Gluon propagator, triple gluon vertex and the QCD coupling constant

被引:5
|
作者
Becirevic, D
Boucaud, P
Leroy, JP
Micheli, J
Pène, O
Rodríguez-Quintero, J
Roiesnel, C
机构
[1] Ist Nazl Fis Nucl, Sez Roma, Dip Fis, I-00185 Rome, Italy
[2] Univ Paris 11, CNRS, UMR 8627, Theoret Phys Lab, F-91405 Orsay, France
[3] Ecole Polytech, Ctr Phys Theor, Unite Mixte Rech C7644, CNRS, F-91128 Palaiseau, France
关键词
D O I
10.1016/S0920-5632(00)91610-4
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We study the UV-scaling of the flavorless gluon propagator in the Landau gauge in an energy window up to 9 GeV. Dominant hypercubic lattice artifacts are eliminated. A large set of renormalization schemes is used to test asymptotic scaling. We compare with our results obtained directly from the triple gluon vertex. We end-up with Lambda(<(MS)over bar>) = 318(12)(5) MeV and 292(5)(15) MeV respectively for these two methods, compatible which each other but significantly above the Schrodinger method estimate.
引用
收藏
页码:159 / 161
页数:3
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