2024-03-28T13:12:00Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/91382016-02-16T03:57:00Zcom_10261_61com_10261_4col_10261_314
2008-12-10T12:28:35Z
urn:hdl:10261/9138
Are there compact heavy four-quark bound states?
Vijande, Javier
Weissman, E.
Valcarce, A.
Barnea, N.
[PACS] Nonrelativistic quark model
[PACS] Charmed mesons
Hadrons
Baryons
6 pages, 1 figure.-- PACS nrs.: 12.39.Jh; 14.40.Lb.-- ISI Article Identifier: 000251327200050.-- ArXiv pre-print available at: http://arxiv.org/abs/0710.2516
We present an exact method to study four-quark systems based on the hyperspherical harmonics formalism. We apply it to several physical systems of interest containing two heavy and two light quarks using different quark-quark potentials. Our conclusions mark the boundaries for the possible existence of compact, nonmolecular, four-quark bound states. While QQ[overline n][overline n] states may be stable in nature, the stability of Q[overline Q]n[overline n] states would imply the existence of quark correlations not taken into account by simple quark dynamical models.
2008-12-10T12:28:35Z
2008-12-10T12:28:35Z
2007-11-28
artÃculo
Physical Review D 76(9): 094027 (2007)
1550-7998
http://hdl.handle.net/10261/9138
10.1103/PhysRevD.76.094027
eng
http://dx.doi.org/10.1103/PhysRevD.76.094027
openAccess
American Physical Society