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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
Fulltext: PDF;
In : 8th Nuclear Physics in Astrophysics, Catania, Italy, June 18-23, 2017, pp.01031
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2.
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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
Fulltext: PDF; Fulltext from Publisher: PDF;
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4.
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The Most Accurate Determination of the $^{8}$B Half-life
/ Viñals, S (Madrid, Inst. Estructura Materia) ; Nácher, E (Madrid, Inst. Estructura Materia ; Valencia U., IFIC) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Figuera, P (INFN, Catania) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Fynbo, H O U (Aarhus U.) ; Gad, A (Aarhus U.) ; Jensen, J (Aarhus U.) et al.
Beta decay is a primary source of information of the structure of a nucleus. An accurate measurement of the half-life of a nucleus is essential for the proper determination of the reduced Gammow–Teller transition probability $B$(GT) [...]
2020 - 7 p.
- Published in : Acta Phys. Pol. B 51 (2020) 717
Fulltext: PDF;
In : 36th Mazurian Lakes Conference on Physics : Probing fundamental laws of nature with exotic nuclei and atoms, Piaski, Poland, 1 - 7 Sep 2019, pp.717
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5.
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High-sensitivity study of levels in $^{30}Al$ following β decay of $^{30}Mg$
/ Olaizola, B (UCM, Madrid, Dept. Phys.) ; Mach, H (UCM, Madrid, Dept. Phys.) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Borge, M J G (CSIC, Madrid) ; Boutami, R (UCM, Madrid, Dept. Phys.) ; Butler, P A (Liverpool U.) ; Dlouhy, Z (Rez, Nucl. Phys. Inst.) ; Fynbo, H O U (Aarhus U.) ; Hoff, P (Oslo U.) et al.
γ-ray and fast-timing spectroscopy were used to study levels in Al30 populated following the β− decay of Mg30. Five new transitions and three new levels were located in Al30. [...]
2016 - 7 p.
- Published in : Phys. Rev. C 94 (2016) 054318
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6.
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New $\beta$-decaying state in $^{214}$Bi
/ IDS Collaboration
A new $\beta$-decaying state in $^{214}$Bi has been identified at the ISOLDE Decay Station at the CERN-ISOLDE facility. A preferred $I^{\pi} = (8^-)$ assignment was suggested for this state based on the β-decay feeding pattern to levels in $^{214}$Po and shell-model calculations. [...]
2021 - 13 p.
- Published in : Phys. Rev. C 104 (2021) 054301
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7.
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The experiments to determine the electron capture and $\beta$-decay of $^8$B into the highly excited states of $^8$Be
/ Vinals, S (Madrid, Inst. Estructura Materia) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Tengblad, O (Madrid, Inst. Estructura Materia) ; Nacher, E (Valencia U., IFIC) ; Benito, J (UCM, Madrid, Dept. Phys.) ; Figuera, P (INFN, Catania) ; Fraile, L M (UCM, Madrid, Dept. Phys.) ; Fynbo, H O U (Aarhus U.) ; Gad, A (Aarhus U.) ; Jensen, J (Aarhus U.) et al.
The main goal of this work is to study the structure of the highest energy states in $^8$Be populated following the $\beta^+$-decay and the electron capture (EC) of $^8$B. With this aim, two experiments were performed at ISOLDE-CERN in 2017 and 2018. [...]
2020 - 7 p.
- Published in : J. Phys. : Conf. Ser. 1643 (2020) 012130
Fulltext: PDF;
In : International Nuclear Physics Conference 2019, Glasgow, United Kingdom, 29 Jul - 2 Aug 2019, pp.012130
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8.
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Absolute measurement of the $\beta\alpha$ decay of $^{16}$N
- ISOLDE.
Approved: 30 September 2015.-
Status: Preparation
Experiment: IS605
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9.
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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
Fulltext: PDF;
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