Relativistic Coulomb excitation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi mathvariant="normal">Mg</mml:mi><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>32</mml:mn></mml:mrow></mml:mmultiscripts></mml:math>near 200 MeV/nucleon with a thick target

Li, K.; Ye, Y.; Motobayashi, T.; Scheit, H.; Doornenbal, P.; Takeuchi, Satoshi; Aoi, N.; Matsushita, M.; Takeshita, Eri; Pang, D. Y.; Sakuraï, H.

doi:10.1103/physrevc.92.014608

Cited by 14 publications

(13 citation statements)

References 30 publications

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“…[39] were employed, which were demonstrated to lead to a good agreement with the known B(E2)↑ value for 32 Mg in Ref. [35]. For inelastic scattering on the carbon target, respective nuclear deformation lengths of δ N = 1.98(11) and 1.93(11) fm were determined for 30 Ne and 36 Mg, corresponding to nuclear deformation parameters of β N = 0.53(2) and 0.49 (2), assuming the radius R = , with β C = δ C /R and R = 1.2A 1/3 fm, is applied.…”

Section: Resultssupporting

confidence: 54%

“…An analysis of the feeding from levels between 2 and 5 MeV for the well-known nucleus 32 Mg yielded 14(3)% at similar beam energies [35]. In the present case, the proximity of the neutron drip-line and the low neutron separation energies of 3430(300) and 3330(490) keV for 30 Ne and 36 Mg [36] should reduce this contribution by more than 50%.…”

Section: Resultsmentioning

confidence: 46%

“…Maximum deformation is expected at around [34][35][36] Mg with β ∼ 0.51-0.55, thus lower than for the neon isotopes and within experimental reach. However, given the uncertainties of the present and the earlier work [15,16] as well as the anticipated shallow B(E2)↑ maximum, the nucleus with maximum collectivity and/or deformation parameter remains unknown.…”

Section: Discussionmentioning

confidence: 69%

“…[35] at similar beam energies was followed. Measured cross sections were compared to the calculations with the code ECIS97 [37] using the rotational model.…”

Section: Resultsmentioning

confidence: 99%

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Mapping the deformation in the “island of inversion”: Inelastic scattering ofNe30andMg36at intermediate energies

et al. 2016

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The transition strengths of the first-excited 2 + states and deformation lengths of the nuclei 30 Ne and 36 Mg were determined via Coulomb-and nuclear-force-dominated inelastic scattering at intermediate energies. Beams of these exotic nuclei were produced at the RIKEN Radioactive Isotope Beam Factory and were incident on lead and carbon targets at energies above 200 MeV/u. Absolute excitation cross sections on the lead target yielded reduced transition probabilities of 0.0277(79) and 0.0528(121) e 2 b 2 , while the measurements with the carbon target revealed nuclear deformation lengths of δ N = 1.98(11) and 1.93(11) fm for 30 Ne and 36 Mg, respectively. Corresponding quadrupole deformation parameters of β 2 ∼ 0.5 from the two probes were found comparable in magnitude, showing no indication for a reduction in deformation along isotopic and isotonic chains from 32 Mg towards the neutron drip-line. Comparisons to shell-model calculations illustrate the importance of neutron excitations across the N = 20 shell for 30 Ne and suggest that shallow maximums of collectivity may occur around N = 22 and 24 along the neon and magnesium isotopic chains, respectively.

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Section: Resultssupporting

confidence: 54%

Section: Resultsmentioning

confidence: 46%

Section: Discussionmentioning

confidence: 69%

“…[35] at similar beam energies was followed. Measured cross sections were compared to the calculations with the code ECIS97 [37] using the rotational model.…”

Section: Resultsmentioning

confidence: 99%

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Mapping the deformation in the “island of inversion”: Inelastic scattering ofNe30andMg36at intermediate energies

et al. 2016

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“…Many other 32 Mg properties such as the excess binding [1], the reduced 2 + 1 energy [7], and the enhanced B(E2; 2 + 1 → 0 + 1 ) value [5,[20][21][22][23][24] are consistent with 2p2h configurations dominating the low-energy states. However, the 4p4h configurations appear essential to reproduce the known properties of the long-lived (τ > 10 ns) 0 + 2 state reported at 1058 keV [6].…”

mentioning

confidence: 99%