On the bosonic spectrum of QCD(1+1) with SU(N) currents

Authors
Citation
U. Trittmann, On the bosonic spectrum of QCD(1+1) with SU(N) currents, NUCL PHYS B, 587(1-3), 2000, pp. 311-327
Citations number
21
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS B
ISSN journal
05503213 → ACNP
Volume
587
Issue
1-3
Year of publication
2000
Pages
311 - 327
Database
ISI
SICI code
0550-3213(20001030)587:1-3<311:OTBSOQ>2.0.ZU;2-S
Abstract
In this note we calculate the spectrum of two-dimensional QCD. We formulate the theory with SU(N-C) currents rather than with fermionic operators. We construct the Hamiltonian matrix in DLCQ formulation as a function of the h armonic resolution K and the numbers of flavors N-f and colors N-c. The res ulting numerical eigenvalue spectrum is free from trivial multi-particle st ates which obscured previous results. The well-known 't Hooft and large N-f spectra are reproduced. In the case of adjoint fermions we present some ne w results. (C) 2000 Elsevier Science B.V. All rights reserved.