Multicluster solutions to a multinucleon problem and clustering phenomena

Gnilozub, I. A.; Kurgalin, Sergei; Tchuvil’sky, Yu. M.

doi:10.1134/s1063778808070132

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…The 1 − state was also suggested in [39] at 9.027 +. 15 −.03 MeV with a width of 500 +150 −50 keV. Our analysis indicates that the width of this state is 220 (30) keV, which is significantly smaller, but still within the large error bars of [21].…”

Section: Experiments and Analysismentioning

confidence: 53%

“…6 shows the fit without the inclusion of this 2 + state. A 2 + state at 10.43 (15) MeV was suggested earlier in [39] with the somewhat larger width of 500(150) keV.…”

Section: Experiments and Analysismentioning

confidence: 71%

“…It was also seen in [34] at 9.70 MeV where a tentative (1 − ,2 + ,3 − ) assignment was made. A 3 − state was observed by [39] at 9.711 (15) MeV with a width of 75 (15) keV. In reference [23] a 3 − state was suggested at similar energy (9.715(5) MeV) but with a much smaller width.…”

Section: Experiments and Analysismentioning

confidence: 91%

“…[11]. An approach to clustering exploiting the Elliott SU(3) model [12] under the assumption that the wave functions of clustered states possess and unmixed SU(3) symmetry has been particularly successful in studies of multi-cluster systems such as 8 Be, 10 Be, 12 C, 16 O, 32 S [13][14][15][16][17]. However, purely algebraic models lack configuration mixing and are not expected to describe complex spectroscopy of states such as those in 18 O with two valence neutrons.…”

Section: Introductionmentioning

confidence: 99%

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α-cluster structure ofO18

et al. 2014

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Background: Clustering phenomena in N = Z nuclei provide an opportunity to understand the interplay between cluster and nucleon degrees of freedom. Purpose:To study resonances in the 18 O spectrum, populated in 14 C+α elastic scattering.Method: The Thick Target Inverse Kinematics (TTIK) technique was used to measure the excitation function for the 14 C+α elastic scattering. A 42 MeV 14 C beam was used to populate states of excitation energy up to 14.9 MeV in 18 O. The analysis was performed using a multi-level, multi-channel R-Matrix approach.Results: Detailed spectroscopic information, including spin-parities, partial α-and neutron-decay widths and dimensionless reduced widths, was obtained for excited states in 18 O between 8 and 14.9 MeV in excitation energy. Cluster-Nucleon Configuration Interaction Model calculations of the same quantities are performed and compared to the experimental results.Conclusions: Strong fragmentation of large α-cluster strengths is observed in the spectrum of 18 O making the α-cluster structure of 18 O quite different from the pattern of known quasi-rotational bands of alternating parity that are characteristic of N = Z, even-even nuclei like 16 O and 20 Ne.

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Section: Experiments and Analysismentioning

confidence: 53%

“…6 shows the fit without the inclusion of this 2 + state. A 2 + state at 10.43 (15) MeV was suggested earlier in [39] with the somewhat larger width of 500(150) keV.…”

Section: Experiments and Analysismentioning

confidence: 71%