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Nuclear Theory·nucl-th

Thursday·November 5, 2020

7 papers—2 primary·5 cross-listed

All7Primary2Cross-lists5
  1. 01

    Cluster structure of 20Ne: Evidence for D(3h) symmetry

    R. Bijker · F. Iachello

    We study the cluster structure of 20Ne and show that the available experimental data can be well described by a bi-pyramidal structure with D(3h) symmetry. Strong evidence for the occurrence of this symmetry comes from the observation of all nine expected vibrational modes (3 singly degenerate and 3 doubly degenerate) and of six (singly degenerate) double vibrational modes. 20Ne appears to be another example of the simplicity in complexity program, in which simple spectroscopic features arise out of a complex many-body system.

    nucl-thnucl-exNPA(2021)·24 citations
  2. 02

    Energy loss of heavy quarkonia in hot QCD plasmas

    Juhee Hong🇰🇷 · Su Houng Lee🇰🇷

    We compute the energy loss of heavy quarkonia in high temperature QCD plasmas and investigate the energy loss effects on quarkonium suppression. Based on the effective vertex derived from the Bethe-Salpeter amplitude for quarkonium, the collisional and radiative energy loss are determined by quarkonium-gluon elastic scattering and the associated gluon-bremsstrahlung, respectively. In the energy regime the collisional energy loss is dominant over the radiative one, and the total energy loss increases with the plasma temperature and the initial energy of quarkonium. Our numerical analysis indicates that the medium-induced energy loss of the (1S) results in stronger suppression at higher momentum, although the energy loss effects are found to be small compared with the previous estimates of quarkonium dissociation in heavy-ion collisions.

    nucl-thhep-phPRC(2021)·2 citations

Affiliations

first authorsco-authorsvia INSPIRE