On the nature of low-lying collective 1+ states in the heavy deformed nuclei 154Sm, 156Gd and 164Dy and in the shell nucleus 46Ti

Djalali, C.; Marty, Nicolas; Morlet, M.; Willis, A.; Jourdain, J.C.; Bohle, D.; Hartmann, U.; Küchler, G.; Richter, A.; Caskey, G.; Crawley, G.M.; Galonsky, A.

doi:10.1016/0370-2693(85)90324-7

Cited by 88 publications

(19 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Information on spin M 1 excitations can be extracted from both leptonic and hadronic probes. In stable nuclei, the combined analysis of electron, photon, and proton scattering data has provided reliable information on orbital and spin M 1 strength distributions [28]. In principle, the same type of experiments could be performed on the proton rich nuclei considered here.…”

Section: Discussionmentioning

confidence: 91%

Spin–isospin excitations and half-lives of medium-mass deformed nuclei

2001

View full text Add to dashboard Cite

A selfconsistent approach based on a deformed HF+BCS+QRPA method with density-dependent Skyrme forces is used to describe β + -decay properties in even-even deformed proton rich nuclei. Residual spin-isospin forces are included in the particle-hole and particle-particle channels. The quasiparticle basis contains neutron-neutron and proton-proton pairing correlations in the BCS approach, while neutron-proton pairing interaction is treated as a residual force in QRPA. We discuss the sensitivity of Gamow-Teller strength distributions and β + /EC half-lives to deformation, pairing and the strength of the particle-particle interaction. The dependence on deformation is also compared to that of spin M 1 strength distributions.

show abstract

Section: Discussionmentioning

confidence: 91%

Spin–isospin excitations and half-lives of medium-mass deformed nuclei

2001

View full text Add to dashboard Cite

show abstract

“…The predictions of the KB3G calculation are consistently smaller for M L and M S and a larger R value of about 2.6 is predicted. This may be compared to experimental findings of R ≈ 1 in 46 Ti and R > 4 in deformed rare-earth nuclei [49].…”

Section: Shell-model Description Of the M1 Response In 56 Fementioning

confidence: 86%

Low-energy magnetic dipole response in 56Fe from high-resolution electron scattering

et al. 2003

Self Cite

View full text Add to dashboard Cite

The 56 Fe(e, e ) reaction has been studied for excitation energies up to about 8 MeV and momentum transfers q 0.4-0.55 fm −1 at the Darmstadt electron linear accelerator (DALINAC) with kinematics emphasizing M1 transitions. Additional data have been taken for q 0.8-1.7 fm −1 at the electron accelerator NIKHEF, Amsterdam. A PWBA analysis allows spin and parity determination of the excited states. For M1 excitations, transition strengths are derived with a DWBA analysis using shell-model form factors. The resulting B(M1) strength distribution is compared to shell-model calculations employing different effective interactions. The form factor of the prominent low-lying M1 transition at 3.449 MeV demonstrates its dominant orbital nature. It represents a major part of the scissors mode in 56 Fe.

show abstract

“…Zamick was the first to predict low lying dipole excitations with large orbital contribution to the transition strength [9] in 0f7/2 shell nuclei and such an M1 excitation was indeed found subsequently [10] in 46Ti. In this paper we investigate experimentally the sitdation in 46Ti and 48Ti.…”

Section: Introductionmentioning

confidence: 91%

“…In a proton scattering experiment on 46Ti, 48Ti and 5~ performed by a DarmstadtOrsay-collaboration [10,53] …”

Section: M(1)/m(s)> 11mentioning

confidence: 99%

Electroexcitation of magnetic dipole and other modes in46Ti and48Ti

Guhr

Diesener

Richter

et al. 1990

Z. Physik A - Atomic Nuclei

Self Cite

View full text Add to dashboard Cite

With high-resolution inelastic electron scattering measurements on 46Ti and 48Ti the excitation mechanism of the transition into low lying J~ = 1 + states is investigated. The experimental evidence of considerable contribution of the orbital part of the M1 operator to the total transition strength is given by a model dependent analysis of form factors. The possibility of physical relationship to low lying J~=l + states in the rare earth nuclei is discussed in various models. Moreover E2 form factors and good candidates for M3 form factors are presented.

show abstract

On the nature of low-lying collective 1+ states in the heavy deformed nuclei 154Sm, 156Gd and 164Dy and in the shell nucleus 46Ti

Cited by 88 publications

References 18 publications

Spin–isospin excitations and half-lives of medium-mass deformed nuclei

Spin–isospin excitations and half-lives of medium-mass deformed nuclei

Low-energy magnetic dipole response in 56Fe from high-resolution electron scattering

Electroexcitation of magnetic dipole and other modes in46Ti and48Ti

Contact Info

Product

Resources

About