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arXiv 1805.09855hep-ph
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MINLO T型通道单顶加喷嘴

MINLO t-channel single-top plus jet

Stefano Carrazza, Rikkert Frederix, Keith Hamilton, Giulia Zanderighi

摘要:

我们提出了一个次领先的顺序精确模拟的t通道单顶加喷流生产匹配部分子阵雨通过POWHEG方法。基于模拟的计算增强了多尺度改进的NLO(MINLO)方法的过程特定的实现,使其通过相空间给出物理预测,包括t通道单顶过程的射流未解决的区域。我们进一步描述了MINLO Sudakov形状因子的调谐过程,使用人工神经网络拟合其指数中的第一子前导项的系数。后者的调整,实施作为一个简单的事件的事件重新加权,使MINLO模拟NLO准确的t通道单顶观测,除了那些类似的单顶加喷流过程。

英文摘要:

We present a next-to-leading order accurate simulation of t-channel single-top plus jet production matched to parton showers via the POWHEG method. The calculation underlying the simulation is enhanced with a process-specific implementation of the multi-scale improved NLO (MINLO) method, such that it gives physical predictions all through phase space, including regions where the jet additional to the t-channel single-top process is unresolved. We further describe a tuning procedure for the MINLO Sudakov form factor, fitting the coefficient of the first subleading term in its exponent using an artificial neural-network. The latter tuning, implemented as a straightforward event-by-event reweighting, renders the MINLO simulation NLO accurate for t-channel single-top observables, in addition to those of the analogous single-top plus jet process.

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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