Deformation of C isotopes

Kanada-En’yo, Yoshiko

doi:10.1103/physrevc.71.014310

Cited by 84 publications

(139 citation statements)

References 24 publications

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“…The deviation from the spherical p 1/2 and d 5/2 orbits owes to prolate deformation of this state. Different from the AMD results by Kanada-En'yo [36] in which the different proton and neutron deformation of 16 C was discussed (i.e., the proton is oblately deformed, while the neutron is prolately deformed), the present result shows that the both proton and neutron are prolately deformed in the ground state. This difference may be attributed to the difference of the effective interaction used in this study and Ref.…”

Section: Resultscontrasting

confidence: 99%

“…This difference may be attributed to the difference of the effective interaction used in this study and Ref. [36]. It is known that the deformation of the 16 C strongly depends on the effective interaction.…”

Section: Resultsmentioning

confidence: 78%

“…The member states of the ground band shown by circles in [40][41][42][43][44] that ranges from 0.92 to 4.2 e 2 fm 4 . There have been many discussions about the possible hindrance [36,37,44] of B(E2), and in the case of the AMD study [36], the origin of the hindrance was attributed to the different proton and neutron deformation. On the other hand, the present results does not describe it as mentioned before, and it leads to the overestimation of B(E2) ( Table III).…”

Section: B Stability Of the Linear-chain Statementioning

confidence: 99%

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3αclustering in excited states ofC16

2014

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The α-cluster states of 16 C are investigated by using antisymmetrized molecular dynamics. It is shown that two different types of α-cluster states exist: triangular and linear-chain states. The former has an approximate isosceles triangular configuration of α particles surrounded by four valence neutrons occupying the sd shell, while the latter has the linearly aligned α particles with (sd) 2 (pf ) 2 neutrons. It is found that the structure of the linear-chain state is qualitatively understood in terms of the 3/2 − π and 1/2 − σ molecular orbits as predicted by molecular-orbital model, but there exists a non-negligible 10 Be + α + 2n correlation. The bandhead energies of the triangular and linear-chain rotational bands are 8.0 and 15.5 MeV, and the latter is close to the 4 He + 12 Be and 6 He + 10 Be threshold energies. It is also shown that the linear-chain state becomes the yrast state at J π = 10 + with E x = 27.8 MeV owing to its very large moment of inertia comparable with hyperdeformation.

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Section: Resultscontrasting

confidence: 99%

Section: Resultsmentioning

confidence: 78%

Section: B Stability Of the Linear-chain Statementioning

confidence: 99%

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3αclustering in excited states ofC16

2014

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“…Several works have been done already experimentally [3,4,5,6] and theoretically [7,8,9,10,11]. For example, the structure of 22 C has been studied by two (W.H.…”

Section: Introductionmentioning

confidence: 99%

Erratum: Reaction cross sections of carbon isotopes incident on a proton [Phys. Rev. C 77, 034607 (2008)]

Abu-Ibrahim¹,

Horiuchi²,

Kohama³

et al. 2009

Phys. Rev. C

133

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We systematically study total reaction cross sections of carbon isotopes with N = 6-16 on a proton target for wide range of incident energies, putting an emphasis on the difference from the case of a carbon target. The analysis includes the reaction cross sections of 19,20,22 C at 40 AMeV, the data of which have recently been measured at RIKEN. The Glauber theory is used to calculate the reaction cross sections. To describe the intrinsic structure of the carbon isotopes, we use a Slater determinant generated from a phenomenological mean-field potential, and construct the density distributions. To go beyond the simple mean-field model, we adopt two types of dynamical models: One is a core+n model for odd-neutron nuclei, and the other is a core+n+n model for 16 C and 22 C. We propose empirical formulas which are useful in predicting unknown cross sections.

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“…The present extended 7α-cluster Brink model is based on the studies of 28 Si with the Brink-Bloch 7α-cluster model [9] and also with the AMD (antisymmetrized molecular dynamics) method [10]. This extended 7α-cluster Brink model can describe both the jj-coupling shell model limit at Λ c = 1 that is described the spherical (0d 5/2 ) 12 configuration, and the oblate deformation limit of the shell model configuration at Λ c = 0.…”

Section: Extended Cluster Model With Structure Change Of 28 Si Corementioning

confidence: 99%

The structure change of the ²⁸Si core in ³²S+α cluster structure

Yoshida

Kanada-En’yo

Kobayashi

2014

J. Phys.: Conf. Ser.

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Abstract. The28 Si+α cluster structure was studied. We construct the 28 Si+α cluster model, where structure change of the 28 Si core and the α-cluster breaking are taken into account. It was found that, in the 28 Si+α cluster system having α-cluster at the surface of the 28 Si core, the structure change of the 28 Si core is energetically rather important while the α-cluster breaking is not significant. IntroductionThe nuclear clustering plays important roles in ground and excited states of light nuclei. Excited states having core+α cluster structure called the α-cluster excited state are known to exist in such nuclei as [5,6]. In order to understand structure of the 28 Si+α excited states by solving the core-α relative motion, it is important to take into account the structure change of the core nuclei and the breaking of the α-cluster at the nuclear surface. However, in conventional cluster models, inner clusters are usually assumed and the cluster excitation effects are not considered. Our final goal is to study the 28 Si+α excited states of 32 S. To this end, for the first step, we investigate the structure change of the 28 Si core and the α-cluster breaking in the 28 Si+α cluster structure.

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Deformation of C isotopes

Cited by 84 publications

References 24 publications

3αclustering in excited states ofC16

3αclustering in excited states ofC16

Erratum: Reaction cross sections of carbon isotopes incident on a proton [Phys. Rev. C 77, 034607 (2008)]

The structure change of the ²⁸Si core in ³²S+α cluster structure

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Deformation of C isotopes

Cited by 84 publications

References 24 publications

3αclustering in excited states ofC16

3αclustering in excited states ofC16

Erratum: Reaction cross sections of carbon isotopes incident on a proton [Phys. Rev. C 77, 034607 (2008)]

The structure change of the 28Si core in 32S+α cluster structure

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The structure change of the ²⁸Si core in ³²S+α cluster structure