THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER
- Received Date: 1981-01-07
- Accepted Date: 1900-01-01
- Available Online: 1982-08-05
Abstract: We have derived a modified expression for the QCD effective coupling constant totwo-loop order It amounts to adding the terms of higher order than Int/t which areindependent of the renormalization scheme to the usual expression. On the basis of theresult we proposed a in momentum and coordinate representation respectively, singleheavy quark potential which has the properties of both asymptotic freedom and as-sumed linear confinement, and obtained the slope of the linear potential at large dis-tances k=4π∧2/(33--2Nf). We bound that it is possible to determine the potential bymeans of the single parameter ∧ if the quark flavor number Nf is specified in abvance.