Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory. (II) The gluon propagator in Landau gauge

被引:6
作者
Di Renzo, F. [2 ,3 ]
Ilgenfritz, E. -M. [4 ,5 ]
Perlt, H. [1 ]
Schiller, A. [1 ]
Torrero, C. [6 ]
机构
[1] Univ Leipzig, Inst Theoret Phys, D-04009 Leipzig, Germany
[2] Univ Parma, Dipartimento Fis, I-43100 Parma, Italy
[3] Ist Nazl Fis Nucl, I-43100 Parma, Italy
[4] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany
[5] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
[6] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany
关键词
INFRARED BEHAVIOR; QUARK CONFINEMENT; CURRENTS;
D O I
10.1016/j.nuclphysb.2010.09.002
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
This is the second of two papers devoted to the perturbative computation of the ghost and gluon propagators in SU(3) Lattice Gauge Theory. Such a computation should enable a comparison with results from lattice simulations in order to reveal the genuinely non-perturbative content of the latter. The gluon propagator is computed by means of Numerical Stochastic Perturbation Theory: results range from two up to four loops, depending on the different lattice sizes. The non-logarithmic constants for one, two and three loops are extrapolated to the lattice spacing a -> 0 continuum and infinite volume V -> infinity limits. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:122 / 139
页数:18
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