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arXiv 0907.5158hep-phhep-ex
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顶夸克衰变中底夸克碎裂的唯象研究

A Phenomenological Study of Bottom Quark Fragmentation in Top Quark Decay

Gennaro Corcella, Federico Mescia

摘要:

顶夸克物理学是Tevatron加速器和LHC的主要研究领域之一。我们对强子对撞机上的ttbar事件进行了唯象分析,重点是依赖于顶夸克衰变中底夸克碎裂的观测量。特别地,我们研究了双轻子通道中的B轻子不变质量分布,并估计了底碎裂对顶夸克质量重建的蒙特卡罗不确定性的贡献。

英文摘要:

Top-quark physics is one of the main fields of investigation at the Tevatron accelerator and, ultimately, at the LHC. We perform a phenomenological analysis of ttbar events at hadron colliders, with a focus on observables relying on bottom-quark fragmentation in top-quark decay. In particular, we investigate the B-lepton invariant-mass distribution in the dilepton channel and give an estimate of the contribution of bottom fragmentation to the Monte Carlo uncertainty on the top-quark mass reconstruction.

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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