LP2I, Bordeaux) ; Alfaurt, P (LP2I, Bordeaux) ; Araujo-Escalona, V (Leuven U.) ; Ascher, P (LP2I, Bordeaux) ; Blank, B (LP2I, Bordeaux) ; Daudin, L (LP2I, Bordeaux) et al.
The article describes the commissioning and technical development of the Weak Interaction Studies with 32Ar Decay (WISArD) experiment, installed at the radioactive ion-beam facility ISOLDE/CERN. The experiment aims to extend the present limits on scalar and tensor currents in the weak interaction and hence search for physics beyond the Standard Model. [...]
2023 - 11 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1050 (2023) 168159
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Branching ratio of the super-allowed $\beta$ decay of $^{10}$C
/ Blank, B. (CENBG, Gradignan) ; Aouadi, M. (CENBG, Gradignan) ; Ascher, P. (CENBG, Gradignan) ; Gerbaux, M. (CENBG, Gradignan) ; Giovinazzo, J. (CENBG, Gradignan) ; Grévy, S. (CENBG, Gradignan) ; Kurtukian Nieto, T. (CENBG, Gradignan) ; Dunlop, M.R. (Guelph U.) ; Dunlop, R. (Guelph U.) ; Laffoley, A.T. (Guelph U.) et al.
In an experiment performed at the ISOLDE facility of CERN, the super-allowed beta-decay branching ratio of 10C was determined with a high-precision single-crystal germanium detector. In order to evaluate the contribution of the pile-up of two 511 keV gamma quanta to one of the gamma-ray peaks of interest at 1021.7 keV, data were not only taken with 10C, but also with a 19Ne beam. [...]
arXiv:2004.02559.-
2020-05-31 - 9 p.
- Published in : Eur. Phys. J. A 56 (2020) 156
Fulltext: PDF;
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Weak interaction studies via beta-delayed proton emission
/ Alfaurt, Philippe (CENBG-IN2P3-CNRS) ; Araujo-Escalona, Victoria (Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven) ; Ascher, Pauline (CENBG-IN2P3-CNRS) ; Atanasov, Dinko (CERN) ; Blank, Bertram (CENBG-IN2P3-CNRS) ; Cresto, Federica (CENBG-IN2P3-CNRS) ; Daudin, Laurent (CENBG-IN2P3-CNRS) ; Fléchard, Xavier (Normandie Univ, ENSICAEN, UNICAEN, CNRS/IN2P3, LPC Caen) ; Garcia, Alejandro (University of Washington, Seattle) ; Gerbaux, Mathias (CENBG-IN2P3-CNRS) et al.
CERN-INTC-2020-058 ; INTC-P-574.
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2020.
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Spectroscopy of Neutron Induced Reactions with the $\nu $-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 $\nu$-ball is a high-efficiency hybrid spectrometer which consists of both germanium (Ge) detectors and associated anti-Compton BGO shields, coupled to lanthanum bromide (LaBr$_3$) 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
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Simultaneous measurements of the $\beta$ -neutrino angular correlation in $^{32}$Ar pure Fermi and pure Gamow-Teller transitions using $\beta$ -proton coincidences
/ Araujo-Escalona, V. (Leuven U.) ; Atanasov, D. (Leuven U. ; CERN) ; Fléchard, X. (ENSICAEN) ; Alfaurt, P. (CENBG, Gradignan) ; Ascher, P. (CENBG, Gradignan) ; Blank, B. (CENBG, Gradignan) ; Daudin, L. (CENBG, Gradignan) ; Gerbaux, M. (CENBG, Gradignan) ; Giovinazzo, J. (CENBG, Gradignan) ; Grévy, S. (CENBG, Gradignan) et al.
We report first time measurements of the beta-neutrino angular correlation based on the kinetic energy shift of protons emitted in parallel or anti-parallel directions with respect to the positron in the beta decay of $^{32}$Ar. This proof of principle experiment provided simultaneous measurements for the superallowed 0$^+$~$\rightarrow$~0$^+$ transition followed by a 3356~keV proton emission and for a Gamow-Teller transition followed by a 2123~keV proton emission. [...]
arXiv:1906.05135.-
2020-05-14 - 7 p.
- Published in : Phys. Rev. C 101 (2020) 055501
Fulltext: PDF;
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Scalar current limit from the beta-neutrino correlation: the WISArD experiment
/ Araujo-Escalona, V (Leuven U.) ; Alfaurt, P (CENBG, Gradignan) ; Ascher, P (CENBG, Gradignan) ; Atanasov, D (Leuven U. ; CERN) ; Blank, B (CENBG, Gradignan) ; Daudin, L (CENBG, Gradignan) ; Fléchard, X (Caen U.) ; Gerbaux, M (CENBG, Gradignan) ; Giovinazzo, J (CENBG, Gradignan) ; Grévy, S (CENBG, Gradignan) et al.
Beta - neutrino correlation measurements are key in the research of physics beyond the Standard Model. In pure Fermi beta transitions, the beta-neutrino correlation coefficient, a βν, is sensitive to the presence of scalar currents. [...]
2019 - 9 p.
- Published in : J. Phys.: Conf. Ser. 1308 (2019) 012003
Fulltext: PDF;
In : 42nd Symposium on Nuclear Physics, Cocoyoc, Mexico, 07 - 10 Jan 2019, pp.012003
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