Proton shell structure of mass 28–32 nuclei

Mackh, H.; Mairle, G.; Wagner, Gerhard

doi:10.1007/bf01668607

Cited by 72 publications

(8 citation statements)

References 33 publications

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“…The deviation of the spectroscopic factors and the relatively small rms radius for the transition leading to the 3.42 MeV excited state in 47 K might be ascribed to some unresolved 1f 7/2 strength at 3.4 MeV [13] but in the scarce literature on the level scheme of 47 K no 7/2 − states have been reported so far. The ratio of the spectroscopic factors given in Ref.…”

Section: Bswf Probing Functionsmentioning

confidence: 99%

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A consistent analysis of (e,e′p) and (d,3He) experiments

Kramer¹,

Blok²,

Lapikás³

2001

Nuclear Physics A

206

242

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The apparent discrepancy between spectroscopic factors obtained in (e,e ′ p) and (d, 3 He) experiments is investigated. This is performed first for 48 Ca(e,e ′ p) and 48 Ca(d, 3 He) experiments and then for other nuclei. It is shown that the discrepancy disappears if the (d, 3 He) experiments are re-analyzed with a non-local finite range DWBA analysis with a bound-state wave function that is obtained from (e,e ′ p) experiments.Key words: NUCLEAR REACTIONS 48 Ca(e,e ′ p), E = 440 MeV; measured ρ(E m , p m ); deduced spectroscopic factors; comparison of spectroscopic factors from (e,e ′ p) and (d, 3 He).

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Section: Bswf Probing Functionsmentioning

confidence: 99%

“…Angular distributions and asymmetries were measured for the first three positive parity transitions, leading to 1/2 + , 3/2 + and 5/2 + states in 47 K, see Fig. 6.…”

Section: Bswf Probing Functionsmentioning

confidence: 99%

A consistent analysis of (e,e′p) and (d,3He) experiments

Kramer¹,

Blok²,

Lapikás³

2001

Nuclear Physics A

206

242

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“…16 experiments on the 28 Si target and 19 experiments on the 30 Si target were 28 Si from one-nucleon transfer reaction, adopted in the joint numerical analysis. The spectroscopic strengths G nlj for a) pickup of neutron [30] and proton [31] and b) stripping of neutron [32] and proton [33]. [37,38] used in our analysis in order to obtain single-particle energies and corresponding occupation probabilities of nucleon subshells in 28,30 Si.…”

Section: Evaluation Based On Experimental Spectroscopy 21 Joint Analmentioning

confidence: 99%

“…Total pickup spectroscopic strength G − sd value for the 1d2s shell should reveal the possible total number of protons or neutrons N p for the corresponding isotope 30 Si from one-nucleon transfer reaction, adopted in the joint numerical analysis. The spectroscopic strengths G nlj for a) pickup of neutron [37] and proton [31] and b) stripping of neutron [36] and proton [35].…”

Section: Evaluation Based On Experimental Spectroscopy 21 Joint Analmentioning

confidence: 99%

Evolution of single-particle structure of silicon isotopes

et al. 2018

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Abstract. New data on proton and neutron single-particle energies E nlj of Si isotopes with neutron number N from 12 to 28 as well as occupation probabilities N nlj of single particle states of stable isotopes 28,30 Si near the Fermi energy were obtained by the joint evaluation of the stripping and pick-up reaction data and excited state decay schemes of neighboring nuclei. The evaluated data indicate following features of single-particle structure evolution: persistence of Z = 14 subshell closure with N increase, the new magicity of the number N = 16, and the conservation of the magic properties of the number N = 20 in Si isotopic chain. The features were described by the dispersive optical model. The calculation also predicts the weakening of N = 28 shell closure and demonstrates evolution of bubble-like structure of the proton density distributions in neutron-rich Si isotopes.PACS. 21.10.Pc Single-particle levels and strength functions -24.10.Ht Optical and diffraction models

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“…The experimental findings from these measurements could provide the necessary testing ground for the shell model predictions in the valence sd-model space [8,9]. Spectroscopic investigation on 29 Al was also carried out by using proton pickup reactions such as 30 Si(t,α) [10] and 30 Si(d, 3 He) [11]. The levels up to E x ≈ 5 MeV could be established from these studies.…”

Section: Introductionmentioning

confidence: 99%

Possible onset of multifaceted excitation modes in Al29

et al. 2018

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This paper reports on an investigation on the level structure of the odd-mass 29 Al nucleus populated via heavy-ion induced fusion evaporation reaction. Rotational sequences with fast magnetic dipole transitions have been identified. These sequences exhibit the essential characteristic features of magnetic-rotation-like behavior which has been corroborated through lifetime measurements using the DSAM. The sequences also show features exhibited by axially deformed nuclei. Thus, the level structure presents the possibility of existence of multifaceted excitation modes in 29 Al, which are believed to be the first of its kind observed in the A ≈ 30 region. Shell model calculations, carried out within the sd-model space, qualitatively reproduce the experimental observations.

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Proton shell structure of mass 28–32 nuclei

Cited by 72 publications

References 33 publications

A consistent analysis of (e,e′p) and (d,3He) experiments

A consistent analysis of (e,e′p) and (d,3He) experiments

Evolution of single-particle structure of silicon isotopes

Possible onset of multifaceted excitation modes in Al29

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