Search for evidence of rotational cluster bands in O18

Abstract

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Precision branching-ratio measurements in $$^{18}$$O

“…Aside from the 11696(1) keV state discussed in Ref. [19], there is no evidence of cluster structure for any states in this region with prior spin-parity information. All calculated θ 2 α values are significantly under 0.1, suggesting typical shellmodel behaviour of states in this region.…”

“…Values given in bold are previously published and discussed in Ref. [19] Current 0.19(5) contradicts the tentative J π = 4 − assignment in Ref. [16].…”

“…The work in Ref. [19] found no consistent cluster structure across any of the proposed cluster bands, but did observe potential α-cluster structure in both the 11696(1) keV J π = 6 + and 12557(2) keV J π = 6 + states. The θ 2 α values are provided for states that have known or tentative spin-parity assignments in the literature, calculated assuming a spherical geometry.…”

“…Values given in bold are previously published and discussed in Ref. [19] in the context of α-cluster bands. The work in Ref.…”

α-cluster structure of Ne18

“…In this paper, we study the structure of 18 Ne through the resonant elastic scattering of 14 O on 4 He. The structure of the mirror nucleus 18 O has been studied by several groups [5][6][7][8][9][10][11][12][13][14]. In particular, the mirror reaction 14 C +α was previously measured by Avila et al [5] with high statistics using a high-intensity 14 C beam from the tandem accelerator at FSU J. D. Fox laboratory.…”