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arXiv 1507.01130hep-ph
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关于有限$\mathbf{N_c}$上的非整体解的重新表示

On the resummation of non-global logarithms at finite $\mathbf{N_c}$

Yazid Delenda, Kamel Khelifa-Kerfa

摘要:

我们提出了一个计算的非全球日志在有限的$\mathrm{N_c}$半球质量分布在$e^+e^-\to 2$喷流,在单一的日志精度高达五阶的强耦合常数。我们的研究结果表明,这些大的日志到一个指数可能的所有订单repetmation。比较我们的结果,在大$\mathrm{N_c}$,最近在文献中报道,我们发现一个协议。我们还比较了我们的研究结果与数值的所有订单remation在大$\mathrm{N_c}$和讨论的意义,忽略有限的$\mathrm{N_c}$的修正,上述分布。

英文摘要:

We present a calculation of non-global logs at finite $\mathrm{N_c}$ for the hemisphere mass distribution in $e^+e^-\to 2$ jets at single log accuracy up to fifth order in the strong coupling constant. Our results suggest a possible all-orders resummation of these large logs into an exponential. Comparing our results to those at large $\mathrm{N_c}$, recently reported in literature, we find an agreement. We additionally compare our findings with the numerical all-orders resummation at large $\mathrm{N_c}$ and discuss the significance of neglected finite-$\mathrm{N_c}$ corrections on the said distribution.

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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