Few-body quark dynamics for doubly-heavy baryons and tetraquarks
High Energy Physics - Phenomenology
2018-03-30 v2 Nuclear Theory
Abstract
We discuss the adequate treatment of the 3- and 4-body dynamics for the quark model picture of double-charm baryons and tetraquarks. We stress that the variational and Born-Oppenheimer approximations give energies very close to the exact ones, while the diquark approximation might be rather misleading. The Hall-Post inequalities also provide very useful lower bounds that exclude the possibility of stable tetraquarks for some mass ratios and some color wave functions.
Keywords
Cite
@article{arxiv.1803.06155,
title = {Few-body quark dynamics for doubly-heavy baryons and tetraquarks},
author = {Jean-Marc Richard and Alfredo Valcarce and Javier Vijande},
journal= {arXiv preprint arXiv:1803.06155},
year = {2018}
}
Comments
10 pages, 9 figures, to appear in Phys. Rev. C, one ref. added