$Z$-boson pole mass at two-loop order in the pure $overline{MS}$ scheme

$Z$-boson pole mass at two-loop order in the pure $overline{MS}$ scheme
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纯$overline{MS}$方案中二环阶的$Z$-玻色子极质量

DOI:
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发表时间:
2015
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影响因子:
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通讯作者:
S. P. Martin
S. P. Martin
中科院分区:
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文献类型:
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作者:
S. P. Martin

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我在纯 MS-bar 重正化方案的标准模型中获得了全双环阶 Z 玻色子的复极平方质量。输入参数是运行规范耦合、顶夸克汤川耦合、希格斯自耦合以及最小化朗道规范有效势的真空期望值。非零戈德斯通玻色子质量的影响重新开始。在重正化尺度选择的合理范围内,计算出的极质量的尺度依赖性与当前的实验不确定性相当,但真正的理论误差可能稍大一些。
I obtain the complex pole squared mass of the Z boson at full two-loop order in the Standard Model in the pure MS-bar renormalization scheme. The input parameters are the running gauge couplings, the top-quark Yukawa coupling, the Higgs self-coupling, and the vacuum expectation value that minimizes the Landau gauge effective potential. The effects of non-zero Goldstone boson mass are resummed. Within a reasonable range of renormalization scale choices, the scale dependence of the computed pole mass is found to be comparable to the current experimental uncertainty, but the true theoretical error is likely somewhat larger.
标准模型中顶汤川和希格斯自相互作用的三环β函数
DOI: 10.1007/jhep06
发表时间: 2012
影响因子: 5.4
作者:
K. G. Chetyrkin;M. F. Zoller
通讯作者: M. F. Zoller