Alignment of the CMS muon system with cosmic-ray and beam-halo muons
Abstract
The CMS muon system has been aligned using cosmic-ray muons collected in 2008 and beam-halo muons from the 2008 LHC circulating beam tests. After alignment, the resolution of the most sensitive coordinate is 80 microns for the relative positions of superlayers in the same barrel chamber and 270 microns for the relative positions of endcap chambers in the same ring structure. The resolution on the position of the central barrel chambers relative to the tracker is comprised between two extreme estimates, 200 and 700 microns, provided by two complementary studies. With minor modifications, the alignment procedures can be applied using muons from LHC collisions, leading to additional significant improvements.
Additional Information
© 2010 IOP Publishing Ltd and SISSA. Received: November 23, 2009; Accepted: February 18, 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.Attached Files
Published - 1748-0221_5_03_T03020.pdf
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Additional details
- Eprint ID
- 21941
- Resolver ID
- CaltechAUTHORS:20110131-160827183
- FMSR (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- MES (Bulgaria)
- CERN (China)
- CAS (China)
- MoST (China)
- NSFC (China)
- COLCIEN-CIAS (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)
- SEP (Mexico)
- UASLP-FAI (Mexico)
- PAEC (Pakistan)
- SCSR (Poland)
- FCT (Portugal)
- JINR (Armenia)
- JINR (Belarus)
- JINR (Georgia)
- JINR (Ukraine)
- JINR (Uzbekistan)
- MST (Russia)
- MAE (Russia)
- MSTDS (Serbia)
- MICINN (Spain)
- CPAN (Spain)
- Swiss Funding Agencies (Switzerland)
- NSC (Taipei)
- TUBITAK (Turkey)
- TAEK (Turkey)
- STFC (United Kingdom)
- Department of Energy (DOE)
- NSF
- European Union
- Leventis Foundation
- A. P. Sloan Foundation
- Alexander von Humboldt Foundation
- Created
-
2011-02-01Created from EPrint's datestamp field
- Updated
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2022-07-12Created from EPrint's last_modified field