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arXiv 2011.12314hep-ph
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在高能和大- $m_t$极限下对$gg\to ZH$的虚拟修正

Virtual corrections to $gg\to ZH$ in the high-energy and large-$m_t$ limits

Joshua Davies, Go Mishima, Matthias Steinhauser

摘要:

我们计算的下一个领先的顺序虚拟修正的部分子截面的过程$gg\to ZH$,在高能量和大$m_t$限制。我们使用Padé近似来增加$m_t^2/s$、$m_t^2/t$和$m_t^2/u$中高能展开的收敛半径,并表明可以在相当接近顶夸克对阈值的能量下获得精确的结果。我们目前的结果为形状因子和下一个领先的顺序虚拟截面。

英文摘要:

We compute the next-to-leading order virtual corrections to the partonic cross-section of the process $gg\to ZH$, in the high-energy and large-$m_t$ limits. We use Padé approximants to increase the radius of convergence of the high-energy expansion in $m_t^2/s$, $m_t^2/t$ and $m_t^2/u$ and show that precise results can be obtained down to energies which are fairly close to the top quark pair threshold. We present results both for the form factors and the next-to-leading order virtual cross-section.

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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