Consistent use of the standard model effective potential.

Consistent use of the standard model effective potential.
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一致使用标准模型的有效潜力。

DOI:
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发表时间:
2014
影响因子:
8.6
通讯作者:
M. Schwartz
M. Schwartz
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Anders Andreassen;William Frost;M. Schwartz

文献摘要

被引文献

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标准模型的稳定性取决于有效希格斯势的真正最小值。我们表明,在其最小的潜力时,由传统的方法计算是强烈依赖于规范参数。此外,它还取决于计算电势的尺度。我们提供了一个一致的方法来确定绝对稳定性的独立规范和计算规模,订单订单的微扰论。这导致修正的稳定性界限m(h)(pole)>(129.4±2.3)GeV和m(t)(pole)<(171.2±0.3)GeV。我们还展示了如何评估新物理的稳定性上界的影响,而不诉诸非物理的字段值。
The stability of the standard model is determined by the true minimum of the effective Higgs potential. We show that the potential at its minimum when computed by the traditional method is strongly dependent on the gauge parameter. It moreover depends on the scale where the potential is calculated. We provide a consistent method for determining absolute stability independent of both gauge and calculation scale, order by order in perturbation theory. This leads to a revised stability bounds m(h)(pole)>(129.4±2.3)  GeV and m(t)(pole)<(171.2±0.3)  GeV. We also show how to evaluate the effect of new physics on the stability bound without resorting to unphysical field values.