THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER

ZHOU BANG-RONG

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2024年10月30日

Chinese Physics C> 1982, Vol. 6> Issue(4) : 421-427

THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER

ZHOU BANG-RONG

University of Science and Technology of China

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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--2N_f). We bound that it is possible to determine the potential bymeans of the single parameter ∧ if the quark flavor number N_f is specified in abvance.

References

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ZHOU BANG-RONG. THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER[J]. Chinese Physics C, 1982, 6(4): 421-427.

ZHOU BANG-RONG. THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER[J]. Chinese Physics C, 1982, 6(4): 421-427. shu

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Received: 1981-01-07
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER

ZHOU BANG-RONG

University of Science and Technology of China

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--2N_f). We bound that it is possible to determine the potential bymeans of the single parameter ∧ if the quark flavor number N_f is specified in abvance.