Abstract
The transition from weak to strong coupling in quantum chromodynamics is discussed using semiclassical methods to calculate the effective coupling g(a) of an effective lattice theory as a function of a. We demonstrate that the renormalization effects due to instantons cause a sharp transition from weak to strong coupling in the range g(a)1.5-3. This is verified by showing that the "string tension" as well as the function calculated by semiclassical methods match their strong-coupling behavior for g1.5-3. An independent test of this notion is provided by a bag-model calculation of the string tension.
Original language | English (US) |
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Pages (from-to) | 3279-3291 |
Number of pages | 13 |
Journal | Physical Review D |
Volume | 20 |
Issue number | 12 |
DOIs | |
State | Published - 1979 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)