| 格点变模SU（2）－Higgs模型的解析计算 |
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| 引用本文： | 刘备书,郑希特.格点变模SU（2）－Higgs模型的解析计算[J].中国物理 C,1995(12). |
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| 作者姓名： | 刘备书 郑希特 |
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| 作者单位： | 四川联合大学应用物理系 |
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| 摘 要： | 在四维空间对格点ＳＵ（２）－Ｈｉｇｇｓ模型的序参量Ｅｐ＝〈ｔｒＵｐ〉〉用累积展开计算到四级近似．Ｈｉｇｇｓ场为基础表示．发展了定双变分参数的办法．得到的相图与蒙特卡罗结果有好的符合．
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| 关 键 词： | 格点规范，累积展开，SU（2）一Higgs模型． |
Analytical Calculation of Lattice SU(2)-Higgs Model with Varied Length |
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| Liu Beishu, Zheng Xite.Analytical Calculation of Lattice SU(2)-Higgs Model with Varied Length[J].High Energy Physics and Nuclear Physics,1995(12). |
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| Authors: | Liu Beishu Zheng Xite |
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| Abstract: | The order parameter Ep= of the lattice SU(2 )-Higgs model in four dimensions is calculated using the cumulant expansion to the fourth order approximation.The Higgs field is in the fundamental representation. An approach for determining two variational parameters is developed. The phase diagram obtained is in a good agreement with the Monte Carlo result. |
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| Keywords: | lattice gauge cumulant expansion SU(2)-Higgs model |
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