Properties of alpha-particle solutions to the many-nucleon problem

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

doi:10.1134/s1063778806060123

Cited by 5 publications

(1 citation statement)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[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%

α-cluster structure ofO18

et al. 2014

View full text Add to dashboard Cite

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.

show abstract