Missing transverse energy performance of the CMS detector


Chatrchyan S., Khachatryan V., Sirunyan A. M. , Tumasyan A., Adam W., Bergauer T., ...More

JOURNAL OF INSTRUMENTATION, vol.6, 2011 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 6
  • Publication Date: 2011
  • Doi Number: 10.1088/1748-0221/6/09/p09001
  • Journal Name: JOURNAL OF INSTRUMENTATION
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Keywords: Performance of High Energy Physics detectors, Missing Transverse Energy studies, Calorimeter methods, Detector modelling and simulations (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)

Abstract

During 2010 the LHC delivered pp collisions with a centre-of-mass energy of 7 TeV. paper, the results of comprehensive studies of missing transverse energy as measured by the CMS detector are presented. The results cover the measurements of the scale and resolution for missing transverse energy, and the effects of multiple pp interactions within the same bunch crossings on the scale and resolution. Anomalous measurements of missing transverse energy are studied, and algorithms for their identification are described. The performance of several reconstruction algorithms for calculating missing transverse energy are compared. An algorithm, called missing-transverse-energy significance, which estimates the compatibility of the reconstructed missing transverse energy with zero, is described, and its performance is demonstrated.