Test beam analysis of the first CMS drift tube muon chamber

Albajar, C.; Amapane, N.; Arce, P.; Autermann, C.; Bellato, M.; Benettoni, M.; Benvenuti, A. C.; Bontenackels, M.; Caballero, J.; Cavallo, F. R.; Cerrada, M.; Cirio, R.; Colino, N.; Conti, E.; Cruz, B. De La; Corso, F. Dal; Dallavalle, G. M.; Fernández, C.; Trocóniz, J. F. de; Fouz, M. C.; Garcı́a-Abia, P.; Garcia-Raboso, Alberto; Gasparini, F.; Gasparini, U.; Giacomelli, P.; Gonella, F.; Gulmini, M.; Hebbeker, T.; Hermann, S.; Höepfner, K.; Jiménez, I. Domínguez; Josa, I.; Lacaprara, S.; Mariotti, C.; Maron, G.; Maselli, S.; Meneguzzo, A. T.; Monaco, V.; Montanari, A.; Montanari, C.; Montecassiano, F.; Navarria, F. L.; Odorici, F.; Passaseo, M.; Pegoraro, M.; Peroni, C.; Perrotta, A.; Puerta, J.; Reithler, H.; Romero, A.; Romero, L.; Ronchese, P.; Rossi, A. M.; Rovelli, T.; Sacchi, R.; Sowa, M.; Staiano, A.; Toniolo, N.; Torassa, E.; Vaniev, V.; Vanini, S.; Ventura, S.; Villanueva, Carlos; Willmott, C.; Zotto, P.; Zumerle, G.

doi:10.1016/j.nima.2004.01.080

“…It should be noted that in the MB1 chambers of wheels +2 and −2, Phase min is different from that in the other MB1 chambers. This is an effect of the drift velocity in these chambers, which is different from the others due to the stray magnetic field, as already observed in previous measurements [16,17]. No dependence of Phase min on the track incidence angle was observed in the range of −25 to +25 degrees, corresponding to the angular interval expected for high transverse momentum muons produced at LHC.…”

Section: Dt Local Trigger Efficiency As a Function Of Time And Of Closupporting

confidence: 57%

Fine synchronization of the CMS muon drift-tube local trigger using cosmic rays

Chatrchyan¹,

Khachatryan²,

Sirunyan³

et al. 2010

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The CMS experiment uses self-triggering arrays of drift tubes in the barrel muon trigger to perform the identification of the correct bunch crossing. The identification is unique only if the trigger chain is correctly synchronized. In this paper, the synchronization performed during an extended cosmic ray run is described and the results are reported. The random arrival time of cosmic ray muons allowed several synchronization aspects to be studied and a simple method for the fine synchronization of the Drift Tube Local Trigger at LHC to be developed.

show abstract

“…It should be noted that in the MB1 chambers of wheels +2 and −2, Phase min is different from that in the other MB1 chambers. This is an effect of the drift velocity in these chambers, which is different from the others due to the stray magnetic field, as already observed in previous measurements [16,17].…”

Section: Dt Local Trigger Efficiency As a Function Of Time And Of Clo...mentioning

confidence: 52%

Fine Synchronization of the CMS Muon Drift-Tube Local Trigger using Cosmic Rays

2009

Preprint

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The CMS experiment uses self-triggering arrays of drift tubes in the barrel muon trigger to perform the identification of the correct bunch crossing. The identification is unique only if the trigger chain is correctly synchronized. In this paper, the synchronization performed during an extended cosmic ray run is described and the results are reported. The random arrival time of cosmic ray muons allowed several synchronization aspects to be studied and a simple method for the fine synchronization of the Drift Tube Local Trigger at LHC to be developed.

show abstract

“…Besides the dedicated test beam runs taken on prototypes and on final detectors prior and during chamber construction [4][5][6][7][8], chamber commissioning was performed through the following phases:…”

Section: Detector Commissioningmentioning

confidence: 99%