Quark-Antiquark Composite Systems: the Bethe-Salpeter Equation in the Spectral-Integration Technique in the Case of Different Quark Masses

Journal Article · Thu Sep 01 00:00:00 EDT 2005 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/1.2053340· OSTI ID:20692873

Anisovich, A V; Anisovich, V V; Markov, V N; Matveev, M A; Sarantsev, A V ^[1]

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1. Petersburg Nuclear Physics Institute, Russian Academy of Sciences, Gatchina, 188350 (Russian Federation)

The Bethe-Salpeter equations for quark-antiquark composite systems with different quark masses, such as qs-bar (with q = u,d ), qQ-bar, and sQ-bar (with Q = c,b), are written in terms of spectral integrals. For mesons characterized by the mass M, spin J, and radial quantum number n, the equations are written for the (n, M{sup 2}) trajectories with fixed J. The mixing between states with different quark spin S and angular momentum L is also discussed.

• OSTI ID: 20692873
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9 Vol. 68; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BETHE-SALPETER EQUATION
MESON SPECTROSCOPY
MESONS
QUARK MODEL
QUARKS
REST MASS
SPIN