Measurement of ejectile polarization in heavy ion reactions via beta-ray asymmetry

Asahı, K.; Ishihara, M.; Kamitsubo, H.; Takahashi, Naohiko; Nojiri, Y.; Minamisono, T.; Mizobuchi, Akira; Sugimoto, Katsuhisa

doi:10.1016/0167-5087(84)90300-4

Cited by 12 publications

(4 citation statements)

References 33 publications

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“…The present achievement promises successful application of the method to heavier Mg isotopes. The results on 29 Mg and 30 Mg will be published soon.…”

Section: Discussionmentioning

confidence: 99%

“…Here, τ is the mixing ratio defined by where C V and C A are the Fermi and the Gamow-Teller coupling constants, respectively, and 1 and σ are the corresponding nuclear matrix elements [29]. In the case of the neutron-rich nucleus 28 Na, the β decays to the levels below the neutron threshold are mostly the Gamow-Teller (GT) transitions.…”

Section: A Principle Of Spin-parity Assignmentmentioning

confidence: 99%

“…However, the present status of the spin-parity assignments are not sufficient in Mg isotopes with A 29. Spin-parity assignments have been proposed for the following levels: 29 Mg: g.s. ( [15], and 4.181 MeV (5) [15]; 31 Mg: g.s.…”

Section: Introductionmentioning

confidence: 99%

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Structure of28Mg studied byβ-decay spectroscopy of spin-polarized28Na: The first step of systematic studies on neutron-rich Mg isotopes

et al. 2012

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As the first step of systematic studies on neutron-rich Mg isotopes, the structure of 28 Mg has been investigated by β-decay spectroscopy of spin-polarized 28 Na at TRIUMF. Spin-parity assignments have been successfully performed for levels in 28 Mg by taking advantage of the anisotropic β decay. Previous assignments for three levels were reconfirmed. New assignments were performed for four levels including a newly found 2 + level at 7.461 MeV. The experimental results were compared, on a level-by-level basis, with the shell-model calculation in the model space restricted to the sd shell. Overall good agreement between the experimental and theoretical results indicates dominance of the normal configurations in most of the 28 Mg levels. High performance of the present method promises successful application to heavier Mg isotopes to elucidate the shell evolution in the region of the N = 20 island of inversion.

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“…The present achievement promises successful application of the method to heavier Mg isotopes. The results on 29 Mg and 30 Mg will be published soon.…”

Section: Discussionmentioning

confidence: 99%

Section: A Principle Of Spin-parity Assignmentmentioning

confidence: 99%

See 1 more Smart Citation

Structure of28Mg studied byβ-decay spectroscopy of spin-polarized28Na: The first step of systematic studies on neutron-rich Mg isotopes

et al. 2012

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“…If the reaction products are selected at an angle with respect to the incoming projectile beam, a spin-polarized ensemble can be obtained, reaching polarizations up to 40% [139]. • In transfer reactions combined with IF mass separation, high amounts of spin-orientation have been established (∼30-40% [140]) but very rarely such reactions have been used to study moments of exotic nuclei. That is because the production yield of exotic nuclei is obviously higher in the intermediate-and high-energy projectile-fragmentation reactions.…”

Section: 24mentioning

confidence: 99%