高能下夸克对伴随产生的希格斯玻色子作为双希格斯产生的本底
Higgs Boson plus Quark Pair Production at High Energies as di-Higgs Background
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中文总结 AI 辅助
该研究针对大型强子对撞机的双希格斯本底，首次分析胶子融合道中希格斯伴随底夸克对及硬喷注的产生，纳入夸克对重求和效应修正HEJ预测，发现重求和会改变相空间区域的QCD贡献。
中文摘要 AI 辅助
我们研究高能QCD重求和对大型强子对撞机上与双希格斯研究相关的希格斯玻色子产生过程的影响。首次专门研究了胶子融合道中，希格斯玻色子伴随底夸克对及两个额外硬喷注的产生过程，将其作为矢量玻色子融合双希格斯产生的本底。重求和会显著改变类矢量玻色子融合相空间区域的QCD贡献，表明固定阶计算高估了胶子融合本底的污染。我们还首次将夸克对重求和效应纳入现有的高能喷注（HEJ）框架，扩展了希格斯玻色子伴随喷注产生的预测。
英文摘要
We investigate the impact of high-energy QCD resummation on Higgs-boson production processes relevant for Higgs-pair studies at the Large Hadron Collider. We present the first dedicated study of Higgs boson production in association with a bottom-quark pair and two additional hard jets in the gluon-fusion channel at high energies as a background to vector-boson-fusion Higgs-pair production. The resummation can significantly modify the QCD contribution in VBF-like regions of phase space, indicating that fixed-order calculations overestimate the contamination from gluon-fusion backgrounds. We then extend existing High Energy Jets (HEJ) predictions for Higgs boson production in association with jets by including quark-pair resummation effects for the first time.
