Color spin wave functions of heavy tetraquark states
Nuclear Theory
2015-06-18 v1
Abstract
Using the variational method, we calculate the mass of the J^P=1^+ (ud)bar(bb) 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 6bar{6} 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.
Keywords
Cite
@article{arxiv.1311.5330,
title = {Color spin wave functions of heavy tetraquark states},
author = {Woosung Park and Su Houng Lee},
journal= {arXiv preprint arXiv:1311.5330},
year = {2015}
}
Comments
14 pages