One-loop QCD contribution to the potential of QQ

LIU Li-Quan; ZHAO Shu-Min; ZHANG Jian-Jun; YANG Bao-Zhu; HUANG De-Bao

doi:10.1088/1674-1137/35/2/003

Chinese Physics C> 2011, Vol. 35> Issue(2) : 126-129 DOI: 10.1088/1674-1137/35/2/003

One-loop QCD contribution to the potential of QQ

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Abstract：
Without the non-relativistic approximation in one-loop function, the dominating one-loop contribution to the quark-antiquark potential is studied numerically in terms of perturbative Quantum Chromo Dynamics (QCD). For Coulomb-like potential, the ratio of the one-loop correction to the tree diagram contribution is presented, whose absolute value is about 20%. Our result is consistent with the analysis that the one-loop contribution should be suppressed by a factor α_s/π to the leading order contribution. This work can deepen the comprehension of α_s in Cornel potential.

References

[1]

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LIU Li-Quan, ZHAO Shu-Min, ZHANG Jian-Jun, YANG Bao-Zhu and HUANG De-Bao. One-loop QCD contribution to the potential of QQ[J]. Chinese Physics C, 2011, 35(2): 126-129. doi: 10.1088/1674-1137/35/2/003

LIU Li-Quan, ZHAO Shu-Min, ZHANG Jian-Jun, YANG Bao-Zhu and HUANG De-Bao. One-loop QCD contribution to the potential of QQ[J]. Chinese Physics C, 2011, 35(2): 126-129. doi: 10.1088/1674-1137/35/2/003 shu

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Received: 2010-04-12
Revised: 2010-08-23

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

One-loop QCD contribution to the potential of QQ

Received Date: 2010-04-12

Accepted Date: 2010-08-23

Available Online: 2011-02-05

Abstract: Without the non-relativistic approximation in one-loop function, the dominating one-loop contribution to the quark-antiquark potential is studied numerically in terms of perturbative Quantum Chromo Dynamics (QCD). For Coulomb-like potential, the ratio of the one-loop correction to the tree diagram contribution is presented, whose absolute value is about 20%. Our result is consistent with the analysis that the one-loop contribution should be suppressed by a factor α_s/π to the leading order contribution. This work can deepen the comprehension of α_s in Cornel potential.

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One-loop QCD contribution to the potential of QQ

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One-loop QCD contribution to the potential of QQ

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