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Akimune, H.; Daito, I.; Fujita, Y.; Fujiwara, M̄.; Greenfield, M. B.; Harakeh, M.N.; Inomata, T.; Jänecke, J.; Katori, K.; Nakayama, S.; Sakai, H.; Sakemi, Y.; Tanaka, M.; Yosoi, M.

doi:10.1103/physrevc.52.604

Cited by 98 publications

(90 citation statements)

References 36 publications

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“…The experimental Gamow-Teller resonance energies are from Refs. [28][29][30][31][32], the spin-dipole resonance energies from Refs. [33,34], and the half-lifes from Ref.…”

Section: Skyrme Functional and Computational Methodsmentioning

confidence: 99%

Global description ofβ−decay in even-even nuclei with the axially-deformed Skyrme finite-amplitude method

2016

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We use the finite amplitude method for computing charge-changing Skyrme-QRPA transition strengths in axially-deformed nuclei together with a modern Skyrme energy-density functional to fit several previously unconstrained parameters in the charge-changing time-odd part of the functional. With the modified functional we then calculate rates of beta-minus decay for all medium-mass and heavy even-even nuclei between the valley of stability and the neutron drip line. We fit the Skyrme parameters to a limited set of beta-decay rates, a set of Gamow-Teller resonance energies, and a set of spin-dipole resonance energies, in both spherical and deformed nuclei. Comparison to available experimental beta-decay rates shows agreement at roughly the same level as in other global QRPA calculations. We estimate the uncertainty in our rates all the way to the neutron drip line through a construction that extrapolates the errors of known beta-decay rates in nuclei with intermediate Q values to less stable isotopes with higher Q values.

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“…The experimental Gamow-Teller resonance energies are from Refs. [28][29][30][31][32], the spin-dipole resonance energies from Refs. [33,34], and the half-lifes from Ref.…”

Section: Skyrme Functional and Computational Methodsmentioning

confidence: 99%

Global description ofβ−decay in even-even nuclei with the axially-deformed Skyrme finite-amplitude method

2016

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“…We use this method as a starting point (we call this Model 1), but explore how the particle-hole parameter g ph (2 − ) changes the values of the 0νββ NMEs by fitting the J π = 2 − channel separately (Model 2) and by using the g ph (2 − ) parameter for all channels excluding the 1 + channel (Model 3). We adjust the g ph (1 + ) and g ph (2 − ) parameters to the available data on Gamow-Teller [50][51][52][53] and isovector spin-dipole giant-resonance energies [53][54][55][56][57][58].…”

Section: A Determination Of Model Parametersmentioning

confidence: 99%

Neutrinoless ββ nuclear matrix elements using isovector spin-dipole Jπ=2− data

et al. 2018

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Ground-state-to-ground-state neutrinoless double-beta (0νββ) decays in nuclei of current experimental interest are revisited. In order to improve the reliability of the nuclear matrix element (NME) calculations for the light Majorana-neutrino mode, the NMEs are calculated by exploiting the newly available data on isovector spindipole (IVSD) J π = 2 − giant resonances. In order to correctly describe the IVSD up to and beyond the giantresonance region, the present computations are performed in extended no-core single-particle model spaces using the spherical version of the proton-neutron quasiparticle random-phase approximation (pnQRPA) with twonucleon interactions based on the Bonn one-boson-exchange G matrix. The appropriate short-range correlations, nucleon form factors, higher-order nucleonic weak currents, and partial restoration of the isospin symmetry are included in the calculations. The results are compared with earlier calculations of Hyvärinen and Suhonen [Phys. Rev. C 91, 024613 (2015)] performed in much smaller single-particle bases without access to the IVSD J π = 2 − giant-resonance data reported here.

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“…In spite of a lot of experimental studies of the GTGR (predominantly via the direct (p,n)-and ( 3 He,t)-reactions), the proton decay of the GTGR in 208 Bi has only been studied by the coincident 208 Pb( 3 He,tp) experiments [4]. The same method has later been used for studying proton decay of the GTGR overtone, isovector giant spin-monopole resonance (IVGSMR (−) ) in 208 Bi [5].…”

Section: Introductionmentioning

confidence: 99%