Abstract
The powerful muon and tracker systems of the CMS detector together with dedicated reconstruction software allow precise and efficient measurement of muon tracks originating from proton-proton collisions. The standard muon reconstruction algorithms, however, are inadequate to deal with muons that do not originate from collisions. This note discusses the design, implementation, and performance results of a dedicated cosmic muon track reconstruction algorithm, which features pattern recognition optimized for muons that are not coming from the interaction point, i.e., cosmic muons and beam-halo muons. To evaluate the performance of the new algorithm, data taken during Cosmic Challenge phases I and II were studied and compared with simulated cosmic data. In addition, a variety of more general topologies of cosmic muons and beam-halo muons were studied using simulated data to demonstrate some key features of the new algorithm.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
CMS Collaboration, Technical proposal, CERN/LHCC 94–38
Paticle Data Group, W.M. Yao et al., J. Phys. G 33, 1 (2006)
CMS Collaboration, CMS NOTE 2007/005
V. Drollinger, CMS NOTE 2005/012
P. Biallass et al., CMS NOTE 2007/024
N. Amapane et al., CMS NOTE 2007/034
CMS Collaboration, CMS Physics TDR, vol. 1, CERN/LHCC 2006-001
E. Barberis et al., CMS NOTE 2006/012
R. Frühwirth, Nucl. Instrum. Methods A 262, 444 (1987)
D. Benedetti et al., CMS NOTE 2007/030
IGUANA Webpage. http://iguana.web.cern.ch/iguana
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
Liu, C., Neumeister, N., Amapane, N. et al. Reconstruction of cosmic and beam-halo muons with the CMS detector. Eur. Phys. J. C 56, 449–460 (2008). https://doi.org/10.1140/epjc/s10052-008-0674-7
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjc/s10052-008-0674-7