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Quark-antiquark bound states

Abstract

This brief review discusses various aspects of the description of hadrons as bound states of quarks at the simpler example of mesons, which are regarded as composite of a (constituent) quark and antiquark. It is shown how a recently derived relativistic virial theorem may be used in order to cast some light on the interplay between the (semi-)relativistic and (maybe only effective) nonrelativistic treatment of bound states. Furthermore, a new relativistic approach to fermion-antifermion bound states is briefly sketched and applied in order to predict analytically a few selected general features of the meson spectrum. 27 refs.; 2 figs.; 1 tab.
Publication Date:
Dec 31, 1991
Product Type:
Technical Report
Report Number:
JINR-E-4-91-500
Reference Number:
SCA: 662110; PA: AIX-24:008188; SN: 93000932916
Resource Relation:
Other Information: PBD: 1991
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BOUND STATE; BETHE-SALPETER EQUATION; QUARK-ANTIQUARK INTERACTIONS; BOSON-FERMION SYMMETRY; EFFECTIVE MASS; EIGENVALUES; EXPECTATION VALUE; HAMILTONIANS; INTERACTION RANGE; KINETIC ENERGY; MASS DIFFERENCE; ORBITAL ANGULAR MOMENTUM; PROJECTION OPERATORS; REGGE TRAJECTORIES; RELATIVISTIC RANGE; SCATTERING AMPLITUDES; SCHROEDINGER EQUATION; SPIN; VARIATIONAL METHODS; VIRIAL THEOREM; WAVE FUNCTIONS; 662110; THEORY OF FIELDS AND STRINGS
OSTI ID:
10119549
Research Organizations:
Joint Inst. for Nuclear Research, Dubna (Russian Federation). Lab. of Theoretical Physics
Country of Origin:
JINR
Language:
English
Other Identifying Numbers:
Other: ON: DE93613054; TRN: RU9206930008188
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[27] p.
Announcement Date:
Jun 30, 2005

Citation Formats

Lucha, W, and Schoeberl, F. Quark-antiquark bound states. JINR: N. p., 1991. Web.
Lucha, W, & Schoeberl, F. Quark-antiquark bound states. JINR.
Lucha, W, and Schoeberl, F. 1991. "Quark-antiquark bound states." JINR.
@misc{etde_10119549,
title = {Quark-antiquark bound states}
author = {Lucha, W, and Schoeberl, F}
abstractNote = {This brief review discusses various aspects of the description of hadrons as bound states of quarks at the simpler example of mesons, which are regarded as composite of a (constituent) quark and antiquark. It is shown how a recently derived relativistic virial theorem may be used in order to cast some light on the interplay between the (semi-)relativistic and (maybe only effective) nonrelativistic treatment of bound states. Furthermore, a new relativistic approach to fermion-antifermion bound states is briefly sketched and applied in order to predict analytically a few selected general features of the meson spectrum. 27 refs.; 2 figs.; 1 tab.}
place = {JINR}
year = {1991}
month = {Dec}
}