The ${}^{150}$Nd(${}^3$He,$t$) and ${}^{150}$Sm($t$,${}^3$He) reactions with applications to $\beta \beta$ decay of ${}^{150}$Nd

Abstract

The ${}^{150}$Nd(${}^3$He,$t$) reaction at 140 MeV/u and ${}^{150}$Sm($t$,${}^3$He) reaction at 115 MeV/u were measured, populating excited states in ${}^{150}$Pm. The transitions studied populate intermediate states of importance for the (neutrinoless) $\beta \beta$ decay of ${}^{150}$Nd to ${}^{150}$Sm. Monopole and dipole contributions to the measured excitation-energy spectra were extracted by using multipole decomposition analyses. The experimental results were compared with theoretical calculations obtained within the framework of Quasiparticle Random-Phase Approximation (QRPA), which is one of the main methods employed for estimating the half-life of the neutrinoless $\beta \beta$ decay ($0\nu \beta \beta$) of ${}^{150}$Nd. The present results thus provide useful information on the neutrino responses for evaluating the $0\nu \beta \beta$ and $2\nu \beta \beta$ matrix elements. The $2\nu \beta \beta$ matrix element calculated from the Gamow-Teller transitions through the lowest $1^{+}$ state in the intermediate nucleus is maximally about half of that deduced from the half-life measured in $2\nu \beta \beta$ direct counting experiments and at least several transitions through $1^{+}$ intermediate states in ${}^{150}$Pm are required to explain the $2\nu \beta \beta$ half-life. Because Gamow-Teller transitions in the ${}^{150}$Sm($t$,${}^3$He) experiment are strongly Pauli-blocked, the extraction of Gamow-Teller strengths was complicated by the excitation of the $2\hslash \omega$, $\Delta L=0$, $\Delta S=1$ isovector spin-flip giant monopole resonance (IVSGMR). However, the near absence of Gamow-Teller transition strength made it possible to cleanly identify this resonance, and the strength observed is consistent with the full exhaustion of the non-energy-weighted sum rule for the IVSGMR.

18 pages, 13 figures, 2 tables

References in corpus (12)

• Double Beta Decay, Majorana Neutrinos, and Neutrino Mass
• Energy density functional study of nuclear matrix elements for neutrinoless $\beta \beta$ decay
• Precise half-life values for two neutrino double beta decay
• Nuclear Structure Relevant to Neutrinoless Double Beta Decay: 76Ge and 76Se
• Nuclear Structure Relevant to Neutrinoless Double Beta Decay: the Valence Protons in 76Ge and 76Se
• Neutrinoless double beta decay of deformed nuclei within QRPA with realistic interaction
• Two-neutrino double beta decay of deformed nuclei within QRPA with realistic interaction
• On the extraction of weak transition strengths via the (3He,t) reaction at 420 MeV
• Neutrinoless double beta decay of ${}^{150}$Nd with account for deformation
• Gamow-Teller Unit Cross Sections for (t,3He) and (3He,t) Reactions
• Gamow-Teller transitions to 64-Cu measured using the 64-Zn(t,3-He) reaction
• Spectroscopy of 13B via the 13C(t,3He) reaction at 115 AMeV

Cited by in corpus (28)

• Theory of neutrinoless double beta decay
• Phase space factors for double-$\beta$ decay
• Neutrinoless double beta decay and neutrino mass
• The NUMEN project: NUclear Matrix Elements for Neutrinoless double beta decay
• Heavy-ion double charge exchange reactions: a tool towards 0v\b{eta}\b{eta} nuclear matrix elements
• Nuclear matrix elements for neutrinoless double-beta decay and double-electron capture
• Beta decay of deformed r-process nuclei near A = 80 and A= 160, including odd-A and odd-odd nuclei, with the Skyrme finite-amplitude method
• The charged current neutrino cross section for solar neutrinos, and background to \BBz\ experiments
• $\beta$-decay properties for neutron-rich Kr-Tc isotopes from deformed pn-QRPA calculations with realistic forces
• Partial restoration of isospin symmetry for neutrinoless double beta decay in the deformed nuclear system of ${}^{150}$Nd
• Nuclear matrix element for two neutrino double beta decay from 136Xe
• Spin dipole nuclear matrix elements for double beta decay nuclei by charge-exchange reactions
• Solar neutrino interactions with the double beta decay nuclei of ${}^{82}$Se, ${}^{100}$Mo and ${}^{150}$Nd
• Neutrinoless double-beta decay from an effective field theory for heavy nuclei
• Neutrino nuclear response and photo nuclear reaction
• Experimental Constraint on Stellar Electron-Capture Rates from the ${}^{88}\text{Sr}(t,{}^3\text{He}+\gamma ){}^{88}\text{Rb}$ reaction at 115 MeV/u
• One-neutron transfer reaction in the ${}^{18}$O + ${}^{48}$Ti collision at 275 MeV
• Role of momentum transfer in the quenching of Gamow-Teller strength
• Searches for neutrinoless double beta decay
• Gamow-Teller properties of the double beta-decay partners 116Cd(Sn) and 150Nd(Sm)
• Two-neutrino $\beta \beta$ decay of ${}^{136}$Xe to the first excited $0^{+}$ state in ${}^{136}$Ba
• Real-time spectroscopy of solar pp neutrinos using Nd-150
• Investigation of the Lorentz invariance violation in two-neutrino double-beta decay
• Solar Neutrinos as Background to Neutrinoless Double-beta Decay Experiments
• Nuclear structure calculations for two-neutrino double-beta decay
• Effect of Pauli principle on the deformed QRPA calculations and its consequence in the $\beta$-decay calculations of deformed even-even nuclei
• Impact of the Brink Axel Hypothesis on Unique First Forbidden \b{eta} transitions for r process nuclei
• Electromagnetic transitions from isobaric analogue states to study nuclear matrix elements for double beta decays and astro-neutrino inverse beta decays