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Ideguchi, E.; Sarantites, D. G.; Reviol, W.; Afanasjev, A. V.; Devlin, M.; Baktash, C.; Janssens, R. V. F.; Rudolph, Dirk; Axelsson, A.; Carpenter, M. P.; Galindo-Uribarri, A.; LaFosse, D. R.; Lauritsen, T.; Lerma, F.; Lister, C. J.; Reiter, P.; Seweryniak, D.; Weiszflog, M.; Wilson, J. N.

doi:10.1103/physrevlett.87.222501

Cited by 209 publications

(182 citation statements)

References 21 publications

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“…The SD band of 40 Ca is so far identified up to J = 16h [2]. This rotational band is regular and no backbending is currently observed.…”

Section: A a Case Of No Backbending: 40 Camentioning

confidence: 94%

“…After nearly 15 years of systematic search, new "islands" of superdeformation (SD) have been found in the nuclear chart around the A 40 mass region (e.g., 36 Ar [1] and 40 Ca [2]). Surprisingly, these light and symmetric (i.e., N = Z) nuclei in the latest SD "archipelago" are magic and near-magic systems, whose ground states have a spherical shape.…”

Section: Introductionmentioning

confidence: 99%

“…In the 40 Ca paper [2], the cranked RMF (relativistic mean-field) method was applied. Both of the methods ignored the pairing correlation, so the energy spectra of the low-spin members (J < ∼ 10h) in the SD bands were not well reproduced.…”

Section: Introductionmentioning

confidence: 99%

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Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

2007

Phys. Rev. C

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Superdeformed states in light N = Z nuclei are studied by means of the self-consistent cranking calculation (i.e., the P+QQ model based on the cranked Hartree-Fock-Bogoliubov method). Analyses are given for two typical cases of superdeformed bands in the A 40 mass region, that is, bands where backbending is absent ( 40 Ca) or present ( 36 Ar). Investigations are carried out particularly for the following points: cross-shell excitations in the sd and pf shells; the role of the g 9/2 and d 5/2 orbitals; the effect of nuclear pairing; and the interplay between triaxiality and band termination.

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“…The SD band of 40 Ca is so far identified up to J = 16h [2]. This rotational band is regular and no backbending is currently observed.…”

Section: A a Case Of No Backbending: 40 Camentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

2007

Phys. Rev. C

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“…The energy of the shoulder that can be seen at a β 2 value around 0.5 is significantly lowered for the tensor interactions T44 and T62. This shoulder can be related to the existence of a superdeformed band in 40 Ca [41,42].…”

Section: Camentioning

confidence: 99%

Tensor part of the Skyrme energy density functional. II. Deformation properties of magic and semi-magic nuclei

et al. 2009

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We study systematically the impact of the time-even tensor terms of the Skyrme energy density functional, i.e. terms bilinear in the spin-current tensor density, on deformation properties of closed shell nuclei corresponding to 20, 28, 40, 50, 82, and 126 neutron or proton shell closures. We compare results obtained with three different families of Skyrme parameterizations whose tensor terms have been adjusted on properties of spherical nuclei:(i)T IJ interactions proposed in the first paper of this series [T. Lesinski et al., Phys. Rev. C 76, 014312 (2007)] which were constructed through a complete readjustment of the rest of the functional (ii) parameterizations whose tensor terms have been added perturbatively to existing Skyrme interactions, with or without readjusting the spin-orbit coupling constant. We analyse in detail the mechanisms at play behind the impact of tensor terms on deformation properties and how studying the latter can help screen out unrealistic parameterizations. It is expected that findings of the present paperare to a large extent independent of remaining deficiencies of the central and spin-orbit interactions, and will be of great value for the construction of future, improved energy functionals.

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“…Because of recent progress in experimental techniques, it has been possible to determine that strongly deformed states exist in 36 Ar and 40 Ca, by the observation of γ-ray cascades typical of rotational bands [3,4]. These bands are called super-deformed (SD) bands.…”

mentioning

confidence: 99%

Cluster formations in deformed states forSi28andS32
Ichikawa
¹
,
Kanada-En’yo
²
,
Möller
³

2011
Phys. Rev. C
29
9
73
0
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We study cluster formation in strongly deformed states for 28 Si and 32 S using a macroscopic-microscopic model. The study is based on calculated total-energy surfaces, which are the sums of deformation-dependent macroscopic-microscopic potential-energy surfaces and rotational-energy contributions. We analyze the angular-momentum-dependent total-energy surfaces and identify the normal-and super-deformed states in 28 Si and 32 S, respectively. We show that at sufficiently high angular momenta strongly deformed minima appear. The corresponding microscopic density distributions show cluster structure that closely resemble the 16 O+ 12 C and 16 O+ 16 O configurations. At still higher deformations, beyond the minima, valleys develop in the calculated surfaces. These valleys lead to mass divisions that correspond to the target-projectile configurations for which molecular resonance states have been observed. We discuss the relation between the one-body deformed minima and the two-body molecular-resonance states.

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Superdeformation in the Doubly Magic NucleusC2040a20

Cited by 209 publications

References 21 publications

Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

Tensor part of the Skyrme energy density functional. II. Deformation properties of magic and semi-magic nuclei

Cluster formations in deformed states forSi28andS32
Ichikawa
¹
,
Kanada-En’yo
²
,
Möller
³

2011
Phys. Rev. C
29
9
73
0
View full text Add to dashboard Cite

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Superdeformation in the Doubly Magic NucleusC2040a20

Cited by 209 publications

References 21 publications

Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

Description of superdeformed bands in lightN=Znuclei using the cranked Hartree-Fock-Bogoliubov method

Tensor part of the Skyrme energy density functional. II. Deformation properties of magic and semi-magic nuclei

Cluster formations in deformed states forSi28andS32Ichikawa1, Kanada-En’yo2, Möller3 2011Phys. Rev. C299730View full textAdd to dashboardCite

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Cluster formations in deformed states forSi28andS32
Ichikawa
¹
,
Kanada-En’yo
²
,
Möller
³

2011
Phys. Rev. C
29
9
73
0
View full text Add to dashboard Cite