Performance of the CMS missing transverse momentum reconstruction in pp data at $\sqrt{s}$ = 8 TeV - INSPIRE

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Performance of the CMS missing transverse momentum reconstruction in pp data at $\sqrt{s}$ = 8 TeV

CMS

Collaboration

Nov 3, 2014

55 pages

Published in:

JINST 10 (2015) 02, P02006

Published: Feb 12, 2015

e-Print:

1411.0511 [physics.ins-det]

DOI:

10.1088/1748-0221/10/02/P02006

Report number:

CMS-JME-13-003,
CERN-PH-EP-2014-246

Experiments:

CERN-LHC-CMS

View in:

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Abstract: (IOP)

The performance of missing transverse energy reconstruction algorithms is presented using √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.

Note:

Replaced with published version. Added journal reference and DOI

Large detector-systems performance
Missing Transverse Energy studies
Performance of High Energy Physics Detectors
transverse energy: missing-energy
performance
energy resolution
CMS
p p: scattering
track data analysis
multiple scattering

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