Low-lying states in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><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>studied by proton inelastic scattering

Takeuchi, Satoshi; Aoi, N.; Motobayashi, T.; Ota, S.; Takeshita, Eri; Suzuki, Hiroshi; Baba, H.; Fukui, Tokuro; Hashimoto, Yoshiko; Ieki, K.; Imai, N.; Iwasaki, H.; Kanno, S.; Kondo, Y.; Kubo, T.; Kurita, K.; Minemura, T.; Nakabayashi, T.; Nakamura, Takashi; Okumura, T.; Onishi, T. K.; Sakuraï, H.; Shimoura, S.; Sugou, R.; Suzuki, D.; Suzuki, Masaru; Takashina, Masaaki; Tamaki, M.; Tanaka, K.; Togano, Y.; Yamada, K.

doi:10.1103/physrevc.79.054319

Cited by 56 publications

(53 citation statements)

References 61 publications

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“…Many studies have been performed in this region [2][3][4][5][6][7][8][9], both experimentally and theoretically, which support and provide evidence for collective deformed ground states. Recently, a rotational structure, the fingerprint of deformed shapes, has been observed in 32 Mg up to spin I = 6 + , confirming this interpretation [10].…”

Section: Introductionmentioning

confidence: 56%

“…A natural starting point for the description of 33 Mg is to describe this nucleus as a 32 Mg core plus a valence neutron (or a 34 Mg core plus a valence hole). The lowlying yrast structure in 32,34 Mg is described as a rotational band [10] -the extension of this property from the even system to the odd system in 33 Mg is of interest for our understanding of the stability of deformation in this region.…”

Section: Resultsmentioning

confidence: 99%

“…The lowlying yrast structure in 32,34 Mg is described as a rotational band [10] -the extension of this property from the even system to the odd system in 33 Mg is of interest for our understanding of the stability of deformation in this region. To this end, the low-energy excitation energies, γ-ray intensities, and other available data for 33 Mg are compared to a leading order rotational interpretation.…”

Section: Resultsmentioning

confidence: 99%

“…The "Island of Inversion" centered at N = 20 for the neon, sodium, and magnesium isotopes is one such region, where rather than spherical nuclei expected from the N = 20 harmonic oscillator closure, one finds nuclei dominated by deformed ground states [1]. The reduction in the N = 20 shell gap in the region centered around 32 Mg favors the promotion of pairs of neutrons from the sd-shell into the pf -shell, as the promoted particles and sd-shell holes experience the quadrupole-quadrupole force and the gain in correlation energy overcomes the cost of crossing the gap. As such, nuclei are characterized by n-particle-n-hole (np-nh) excitations and deformation in their ground states.…”

Section: Introductionmentioning

confidence: 99%

“…With one neutron coupled to 32 Mg, it would be reasonable to expect that 33 Mg will also be well deformed. This odd-A system can provide further insight into the rotational picture, the blocking of pairing correlations, and the stability of deformation.…”

Section: Introductionmentioning

confidence: 99%

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Strongly coupled rotational band in Mg33

et al. 2017

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The "Island of Inversion" at N ∼ 20 for the neon, sodium, and magnesium isotopes has long been an area of interest both experimentally and theoretically due to the subtle competition between 0p-0h and np-nh configurations leading to deformed shapes. However, the presence of rotational band structures, which are fingerprints of deformed shapes, have only recently been observed in this region. In this work, we report on a measurement of the low-lying level structure of 33 Mg populated by a two-stage projectile fragmentation reaction and studied with GRETINA. The experimental level energies, ground state magnetic moment, intrinsic quadrupole moment, and γ-ray intensities show good agreement with the strong-coupling limit of a rotational model.

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