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Quark condensation in quantum chromodynamics

1979; American Physical Society; Volume: 20; Issue: 12 Linguagem: Inglês

10.1103/physrevd.20.3253

1538-4500

J. Finger, D. Horn, Jeffrey E. Mandula,

Black Holes and Theoretical Physics

Working within a limited Fock-space approximation (LFSA), we argue that if the running coupling constant of quantum chromodynamics (QCD) exceeds a critical value of order 1 the vacuum becomes a condensate of quark-antiquark pairs. To evaluate the critical coupling constant we use a Mellin-transform technique which is first illustrated with a Schr\"odinger equation problem. We then apply it to scalar and spinor QED, as well as to QCD, using the LFSA.