The SU(3) Beta Function from Numerical Stochastic Perturbation Theory
The SU(3) Beta Function from Numerical Stochastic Perturbation Theory
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DOI：
10.1016/j.physletb.2013.11.012
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发表时间：
2013-09
影响因子：
4.4
通讯作者：
R. Horsley;H. Perlt;H. Perlt;P. Rakow;G. Schierholz;A. Schiller
中科院分区：
文献类型：
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作者：
R. Horsley;H. Perlt;H. Perlt;P. Rakow;G. Schierholz;A. Schiller
从Wilson环到20阶数值随机微扰理论计算SU（3）β函数。尝试包括无质量的费米子，其贡献是已知的解析到第四阶。该理论是否承认红外稳定不动点的问题得到解决。
The SU(3) beta function is computed from Wilson loops to 20th order numerical stochastic perturbation theory. An attempt is made to include massless fermions, whose contribution is known analytically to 4th order. The question whether the theory admits an infrared stable fixed point is addressed.