hidden color states; tetraquarks; nonrelativistic model
Abstract :
[en] We study a system of tw quarks and two antiquarks of equal masses in the framework of a nonrelativistic potential model with color confinement and hyperfine spin-spin interaction. We propose a simple variational solution and conclude that the hyperfine interaction is needed to bind the system in agreement with previous studies. Our results explicitly show the important role played by the hidden-color states in lowering the variational energy.
Disciplines :
Physics
Author, co-author :
Brink, D. M.
Stancu, Floarea ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
On the role of hidden-colour states in 2q 2anti-q systems
Publication date :
1994
Event name :
International Conference 'Many-body Physics'
Event date :
20-25 Sep 1993
Audience :
International
Main work title :
Proceedings of the International Conference 'Many-body Physics' Coimbra 20-25 Sep 1993
