CERN Accelerating science

CMS Physics Analysis Summaries
Report number	CMS-PAS-MUO-10-002
Title	Performance of muon identification in pp collisions at s**0.5 = 7 TeV
Corporate author(s)	CMS Collaboration
Collaboration	CMS Collaboration
Imprint	2010
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; CMS
Abstract	The performance of muon identification in CMS has been studied on a sample of muons corresponding to an integrated luminosity of up to 84 nb$^{-1}$ collected in pp collisions at $\sqrt{s}$ = 7 TeV at the LHC. Measured distributions of basic muon-track quantities are well reproduced by the Monte Carlo simulation. Efficiencies of various high-level trigger, identification, and reconstruction algorithms have been measured in the muon momentum range up to about 15 GeV/$c$, and found to agree typically within 5-10\% of expectations. The probability to mis-identify kaons or pions as muons due to their decay in-flight agrees with predictions from simulation. The punch-through probability for protons with momentum between 3 and 10 GeV/$c$ was measured to be (5.3 $\pm$ 0.8 (stat.))$\cdot 10^{-4}$, in agreement with expectations.
Other source	Inspire
Email contact: cms-pog-conveners-muons@cern.ch  Fulltext in PDF  Figure_001-a  Figure_001-b  Figure_002-a  Figure_002-b  Figure_002-c  Figure_004-a  Figure_004-b  Figure_004-c  Figure_004-d  Figure_004-e  Figure_004-f  Figure_004-g  Figure_004-h  Figure_004-i  Figure_004-j  Figure_004-k  Figure_004-l  Figure_004-m  Figure_004-n  Figure_006-a  Figure_006-b  Figure_006-c  Figure_006-d  Figure_006-e  Figure_006-f  Figure_006-g  Figure_006-h  Figure_006-i  Figure_007-a  Figure_007-b  Figure_007-c  Figure_007-d  Figure_007-e  Figure_007-f  Figure_007-g  Figure_007-h  Figure_007-i  Figure_008-a  Figure_008-b  Figure_008-c  Figure_008-d  Figure_008-e  Figure_008-f  Figure_008-g  Figure_008-h  Figure_008-i  Figure_009-a  Figure_009-b  Figure_010-a  Figure_010-b  Figure_010-c  Figure_010-d  Figure_011-a  Figure_011-b  Figure_011-c  Figure_011-d  Figure_012-a  Figure_012-b  Figure_012-c  Figure_012-d  Figure_013-a  Figure_013-b  Figure_013-c  Figure_013-d  Figure_015-a  Figure_015-b  Figure_015-c  Figure_015-d  Figure_015-e  Figure_015-f  Figure_015-g  Figure_015-h  Figure_016-a  Figure_016-b  Figure_016-c  Figure_016-d  Figure_018-a  Figure_018-b  Figure_018-c  Figure_018-d  Additional information for the analysis (restricted access)