Color spin wave functions of heavy tetraquark states

Woosung Park, Su Houng Lee

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Using the variational method, we calculate the mass of the J P = 1 + udb-b- tetraquark containing two identical heavy antiquarks in a nonrelativistic potential model with color confinement and spin hyperfine interaction. In particular, we extend a previous investigation of the model by Brink and Stancu by investigating the effect of including the color anti-sextet component of the diquark configuration as well as using several more Gaussian parametrization for the L = 0 part of the spatial wave function. We find that for the heavy tetraquark, the 66- component among the color singlet bases is negligible and that the previously used specific Gaussian spatial configuration is good enough in obtaining the ground state energy.

Original languageEnglish
Pages (from-to)161-184
Number of pages24
JournalNuclear Physics A
Volume925
DOIs
Publication statusPublished - 2014 May 1

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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