2020-06-03T16:12:28Z
http://digital.csic.es/dspace-oai/request
oai:digital.csic.es:10261/9116
2016-02-16T03:56:45Z
com_10261_61
com_10261_4
col_10261_314
Vijande, Javier
Weissman, E.
Barnea, N.
Valcarce, A.
2008-12-10T12:23:22Z
2008-12-10T12:23:22Z
2007-11-19
Physical Review D 76(9): 094022 (2007)
1550-7998
http://hdl.handle.net/10261/9116
10.1103/PhysRevD.76.094022
The four-quark system c[overline c]n[overline n] is studied in the framework of the constituent quark model. Using different types of quark-quark potentials, we solve the four-body Schrodinger equation by means of the hyperspherical harmonic formalism. Exploring the low laying J(PC) states for different isospin configurations no four-quark bound states have been found. Of particular interest is the possible four-quark structure of the X(3872). We rule out the possibility that this particle is a compact tetraquark system, unless additional correlations, either in the form of diquarks or at the level of the interacting potential, not considered in simple quark models do contribute.
eng
openAccess
Multi-quark hadrons
Quantum Chromodynamics (QCD)
[PACS] Nonrelativistic quark model
[PACS] Charmed mesons
[PACS] Nuclear few-body systems
[PACS] Hyperspherical methods (atoms and molecules)
Do c[overline c]n[overline n] bound states exist?
artÃculo