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β decay of $^{6}$He into the α+d continuum
/ Pfützner, M (Warsaw U.) ; Dominik, W (Warsaw U.) ; Janas, Z (Warsaw U.) ; Mazzocchi, C (Warsaw U.) ; Pomorski, M (Warsaw U.) ; Bezbakh, A A (Dubna, JINR) ; Borge, M J G (Madrid, Inst. Estructura Materia ; CERN) ; Chrapkiewicz, K (Warsaw U.) ; Chudoba, V (Dubna, JINR) ; Frederickx, R (Leuven U.) et al.
The rare β-decay channel of $^{6}$He into the α+d continuum was investigated at the REX-ISOLDE facility. Bunches of postaccelerated $^{6}$He ions were implanted into the optical time projection chamber (OTPC), where the decays with emission of charged particles were recorded. [...]
APS, 2015 - 7 p.
- Published in : Phys. Rev. C 92 (2015) 014316
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3.
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Search for beta-delayed proton emission from $^{11}$Be
/ Riisager, K. (Aarhus U.) ; Borge, M.J.G. (CERN ; Madrid, Inst. Estructura Materia) ; Briz, J.A. (Madrid, Inst. Estructura Materia) ; Carmona-Gallardo, M. (Madrid U.) ; Forstner, O. (Vienna U.) ; Fraile, L.M. (Madrid U.) ; Fynbo, H.O.U. (Aarhus U.) ; Garzon Camacho, A. (Madrid, Inst. Estructura Materia) ; Johansen, J.G. (Aarhus U.) ; Jonson, B. (Chalmers U. Tech.) et al.
We report on an attempt to reproduce the observation of $\beta^-$-delayed proton emission from $^{11}$Be through detection of the final state nucleus $^{10}$Be with accelerator mass spectrometry. Twelve samples were collected at the ISOLDE facility at CERN at different separator settings, allowing tests of different sources of contamination to be carried out. [...]
arXiv:2001.02566.-
2020-03-30 - 8 p.
- Published in : Eur. Phys. J. A 56 (2020) 100
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Study of multi-neutron emission in the $\beta$-decay of $^{11}$Li
/ Delaunay, F. (Caen U.) ; Achouri, N.L. (Caen U.) ; Algora, A. (Valencia U., IFIC) ; Assie, M. (Orsay, IPN) ; Balibrea, J. (Madrid, CIEMAT) ; Banerjee, K. (Calcutta, VECC) ; Bhattacharya, C. (Calcutta, VECC) ; Borge, M.J.G. (CERN ; Madrid, Inst. Estructura Materia) ; Cano-Ott, D. (Madrid, CIEMAT) ; Fernandez-Domınguez, B. (Santiago de Compostela U.) et al.
The kinematics of two-neutron emission following the $\beta$-decay of $^{11}$Li was investigated for the first time by detecting the two neutrons in coincidence and by measuring their angle and energy. An array of liquid-scintillator neutron detectors was used to reject cosmic-ray and $\gamma$-ray backgrounds by pulse-shape discrimination. [...]
arXiv:1906.04699.-
2019-03 - 4 p.
- Published in : Nuovo Cimento C 42 (2019) 98
Fulltext: PDF; Fulltext from publisher: PDF;
In : European Nuclear Physics Conference 2018, Bologna, Italy, 2 - 7 Sep 2018, pp.98
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Evolution of deformation in neutron-rich Ba isotopes up to $A=150$
/ Lică, R (CERN ; Bucharest, IFIN-HH) ; Benzoni, G (INFN, Milan) ; Rodríguez, T R (Madrid, Autonoma U.) ; Borge, M J G (CERN ; CSIC, Madrid) ; Fraile, L M (UCM, Somosaguas) ; Mach, H (NCBJ, Warsaw) ; Morales, A I (INFN, Milan ; Milan U. ; Valencia U., IFIC) ; Madurga, M (CERN) ; Sotty, C O (Leuven U.) ; Vedia, V (UCM, Somosaguas) et al.
/IDS
The occurrence of octupolar shapes in the Ba isotopic chain was recently established experimentally up to $N=90$. To further extend the systematics, the evolution of shapes in the most neutron-rich members of the $Z=56$ isotopic chain accessible at present, $^{148,150}$Ba, has been studied via $\beta$ decay at the ISOLDE Decay Station. [...]
