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arXiv 1202.0294hep-ph
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电弱辐射修正与标准模型的么正性

Electroweak radiative corrections and unitarity of Standard Model

Grigory Ovanesyan

摘要:

计算了纵向规范和希格斯玻色子散射振幅的电弱修正。由于Sudakov双曲线,其效果是抑制随着质心能量增加而快速增长的振幅,导致与树级结果相比截面显著减小。例如,由于这些校正,$W^+_{\text{L}}W^-_{\text{L}}$散射的截面的抑制因子从$100\text{TeV}$的质心能量处的0.3变化到$10^{13}\text{TeV}$的质心能量处的因子$10^{-12}$。得到了这些修正对SM么正性界的修正。

英文摘要:

Electroweak corrections to longitudinal gauge and Higgs boson scattering amplitudes are calculated. Due to Sudakov double logarithms, the effect is a suppression of amplitude that grows rapidly with increasing center of mass energy leading to significant reduction of cross sections compared to tree level results. For example, the suppression factor for the cross section of $W^+_{\text{L}}W^-_{\text{L}}$ scattering due to these corrections varies from 0.3 at the center of mass energy of $100\text{TeV}$ to a factor of $10^{-12}$ at the center of mass energy of $10^{13}\text{TeV}$. The modification of SM unitarity bound due to these corrections is obtained.

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