Do cc̄nn̄ bound states exist?

J. Vijande*, E. Weissman, N. Barnea, A. Valcarce

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

The four-quark system cc̄nn̄ is studied in the framework of the constituent quark model. Using different types of quark-quark potentials, we solve the four-body Schrödinger equation by means of the hyperspherical harmonic formalism. Exploring the low laying JPC 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.

Original languageAmerican English
Article number094022
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number9
DOIs
StatePublished - 19 Nov 2007

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