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Quark-antiquark potential in QCD
The potential energy of colour sources as a function of their separation is computed up to two loops; the renormalization group equations it satisfies are derived. This enables us to obtain beta (g) to O(g/sup 5/) and recover its known value. The solution of this Callan-Symanzik equation to O(g/sup...
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| Lenguaje: | eng |
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1977
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| Acceso en línea: | https://dx.doi.org/10.1016/0550-3213(77)90026-8 http://cds.cern.ch/record/878517 |
| Sumario: | The potential energy of colour sources as a function of their separation is computed up to two loops; the renormalization group equations it satisfies are derived. This enables us to obtain beta (g) to O(g/sup 5/) and recover its known value. The solution of this Callan-Symanzik equation to O(g/sup 5/) leads to a colour-confining potential. A qualitative argument is given to reject it as an artifact of the approximation used. (11 refs). |
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