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arXiv 0710.2236hep-ph
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$α_s$在MSSM中以三环精度运行

Running of $α_s$ in the MSSM with three-loop accuracy

Luminita Mihaila

摘要:

给出了强耦合常数$α_s$从$M_Z$到GUT尺度的演化过程,包括三环运行和双环解耦。因此,适当地考虑了从$\bar{\rm MS}$到$\bar{\rm DR}$方案的双环路转换。我们发现,三个回路的影响是可比的$α_s$的实验不确定性。

英文摘要:

The evolution of the strong coupling constant $α_s$ from $M_Z$ to the GUT scale is presented, involving three-loop running and two-loop decoupling. Accordingly, the two-loop transition from the $\bar{\rm MS}$ to the $\bar{\rm DR}$ scheme is properly taken into account. We find that the three-loop effects are comparable to the experimental uncertainty for $α_s$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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