Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-06-10
Physics
High Energy Physics
High Energy Physics - Theory
25 pages, 5 figures, Latex
Scientific paper
The boson mass and the condensate in two dimensional QCD with $SU(N_c)$ colors are numerically evaluated with the Bogoliubov vacuum. It is found that the boson mass is finite at the massless limit, and it is well described by the phenomenological expression $ {\cal M}_{N_c}={2\over 3}\sqrt{{N_cg^2\over{3\pi}}} $ for large $N_c$. Also, the condensate values agree very well with the prediction by the $1/N_c$ expansion. The validity of the naive light cone method is examined, and it turns out that the light cone prescription of the boson mass with the trivial vacuum is accidentally good for QED$_2$. But it is not valid for QCD$_2$. Further, at the massless fermion limit, the chiral symmetry is spontaneouly broken without anomaly, and the Goldstone theorem does not hold for QCD$_2$.
Fujita Takehisa
Hiramoto Makoto
Homma Takeshi
No associations
LandOfFree
New spectrum and condensate in two dimensional QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with New spectrum and condensate in two dimensional QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New spectrum and condensate in two dimensional QCD will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-367921