2018 - 12 p.
- Published in : Phys. Rev. C 97 (2018) 024305
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First Accurate Normalization of the $\beta$-delayed $\alpha$ Decay of $^{16}$N and Implications for the $^{12}$C$(\alpha,\gamma)^{16}$O Astrophysical Reaction Rate
/ Kirsebom, O.S. (Aarhus U.) ; Tengblad, O. (CSIC, Madrid) ; Lica, R. (CERN ; Bucharest, IFIN-HH) ; Munch, M. (Aarhus U.) ; Riisager, K. (Aarhus U.) ; Fynbo, H.O.U. (Aarhus U.) ; Borge, M.J.G. (CSIC, Madrid ; CERN) ; Madurga, M. (CERN) ; Marroquin, I. (CSIC, Madrid) ; Andreyev, A.N. (York U., England) et al.
The $^{12}\text{C}(\alpha,\gamma){}^{16}\text{O}$ reaction plays a central role in astrophysics, but its cross section at energies relevant for astrophysical applications is only poorly constrained by laboratory data. The reduced $\alpha$ width, $\gamma_{11}$, of the bound $1^-$ level in $^{16}$O is particularly important to determine the cross section. [...]
arXiv:1804.02040.-
2018-10-10 - 6 p.
- Published in : Phys. Rev. Lett. 121 (2018) 142701
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Improved experimental determination of the branching ratio for $\beta$-delayed $\alpha$ decay of $^{16}$N
/ Kirsebom, Oliver S (Aarhus U.) ; Alonso, Irene M (CSIC, Madrid) ; Berry, Tom (Surrey U.) ; Borge, Maria J G (CERN) ; Christensen, Esben R (Aarhus U.) ; Doherty, Daniel (York U., England) ; Fernández, Paloma D (Chalmers U. Tech.) ; Flores, Miguel M (CERN) ; Fynbo, Hans O U (Aarhus U.) ; Gallardo, Mariano C (UCM, Madrid, Dept. Phys.) et al.
We report on the preliminary results of an experimental study of the $\beta$ decay of $^{16}$N, aiming to determine the branching ratio of the $\beta\alpha$ channel with a precision of $\leq$ 5%..
2017 - 4 p.
- Published in : EPJ Web Conf. 165 (2017) 01031
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In : 8th Nuclear Physics in Astrophysics, Catania, Italy, June 18-23, 2017, pp.01031
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Multi-particle Emission from $^{31}$Ar at ISOLDE
/ Marroquin, I ; Borge, M J G ; Ciemny, A A ; de Witte, H ; Fraile, L M ; Fynbo, H O U ; Garzón-Camacho, A ; Howard, A ; Johansson, H ; Jonson, B et al.
A multi-particle decay experiment was successfully performed at the ISOLDE Decay Station. In this new permanent station, devoted to\break $\beta$-decay studies, the novel MAGISOL Si-Plugin Chamber was installed to study the exotic decay modes of the proton drip-line nucleus ${^{31}}$Ar. [...]
2016
- Published in : Acta Phys. Pol. B 47 (2016) 747
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Fast-timing study of the $l$-forbidden $1/2^+ \rightarrow 3/2^+ M1$ transition in $^{129}Sn$
/ Lică, R (CERN ; Bucharest, IFIN-HH) ; Mach, H (Warsaw, Inst. Nucl. Studies) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Gargano, A (INFN, Naples) ; Borge, M J G (CERN ; Madrid, Inst. Estructura Materia) ; Mărginean, N (Bucharest, IFIN-HH) ; Sotty, C O (Bucharest, IFIN-HH ; Leuven U.) ; Vedia, V (UCM, Madrid, Dept. Phys.) ; Andreyev, A N (York U., England) ; Benzoni, G (INFN, Milan) et al.
The levels in Sn129 populated from the β− decay of In129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2+ state and the 3/2+ ground state in Sn129 are expected to have configurations dominated by the neutron s1/2 (l=0) and d3/2 (l=2) single-particle states, respectively. [...]
2016 - 7 p.
- Published in : Phys. Rev. C 93 (2016) 044303
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