Performance of the CMS missing transverse momentum reconstruction in pp data at ∫s = 8 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105574

Title:	Performance of the CMS missing transverse momentum reconstruction in pp data at ∫s = 8 TeV
Authors:	林宗泰;collaboration, The CMS
Contributors:	理學院物理學系
Keywords:	Algorithms;Bosons;Energy resolution;Energy use;Estimates;Instrumentation;Photons;Reconstruction
Date:	2015-02-12
Issue Date:	2026-04-23 12:38:46 (UTC+8)
Publisher:	IOP Publishing Ltd.
Abstract:	摘要： The performance of missing transverse energy reconstruction algorithms is presented using [radical]s=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and the performance of algorithms used to identify and remove these events is presented. The scale and resolution for missing transverse energy, including the effects of multiple pp interactions (pileup), are measured using events with an identified Z boson or isolated photon, and are found to be well described by the simulation. Novel missing transverse energy reconstruction algorithms developed specifically to mitigate the effects of large numbers of pileup interactions on the missing transverse energy resolution are presented. These algorithms significantly reduce the dependence of the missing transverse energy resolution on pileup interactions. Finally, an algorithm that provides an estimate of the significance of the missing transverse energy is presented, which is used to estimate the compatibility of the reconstructed missing transverse energy with a zero nominal value. 出版日期： 2015-02-12 出處： Journal of instrumentation, 2015-02, Vol.10 (2), p.P02006-P02006 資源來源： Institute of Physics Journals 識別號： ISSN: 1748-0221 識別號： EISSN: 1748-0221 識別號： DOI: 10.1088/1748-0221/10/02/P02006
Appears in Collections:	[Department of Physics] journal & Dissertation

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