| 耦合常数小于1时SU(2)格点规范理论的质量隙及β函数计算 |
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| 引用本文： | 应和平,董绍静.耦合常数小于1时SU(2)格点规范理论的质量隙及β函数计算[J].物理学报,1988,37(3):520-523. |
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| 作者姓名： | 应和平 董绍静 |
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| 作者单位： | 浙江大学物理系 |
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| 摘 要： | 通过改变格点规范理论的作用量,我们把Monte Carlo计算的“窗口”移到了耦合常数小于1的区域。这就提供了在较弱耦合下作Monte Carlo计算的另一种途径。在3.9≤β≤4.7区域内,在104格点上,我们计算了SU(2)规范的重整化群β函数及质量间隙,观察到类似于Wilson作用量的标度行为,估算出M≈(3.9±1.0)σ1/2。
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| 收稿时间： | 1987-04-23 |
THE BETA-FUNCTION AND MASS GAP IN SU(2) LATTICE GAUGE THEORY FOR COUPLING LESS THAN ONE |
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| YING HE-PING and DONG SHAO-JING.THE BETA-FUNCTION AND MASS GAP IN SU(2) LATTICE GAUGE THEORY FOR COUPLING LESS THAN ONE[J].Acta Physica Sinica,1988,37(3):520-523. |
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| Authors: | YING HE-PING and DONG SHAO-JING |
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| Abstract: | Through changing lattice action, the Monte Carlo "observation window" is shifted into g2<1 region. This provides an alternative way to do Monte Carlo calculations in weaker coupling. For 3.9≤β≤4.7, we calcualte the renormalization group beta function and estimate the mass gap on a 104 lattice. The scaling behaviour and M= (3.9±1.0)σ1/2 are found in this region. |
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