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Weak interaction studies via beta-delayed proton emission
/ Alfaurt, Philippe (LP2i Bordeaux) ; Ascher, Pauline (LP2i Bordeaux) ; Blank, Bertram (LP2i Bordeaux) ; Daudin, Laurent (LP2i Bordeaux) ; Gerbaux, Mathias (LP2i Bordeaux) ; Giovinazzo, Jérôme (LP2i Bordeaux) ; Grévy, Stéphane (LP2i Bordeaux) ; Lecanuet, Samuel (LP2i Bordeaux) ; Lépine, Anais (LP2i Bordeaux) ; Roche, Mathieu (LP2i Bordeaux) et al.
CERN-INTC-2024-050 ; INTC-P-574-ADD-2.
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2024 - mult..
Original Document (INTC-P-574) - Full text
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2.
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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
Fulltext: PDF;
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3.
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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
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4.
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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.
Fulltext
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5.
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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
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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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7.
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Gamma-ray branching ratios in the decay of $^{49}$Cr
/ Blank, B (CENBG, Gradignan) ; Aouadi, M (CENBG, Gradignan) ; Ascher, P (CENBG, Gradignan) ; Gerbaux, M (CENBG, Gradignan) ; Giovinazzo, J (CENBG, Gradignan) ; Goigoux, T (CENBG, Gradignan) ; Grévy, S (CENBG, Gradignan) ; Kurtukian Nieto, T (CENBG, Gradignan) ; Magron, C (CENBG, Gradignan) ; de Roubin, A (CENBG, Gradignan ; Jyvaskyla U.) et al.
The $\gamma$ -decay branching ratios of $^{49}$V have been studied in the $\beta$ /EC decay of $^{49}$Cr. The $\gamma$-ray spectrum has been measured with a 70% relative efficiency co-axial germanium detector calibrated in efficiency with a precision of about 0.5%. [...]
2018 - 6 p.
- Published in : Eur. Phys. J. A 54 (2018) 93
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Metal-core pad-plane development for ACTAR TPC
/ Giovinazzo, J (CENBG, Gradignan) ; Pibernat, J (CENBG, Gradignan) ; Goigoux, T (CENBG, Gradignan) ; de Oliveira, R (CERN) ; Grinyer, G F (Regina U. ; GANIL) ; Huss, C (CENBG, Gradignan) ; Mauss, B (GANIL) ; Pancin, J (GANIL) ; Pedroza, J L (CENBG, Gradignan) ; Rebii, A (CENBG, Gradignan) et al.
With the recent development of active targets and time projection chambers (ACTAR TPC) as detectors for fundamental nuclear physics experiments, the need arose for charge collection planes with a high density of readout channels. In order to fulfill the mechanical constraints for the ACTAR TPC device, we designed a pad-plane based on a metal-core circuit with an conceptually simple design and routing for signal readout, named FAKIR (in reference to a fakir bed of nails). [...]
2018 - 8 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 892 (2018) 114-121
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9.
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WISARD: Weak-interaction studies with $^{32}$Ar decay
/ Ascher, P (CEN Bordeaux-Gradignan, France) ; Blank, B (CEN Bordeaux-Gradignan, France) ; Gerbaux, M (CEN Bordeaux-Gradignan, France) ; Giovinazzo, J (CEN Bordeaux-Gradignan, France) ; Grévy, S (CEN Bordeaux-Gradignan, France) ; Kurtukian Nieto, T (CEN Bordeaux-Gradignan, France) ; Severijns, N (KU Leuven, Belgium) ; Araujo-Escalona, V (KU Leuven, Belgium) ; Ban, G (LPC Caen, France) ; Fléchard, X (LPC Caen, France) et al.
CERN-INTC-2016-050 ; INTC-I-172.
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2016.
Fulltext
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10.
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Measurement of the super-allowed branching ratio of $^{22}$Mg
/ Giovinazzo, J
- ISOLDE.
Approved: 09 March 2016.-
Status: Completed on 05 May 2020
Experiment: IS614
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