Apresyan, A. and Bornheim, A. and Bunn, J. and Chiorboli, M. and Gataullin, M. and Kcira, D. and Litvine, V. and Ma, Y. and Newman, H. B. and Rogan, C. and Timciuk, V. and Veverka, J. and Wilkinson, R. and Yang, Y. and Zhang, L. and Zhu, K. and Zhu, R. Y. (2010) Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays. Journal of Instrumentation, 5 . Art. No. T03021. ISSN 1748-0221 http://resolver.caltech.edu/CaltechAUTHORS:20110125-122231561
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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.|
|Subject Keywords:||Muon spectrometers; Large detector systems for particle and astroparticle physics|
|Classification Code:||PACS: 95.55.Vj; 96.50.sb; 29.40.Gx|
|Official Citation:||CMS Collaboration 2010 JINST 5 T03021 doi: 10.1088/1748-0221/5/03/T03021|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||26 Jan 2011 23:48|
|Last Modified:||25 Feb 2013 22:23|
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