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arXiv 1409.5301hep-ph
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与底夸克有关的希格斯粒子产生

Higgs production in association with bottom quarks

M. Wiesemann, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, P. Torrielli

摘要:

我们研究了强子碰撞中与底夸克有关的希格斯玻色子玻色子的产生,并提出了与13 TeV LHC有关的唯象预言。我们的结果是准确的,以次领先的顺序在QCD,并匹配到部分子簇射通过MC@NLO方法,因此,他们是完全微分和基于未加权的事件,我们淋浴使用Herwig++和Pythia 8。我们进行计算的四味和五味计划,其结果,我们广泛地比较独家观测值的水平。在Higgs横动量的情况下,我们也考虑了解析计算的截面达到NNLO+NNLL精度。此外,我们还在${\cal O}(α_S^3)$上分析了$b\bar{b}H$和胶子融合产生模式之间的干扰效应。

英文摘要:

We study the production of a Higgs boson in association with bottom quarks in hadronic collisions, and present phenomenological predictions relevant to the 13 TeV LHC. Our results are accurate to the next-to-leading order in QCD, and matched to parton showers through the MC@NLO method; thus, they are fully differential and based on unweighted events, which we shower by using both Herwig++ and Pythia8. We perform the computation in both the four-flavour and the five-flavour schemes, whose results we compare extensively at the level of exclusive observables. In the case of the Higgs transverse momentum, we also consider the analytically-resummed cross section up to the NNLO+NNLL accuracy. In addition, we analyse at ${\cal O}(α_S^3)$ the effects of the interference between the $b\bar{b}H$ and gluon-fusion production modes.

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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