Performance of Missing Transverse Momentum Reconstruction Algorithms in Proton-Proton Collisions at √ s = 8 TeV with the CMS Detector
Performance of Missing Transverse Momentum Reconstruction Algorithms in Proton-Proton Collisions at √ s = 8 TeV with the CMS Detector
复制标题
使用 CMS 探测器在 √ s = 8 TeV 的质子-质子碰撞中缺失横向动量重建算法的性能
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
D. Wade
中科院分区：
文献类型：
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作者：
D. Taggart;S. Browne;P. Halligan;D. Wade
丢失的横向动量重建算法的性能使用CMS探测器收集的8 TeV pp碰撞数据，对应于高达12.2 ± 0.5 fb−1的积分光度。研究了具有异常缺失横动量的事件，并给出了用于识别和去除这些事件的算法的性能。缺失的横向动量的规模和分辨率，包括多个pp相互作用的影响，在相同的，较早的，和较晚的束交叉（堆积相互作用），测量使用事件与一个确定的Z玻色子或孤立的光子。它们一般都很好地描述了模拟。先进的失踪的横向动量重建算法也专门开发，以减轻大量的堆积相互作用的影响，失踪的横向动量分辨率。使用这些先进的算法，丢失的横向动量分辨率的依赖堆积相互作用显着减少。
The performance of missing transverse momentum reconstruction algorithms is presented using 8 TeV pp collision data collected with the CMS detector, corresponding to an integrated luminosity up to 12.2 ± 0.5 fb−1. Events with anomalous missing transverse momentum are studied, and the performance of algorithms used to identify and remove those events is presented. The scale and resolution for missing transverse momentum, including the effects of multiple pp interactions in the same, earlier, and later bunch crossings (pileup interactions), are measured using events with an identified Z boson or isolated photon. They are in general well described by the simulation. Advanced missing transverse momentum reconstruction algorithms are also developed specifically to mitigate the effects of large numbers of pileup interactions on missing transverse momentum resolution. Using these advanced algorithms, the dependence of the missing transverse momentum resolution on pileup interactions is reduced significantly.
影响因子：
4.4
作者：
Chatrchyan, S.;Khachatryan, V.;Wenman, D.
通讯作者：
Wenman, D.