Top-quark pole mass in the tadpole-free $overline {MS}$ scheme

Top-quark pole mass in the tadpole-free $overline {MS}$ scheme
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无蝌蚪 $overline {MS}$ 方案中的顶夸克极质量

DOI:
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发表时间:
2016
期刊:
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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在标准模型中,顶夸克的复极质量是完全双圈的,增加了已知的四圈QCD贡献。输入参数是MS-bar Yukawa和Gauge耦合、Higgs自耦合和Higgs真空期望值(VEV)。这里,VEV被定义为Landau规范中的全有效势的最小值,从而使蝌蚪消失。这是对早期结果的一种替代,这些结果取而代之的是最小化树状能级的势,导致了一个独立于规范固定的VEV,但伴随着微扰展开中希格斯自耦合的负幂。通过恢复消除了非零Goldstone玻色子质量的影响。我还研究了计算的极点质量与重整化尺度的关系。
The complex pole mass of the top quark is presented at full two-loop order in the Standard Model, augmenting the known four-loop QCD contributions. The input parameters are the MS-bar Yukawa and gauge couplings, the Higgs self-coupling, and the Higgs vacuum expectation value (VEV). Here, the VEV is defined as the minimum of the full effective potential in Landau gauge, so that tadpoles vanish. This is an alternative to earlier results that instead minimize the tree-level potential, resulting in a VEV that is gauge-fixing independent but accompanied by negative powers of the Higgs self-coupling in perturbative expansions. The effects of non-zero Goldstone boson mass are eliminated by resummation. I also study the renormalization scale dependence of the calculated pole mass.
DOI: 10.1016/j.physrep.2010.05.002
发表时间: 2008-12
期刊: Physics Reports
影响因子: --
作者:
H. Dreiner;H. Haber;S. P. Martin
通讯作者: H. Dreiner;H. Haber;S. P. Martin
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