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arXiv 1312.4535hep-phhep-ex
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在喷气仓中组合恢复的希格斯预测

Combining Resummed Higgs Predictions Across Jet Bins

Radja Boughezal, Xiaohui Liu, Frank Petriello, Frank J. Tackmann, Jonathan R. Walsh

摘要:

实验分析经常使用射流分箱来区分不同的运动机制和背景过程的单独贡献。为了准确地模拟这些测量中的理论不确定性,需要对喷射箱进行一致的描述。我们提出了一个完整的框架相结合的生产过程中,在不同的独家喷气箱,专注于希格斯生产胶子融合为例的cummed结果。我们将Higgs + 1喷流截面的再确认扩展到具有挑战性的低横向动量区域,大大降低了不确定性。我们对Higgs + 0-喷流和Higgs + 1-喷流的截面进行了联合预测和修正,并给出了一个改进的理论协方差矩阵用于实验研究。我们估计,在希格斯到WW分析的信号强度的相关理论的不确定性减少了近2倍的电流值相比。

英文摘要:

Experimental analyses often use jet binning to distinguish between different kinematic regimes and separate contributions from background processes. To accurately model theoretical uncertainties in these measurements, a consistent description of the jet bins is required. We present a complete framework for the combination of resummed results for production processes in different exclusive jet bins, focusing on Higgs production in gluon fusion as an example. We extend the resummation of the Higgs + 1-jet cross section into the challenging low transverse momentum region, lowering the uncertainties considerably. We provide combined predictions with resummation for cross sections in the Higgs + 0-jet and Higgs + 1-jet bins, and give an improved theory covariance matrix for use in experimental studies. We estimate that the relevant theoretical uncertainties on the signal strength in the Higgs to WW analysis are reduced by nearly a factor of 2 compared to the current value.

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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