Relativistic description of heavy tetraquarks

Journal Article · Wed Jan 14 23:00:00 EST 2009 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778809010220· OSTI ID:21406034

Ebert, D ^[1]; Faustov, R N; Galkin, V O ^[2]

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1. Humboldt-Universitaet zu Berlin, Institut fuer Physik (Germany)
2. Russian Academy of Sciences, Dorodnicyn Computing Centre (Russian Federation)

The masses of the ground-state and excited heavy tetraquarks with hidden charm and bottom are calculated within the relativistic diquark-antidiquark picture. The dynamics of the light quark in a heavy-light diquark is treated completely relativistically. The diquark structure is taken into account by calculating the diquark-gluon form factor. New experimental data on charmonium-like states above the open charm threshold are discussed. The obtained results indicate that X(3872), Y(4260), Y(4360), Z(4433), and Y(4660) can be tetraquark states with hidden charm.

• OSTI ID: 21406034
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 72; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARMONIUM
D QUARKS
DATA
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
FORM FACTORS
GLUONS
GROUND STATES
HADRONS
INFORMATION
MESONS
NUMERICAL DATA
PARTICLE PROPERTIES
QUARKONIUM
QUARKS
RELATIVISTIC RANGE
U QUARKS