Observations of the Gamow-Teller resonance in the rare-earth nuclei above<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Gd</mml:mi><mml:mprescripts/><mml:none/><mml:mn>146</mml:mn></mml:mmultiscripts></mml:math>populated in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>β</mml:mi></mml:math>decay

Nácher, E.; Rubio, B.; Algora, A.; Cano‐Ott, D.; Taı́n, J. L.; Gadea, A.; Agramunt, J.; Gierlik, M.; Karny, M.; Janas, Z.; Roeckl, E.; Blazhev, A.; Collatz, R.; Döring, J.; Hellström, M.; Hu, Z.; Kirchner, R.; Mukha, I.; Plettner, C.; Shibata, M.; Rykaczewski, K. P.; Batist, L.; Moroz, F. V.; Wittmann, V.

doi:10.1103/physrevc.93.014308

Cited by 6 publications

(3 citation statements)

References 48 publications

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“…This experimental problem, the so-called Pandemonium effect [29], can be avoided with the total absorption γ -ray spectroscopy (TAGS) technique. Experiments performed in the past at GSI, at the CERN On-Line Isotope Mass Separator (ISOLDE) facility, and at the Ion Guide Isotope Separator OnLine facility (IGISOL) in Jyväskylä using this technique have confirmed its potential [24][25][26][27][28][30][31][32][33][34]. Moreover, methods were developed by the Valencia group to extract precise β intensities from the data [35][36][37][38].…”

Section: B Total Absorption Spectroscopymentioning

confidence: 86%

Experimental study of Tc100 β decay with total absorption γ -ray spectroscopy

Guadilla¹,

Algora²,

Taín³

et al. 2017

Phys. Rev. C

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The β decay of 100 Tc has been studied by using the total absorption γ -ray spectroscopy technique at the Ion Guide Isotope Separator On-Line facility in Jyväskylä. In this work the new Decay Total Absorption γ -ray Spectrometer in coincidence with a cylindrical plastic β detector has been employed. The β intensity to the ground state obtained from the analysis is in good agreement with previous high-resolution measurements. However, differences in the feeding to the first-excited state as well as weak feeding to a new level at high excitation energy have been deduced from this experiment. Theoretical calculations performed in the quasiparticle random-phase approximation framework are also reported. Comparison of these calculations with our measurement serves as a benchmark for calculations of the double β decay of 100 Mo.

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Section: B Total Absorption Spectroscopymentioning

confidence: 86%

Experimental study of Tc100 β decay with total absorption γ -ray spectroscopy

Guadilla¹,

Algora²,

Taín³

et al. 2017

Phys. Rev. C

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“…On the other side, measurements of GT + transitions also provided data for 45 Sc(t, 3 He + γ) [453] and 56 Fe(t, 3 He) [454] reactions. GT transitions have also been explored in β-decay of rare earth nuclei above 146 Gd [455].…”

Section: Gamow-teller Resonancementioning

confidence: 99%

Nuclear equation of state from ground and collective excited state properties of nuclei

Roca-Maza

Paar

2018

Progress in Particle and Nuclear Physics

195

110

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This contribution reviews the present status on the available constraints to the nuclear equation of state (EoS) around saturation density from nuclear structure calculations on ground and collective excited state properties of atomic nuclei. It concentrates on predictions based on self-consistent mean-field calculations, which can be considered as an approximate realization of an exact energy density functional (EDF). EDFs are derived from effective interactions commonly fitted to nuclear masses, charge radii and, in many cases, also to pseudo-data such as nuclear matter properties. Although in a model dependent way, EDFs constitute nowadays a unique tool to reliably and consistently access bulk ground state and collective excited state properties of atomic nuclei along the nuclear chart as well as the EoS. For comparison, some emphasis is also given to the results obtained with the so called ab initio approaches that aim at describing the nuclear EoS based on interactions fitted to few-body data only. Bridging the existent gap between these two frameworks will be essential since it may allow to improve our understanding on the diverse phenomenology observed in nuclei. Examples on observations from astrophysical objects and processes sensitive to the nuclear EoS are also briefly discussed. As the main conclusion, the isospin dependence of the nuclear EoS around saturation density and, to a lesser extent, the nuclear matter incompressibility remain to be accurately determined. Experimental and theoretical efforts in finding and measuring observables specially sensitive to the EoS properties are of paramount importance, not only for low-energy nuclear physics but also for nuclear astrophysics applications. 7 The expression introduced by Migdal in Ref. [43] neglected the term in a AS . 8 From a macroscopic picture it would correspond to an isotropic compression. 9 From a macroscopic picture it would correspond to a non-isotropic compression. 15

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“…The second work concerns the beta decays of a number of rare-earth nuclei [14]. In the b + -decay of nuclei with Z < N, Fermi transitions are forbidden and GT transitions are, in general, severely hindered because in transforming the available protons into neutrons the corresponding allowed orbitals for neutrons are occupied.…”

Section: The Historymentioning

confidence: 99%

Beta decay studies with total absorption spectroscopy and theLucreciaspectrometer at ISOLDE

Rubio

Gelletly

Algora

et al. 2017

J. Phys. G: Nucl. Part. Phys.

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Beta decay studies with the total absorption technique B Rubio, W Gelletly, E Nácher et al.Towards detailed knowledge of atomic nuclei -the past, present and future of nuclear structure investigations at GSI J Gerl, M Grska and H J Wollersheim Beta decay studies with total absorption spectroscopy and the Lucrecia spectrometer at ISOLDE Here we present the experimental activities carried out at ISOLDE with the total absorption spectrometer Lucrecia, a large 4π scintillator detector designed to absorb a full gamma cascade following beta decay. This spectrometer is designed to measure β-feeding to excited states without the systematic error called Pandemonium. The set up allows the measurement of decays of very short half life. Experimental results from several campaigns, that focus on the determination of the shapes of β-decaying nuclei by measuring their β decay strength distributions as a function of excitation energy in the daughter nucleus, are presented.

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Observations of the Gamow-Teller resonance in the rare-earth nuclei aboveGd146populated inβdecay

Cited by 6 publications

References 48 publications

Experimental study of Tc100 β decay with total absorption γ -ray spectroscopy

Experimental study of Tc100 β decay with total absorption γ -ray spectroscopy

Nuclear equation of state from ground and collective excited state properties of nuclei

Beta decay studies with total absorption spectroscopy and theLucreciaspectrometer at ISOLDE

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