Published March 19, 2010 | Version Published
Journal Article Open

Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays

Abstract

The CMS detector is designed around a large 4 T superconducting solenoid, enclosed in a 12 000-tonne steel return yoke. A detailed map of the magnetic field is required for the accurate simulation and reconstruction of physics events in the CMS detector, not only in the inner tracking region inside the solenoid but also in the large and complex structure of the steel yoke, which is instrumented with muon chambers. Using a large sample of cosmic muon events collected by CMS in 2008, the field in the steel of the barrel yoke has been determined with a precision of 3 to 8% depending on the location.

Additional Information

© 2010 IOP Publishing Ltd and SISSA. Received: November 23, 2009; accepted: January 9, 2010; published March 19, 2010. We thank the technical and administrative staff at CERN and other CMS Institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTDS (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie IEF program (European Union); the Leventis Foundation; the A. P. Sloan Foundation; and the Alexander von Humboldt Foundation.

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Additional details

Identifiers

Eprint ID
21883
Resolver ID
CaltechAUTHORS:20110125-122231561

Related works

Funding

FMSR (Austria)
FNRS (Belgium)
FWO (Belgium)
CNPq (Brazil)
CAPES (Brazil)
FAPERJ (Brazil)
FAPESP (Brazil)
MES (Bulgaria)
CERN (China)
CAS (China)
MoST (China)
NSFC (China)
COLCIENCIAS (Colombia)
MSES (Croatia)
RPF (Cyprus)
Academy of Sciences (Estonia)
NICPB (Estonia)
Academy of Finland
ME (Finland)
HIP (Finland)
CEA (France)
CNRS/IN2P3 (France)
BMBF (Germany)
DFG (Germany)
HGF (Germany)
GSRT (Greece)
OTKA (Hungary)
NKTH (Hungary)
DAE (India)
DST (India)
IPM (Iran)
SFI (Ireland)
INFN (Italy)
NRF (Korea)
LAS (Lithuania)
CINVESTAV (Mexico)
CONACYT (Mexico)
SEP (Mexico)
UASLP-FAI (Mexico)
PAEC (Pakistan)
SCSR (Poland)
FCT (Portugal)
JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan)
MST (Russia)
MAE (Russia)
MSTDS (Serbia)
MICINN (Spain)
CPAN (Spain)
Swiss Funding Agencies
NSC (Taipei)
TUBITAK (Turkey)
TAEK (Turkey)
STFC (United Kingdom)
Department of Energy (DOE)
NSF
Marie Curie Fellowship
Leventis Foundation
Alfred P. Sloan Foundation
Alexander von Humboldt Foundation

Dates

Created
2011-01-26
Created from EPrint's datestamp field
Updated
2022-07-12
Created from EPrint's last_modified field

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Caltech groups
CMS@Caltech