Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run by Chatrchyan, S, Khachatryan, V, Sirunyan, A, Adam, W, Arnold, B, Bergauer, H, Bergauer, T, Dragicevic, M, Eichberger, M, Ero, J, Friedl, M, Fruehwirth, R, Ghete, V, Hammer, J, Haensel, S, Hoch, M, Hoermann, N, Hrubec, J, Jeitler, M, Kasieczka, G, Kastner, K, Krammer, M, Liko, D, de Abril, I, Mikulec, I

Aligning the CMS muon chambers with the muon alignment system during an extended cosmic ray run by Chatrchyan, S, Khachatryan, V, Sirunyan, A, Adam, W, Arnold, B, Bergauer, H, Bergauer, T, Dragicevic, M, Eichberger, M, Erö, J, Friedl, M, Frühwirth, R, Ghete, V, Hammer, J, Hansel, S, Hoch, M, Hörmann, N, Hrubec, J, Jeitler, M, Kasieczka, G, Kastner, K, Krammer, M, Liko, D, De Magrans Abril, I, Mikulec, I

“…The alignment system for the muon spectrometer of the CMS detector comprises three independent subsystems of optical and analog position sensors. It aligns muon chambers with respect to each other and to the central silicon tracker. …”

Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays by Alver, Burak Han, Bauer, Gerry P, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., D'Enterria, David, Everaerts, Pieter Bruno Bart, Gomez-Ceballos, Guillelmo, Hahn, Kristian Allan, Harris, Philip Coleman, Jaditz, Stephen Hunter, Kim, Y., Klute, Markus, Lee, Y.-J., Li, Wei, Loizides, Constantinos, Ma, T., Miller, M., Paus, Christoph M. E., Roland, Christof E, Roland, Gunther M, Rudolph, Matthew Scott, Stephans, George S. F., Sumorok, Konstanty C, Sung, K., Vaurynovich, S., Wenger, Edward Allen, Wyslouch, Boleslaw, Xie, S., Yilmaz, Yetkin, Yoon, A. S., CMS Collaboration, Nahn, Steven

“…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.…”
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Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons by Alver, Burak Han, Bauer, Gerry P, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., D'Enterria, David, Everaerts, Pieter Bruno Bart, Gomez-Ceballos, Guillelmo, Hahn, Kristian Allan, Harris, Philip Coleman, Jaditz, Stephen Hunter, Kim, Y., Klute, Markus, Lee, Y.-J., Li, W., Loizides, C., Ma, T., Miller, M., Nahn, S., Paus, C., Roland, C., Roland, G., Rudolph, M., Stephans, G., Sumorok, Konstanty C, Sung, K., Vaurynovich, Siarhei S., Wenger, Edward Allen, Wyslouch, Boleslaw, Xie, S., Yilmaz, Yetkin, Yoon, A.S., CMS Collaboration

“…Cosmic ray muons were detected in the muon chambers and used to trigger the readout of all CMS sub-detectors. …”
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Commissioning and performance of the CMS silicon strip tracker with cosmic ray muons by Chatrchyan, S, Khachatryan, V, Sirunyan, A, Adam, W, Arnold, B, Bergauer, H, Bergauer, T, Dragicevic, M, Eichberger, M, Erö, J, Friedl, M, Frühwirth, R, Ghete, V, Hammer, J, Hansel, S, Hoch, M, Hörmann, N, Hrubec, J, Jeitler, M, Kasieczka, G, Kastner, K, Krammer, M, Liko, D, De Magrans Abril, I, Mikulec, I

“…Cosmic ray muons were detected in the muon chambers and used to trigger the readout of all CMS sub-detectors. …”

Precise mapping of the magnetic field in the CMS barrel yoke using cosmic rays by Chatrchyan, S, Khachatryan, V, Sirunyan, A, Adam, W, Arnold, B, Bergauer, H, Bergauer, T, Dragicevic, M, Eichberger, M, Erö, J, Friedl, M, Frühwirth, R, Ghete, V, Hammer, J, Hansel, S, Hoch, M, Hörmann, N, Hrubec, J, Jeitler, M, Kasieczka, G, Kastner, K, Krammer, M, Liko, D, De Magrans Abril, I, Mikulec, I

“…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. © 2010 IOP Publishing Ltd and SISSA.…”

Study of B0 → J/ψK(*)0π+π- decays with the collider detector at Fermilab by Affolder, T, Akimoto, H, Akopian, A, Albrow, MG, Amaral, P, Amidei, D, Anikeev, K, Antos, J, Apollinari, G, Arisawa, T, Artikov, A, Asakawa, T, Ashmanskas, W, Azfar, F, Azzi-Bacchetta, P, Bacchetta, N, Bachacou, H, Bailey, S, de Barbaro, P, Barbaro-Galtieri, A, Barnes, V, Barnett, B, Baroiant, S, Barone, M, Bauer, G

“…Events with two separate sets of atleast three linked hits in the muon chambers. The second level required drift chamber tracks with pT > 2.0 GeV/c. …”

The performance of the CMS muon detector in proton-proton collisions at √s = 7 TeV at the LHC by Apyan, Aram, Bauer, Gerry P, Bendavid, Joshua L., Busza, Wit, Butz, Erik M., Cali, Ivan Amos, Chan, M., Dutta, Valentina, Gomez-Ceballos, Guillelmo, Goncharov, Maxim, Kim, Y., Klute, Markus, Krajczar, Krisztian F., Levin, A., Luckey Jr, P David, Ma, T., Paus, Christoph M. E., Ralph, Duncan Kelley, Roland, Christof E, Roland, Gunther M, Rudolph, Matthew Scott, Stephans, George S. F., Sumorok, Konstanty C, Sung, K., Velicanu, Dragos Alexandru, Wenger, Edward Allen, Wolf, Roger, Wyslouch, Boleslaw, Yang, M., Yilmaz, Y., Yoon, A. S., Zanetti, Marco, Wyslouch, Victoria, Nahn, Steven, Stoeckli, Fabian

“…The efficiency for reconstructing hits and track segments originating from muons traversing the muon chambers was in the range 95–98%. The CSC and DT systems provided muon track segments for the CMS trigger with over 96% efficiency, and identified the correct triggering bunch crossing in over 99.5% of such events. …”
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Measurement of the background in the CMS muon detector in 𝑝𝑝 -collisions at √𝑠 =13 TeV by Tytgat, M., Muhammad, A., De Lentdecker, G., Jaramillo, J., Moureaux, L., Pétré, L., Yang, Y., Rendón, C., Gokbulut, G., Hong, Y., Samalan, A., Alves, G. A., Marujo da Silva, F., Alves Coelho, E., Barroso Ferreira Filho, M., Da Costa, E. M., De Jesus Damiao, D., Ferreira, B. C., Fonseca De Souza, S., Mota Amarilo, K.

“…Charged hadrons leaving the calorimeters produce energy deposits in the muon chambers. In addition, high-energy particles interacting in the hadron calorimeter and forward shielding elements generate thermal neutrons, which leak out of the calorimeter and shielding structures, filling the CMS cavern. …”
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Electron reconstruction in simulated Pb+Pb events in CMS by Chen, Yi, S.B. Massachusetts Institute of Technology

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