<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">O</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>16</mml:mn></mml:mrow></mml:mmultiscripts><mml:mo>+</mml:mo><mml:mmultiscripts><mml:mi mathvariant="normal">O</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>16</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>molecular structures of positive- and negative-parity superdeformed bands in<mml:math xmlns:mml="http://www.w3.org/1998/Math/Ma

Taniguchi, Yukinobu

doi:10.1103/physrevc.90.054308

Cited by 12 publications

(15 citation statements)

References 34 publications

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“…Note that the SD configurations, which have the structure of 16 O+ 16 O+two valence neutrons in molecular orbitals, have recently been predicted in the AMD+GCM calculations of Ref. [7].…”

Section: Clusterization and Molecular Structuresmentioning

confidence: 82%

“…There is a considerable interest to the study of cluster structures and extremely deformed shapes in light nuclei [1][2][3][4][5][6][7][8][9][10]. Many of these structures are described in terms of clusters, the simplest one being the α-particle [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…It is also important to remember that the cluster description does not correspond to clearly separated α-particles, but generates the meanfield states largely by antisymmetrization [3]. In addition, the studies of molecular structures, which appear in many extremely deformed configurations, have gained considerable interest [2,7,11].…”

Section: Introductionmentioning

confidence: 99%

“…[23]. The investigation of superdeformation and clustering in these nuclei still remains an active field of research within the cluster models (see Refs. [1, 3,4,7,42]). …”

Section: Introductionmentioning

confidence: 99%

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From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

Ray¹,

Afanasjev²

2016

Phys. Rev. C

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From superdeformation to extreme deformation and clusterization in the N ∼ Z nuclei of the A ∼ 40 mass region. A systematic search for extremely deformed structures in the N ∼ Z nuclei of the A ∼ 40 mass region has been performed for the first time in the framework of covariant density functional theory. At spin zero such structures are located at high excitation energies which prevents their experimental observation. The rotation acts as a tool to bring these exotic shapes to the yrast line or its vicinity so that their observation could become possible with future generation of γ−tracking (or similar) detectors such as GRETA and AGATA. The major physical observables of such structures (such as transition quadrupole moments as well as kinematic and dynamic moments of inertia), the underlying single-particle structure and the spins at which they become yrast or near yrast are defined. The search for the fingerprints of clusterization and molecular structures is performed and the configurations with such features are discussed. The best candidates for observation of extremely deformed structures are identified. For several nuclei in this study (such as 36 Ar), the addition of several spin units above currently measured maximum spin of 16 will inevitably trigger the transition to hyper-and megadeformed nuclear shapes.

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“…Note that the SD configurations, which have the structure of 16 O+ 16 O+two valence neutrons in molecular orbitals, have recently been predicted in the AMD+GCM calculations of Ref. [7].…”

Section: Clusterization and Molecular Structuresmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…[23]. The investigation of superdeformation and clustering in these nuclei still remains an active field of research within the cluster models (see Refs. [1, 3,4,7,42]). …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

Ray¹,

Afanasjev²

2016

Phys. Rev. C

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“…The coexistence of positive-and negative-parity SD bands and their structures are discussed, focusing on 16 O + 16 O + valence neutrons in molecular orbitals around the two 16 O cores. Details of this study are reported in [13].…”

Section: Introductionmentioning

confidence: 99%

¹⁶O + ¹⁶O + Valence Neutrons in Molecular Orbitals Structures of Positive- and Negative-Parity Superdeformed Bands in ³⁴S

Taniguchi¹

2015

Proceedings of the Conference on Advances in Radioactive Isotope Science (ARIS2014)

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The structures of superdeformed (SD) states in 34 S have been investigated using the antisymmetrized molecular dynamics and generator coordinate method (GCM). The GCM basis wave functions are calculated via energy variation with a constraint on the quadrupole deformation parameter β. By applying the GCM after parity and angular momentum projections, the coexistence of two positive-and one negative-parity SD bands are predicted, and lowlying states and other deformed bands are obtained. The SD bands have structures of 16 O + 16 O + two valence neutrons in molecular orbitals around the two 16 O cores in a cluster picture. The configurations of the two valence neutrons are δ 2 and π 2 for the positive-parity SD bands and π 1 δ 1 for the negative-parity SD band.

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¹⁶O +¹⁶O molecular structures of positive- and negative-parity superdeformed bands in³⁴S

Taniguchi

2016

EPJ Web of Conferences

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The structures of excited states in 34 S are investigated using the antisymmetrized molecular dynamics and generator coordinate method (GCM). The GCM basis wave functions are calculated via energy variation with a constraint on the quadrupole deformation parameter β. By applying the GCM after parity and angular momentum projections, the coexistence of two positive-and one negative-parity superdeformed (SD) bands are predicted, and low-lying states and other deformed bands are obtained. S isotopes (Z = 16) are suitable nuclei for studying deformation and clustering caused by excitation. S isotopes are expected to be favorable for the formation of SD bands because Z = 16 is considered a magic number of superdeformation. In terms of clustering, S isotopes are key nuclei in the sd shell. S isotopes are analogs of Be isotopes because those isotopes can form systems consisting of two doubly closed shell nuclei ( 16 O and α for S and Be isotopes, respectively) and valence neutrons. In Be isotopes, structures 201 , 0400 (2016) EPJ Web of Conferences

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O16+O16molecular structures of positive- and negative-parity superdeformed bands in
Yukinobu Taniguchi
¹

Cited by 12 publications

References 34 publications

From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

¹⁶O + ¹⁶O + Valence Neutrons in Molecular Orbitals Structures of Positive- and Negative-Parity Superdeformed Bands in ³⁴S

¹⁶O +¹⁶O molecular structures of positive- and negative-parity superdeformed bands in³⁴S

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O16+O16molecular structures of positive- and negative-parity superdeformed bands inYukinobu Taniguchi1

Cited by 12 publications

References 34 publications

From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

From superdeformation to extreme deformation and clusterization in theN≈Znuclei of theA≈40mass region

16O + 16O + Valence Neutrons in Molecular Orbitals Structures of Positive- and Negative-Parity Superdeformed Bands in 34S

16O +16O molecular structures of positive- and negative-parity superdeformed bands in34S

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About

O16+O16molecular structures of positive- and negative-parity superdeformed bands in
Yukinobu Taniguchi
¹

¹⁶O + ¹⁶O + Valence Neutrons in Molecular Orbitals Structures of Positive- and Negative-Parity Superdeformed Bands in ³⁴S

¹⁶O +¹⁶O molecular structures of positive- and negative-parity superdeformed bands in³⁴S