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Alignment of the CMS silicon strip tracker during stand-alone commissioning

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W Adam1, T Bergauer1, M Dragicevic1, M Friedl1, R Frühwirth1, S Hänsel1, J Hrubec1, M Krammer1, M Oberegger1, M Pernicka1, S Schmid1, R Stark1, H Steininger1, D Uhl1, W Waltenberger1, E Widl1, P Van Mechelen2, M Cardaci2, W Beaumont2, E de Langhe2, E A de Wolf2, E Delmeire2, M Hashemi2, O Bouhali3, O Charaf3, B Clerbaux3, J-P Dewulf3, S Elgammal3, G Hammad3, G de Lentdecker3, P Marage3, C Vander Velde3, P Vanlaer3, J Wickens3, V Adler4, O Devroede4, S De Weirdt4, J D'Hondt4, R Goorens4, J Heyninck4, J Maes4, M Mozer4, S Tavernier4, L Van Lancker4, P Van Mulders4, I Villella4, C Wastiels4, J-L Bonnet5, G Bruno5, B De Callatay5, B Florins5, A Giammanco5, G Gregoire5, Th Keutgen5, D Kcira5, V Lemaitre5, D Michotte5, O Militaru5, K Piotrzkowski5, L Quertermont5, V Roberfroid5, X Rouby5, D Teyssier5, E Daubie6, E Anttila7, S Czellar7, P Engström7, J Härkönen7, V Karimäki7, J Kostesmaa7, A Kuronen7, T Lampén7, T Lindén7, P-R Luukka7, T Mäenää7, S Michal7, E Tuominen7, J Tuominiemi7, M Ageron8, G Baulieu8, A Bonnevaux8, G Boudoul8, E Chabanat8, E Chabert8, R Chierici8, D Contardo8, R Della Negra8, T Dupasquier8, G Gelin8, N Giraud8, G Guillot8, N Estre8, R Haroutunian8, N Lumb8, S Perries8, F Schirra8, B Trocme8, S Vanzetto8, J-L Agram9, R Blaes9, F Drouhin9, J-P Ernenwein9, J-C Fontaine9, J-D Berst10, J-M Brom10, F Didierjean10, U Goerlach10, P Graehling10, L Gross10, J Hosselet10, P Juillot10, A Lounis10, C Maazouzi10, C Olivetto10, R Strub10, P Van Hove10, G Anagnostou11, R Brauer11, H Esser11, L Feld11, W Karpinski11, K Klein11, C Kukulies11, J Olzem11, A Ostapchuk11, D Pandoulas11, G Pierschel11, F Raupach11, S Schael11, G Schwering11, D Sprenger11, M Thomas11, M Weber11, B Wittmer11, M Wlochal11, F Beissel12, E Bock12, G Flugge12, C Gillissen12, T Hermanns12, D Heydhausen12, D Jahn12, G Kaussen12, A Linn12, L Perchalla12, M Poettgens12, O Pooth12, A Stahl12, M H Zoeller12, P Buhmann13, E Butz13, G Flucke13, R Hamdorf13, J Hauk13, R Klanner13, U Pein13, P Schleper13, G Steinbrück13, P Blüm14, W De Boer14, A Dierlamm14, G Dirkes14, M Fahrer14, M Frey14, A Furgeri14, F Hartmann14, S Heier14, K-H Hoffmann14, J Kaminski14, B Ledermann14, T Liamsuwan14, S Müller14, Th Müller14, F-P Schilling14, H-J Simonis14, P Steck14, V Zhukov14, P Cariola15, G De Robertis15, R Ferorelli15, L Fiore15, M Preda15, G Sala15, L Silvestris15, P Tempesta15, G Zito15, D Creanza16, N De Filippis16, M De Palma16, D Giordano16, G Maggi16, N Manna16, S My16, G Selvaggi16, S Albergo17, M Chiorboli17, S Costa17, M Galanti17, N Giudice17, N Guardone17, F Noto17, R Potenza17, M A Saizu17, V Sparti17, C Sutera17, A Tricomi17, C Tuvè17, M Brianzi18, C Civinini18, F Maletta18, F Manolescu18, M Meschini18, S Paoletti18, G Sguazzoni18, B Broccolo19, V Ciulli19, R D'Alessandro E Focardi19, S Frosali19, C Genta19, G Landi19, P Lenzi19, A Macchiolo19, N Magini19, G Parrini19, E Scarlini19, G Cerati20, P Azzi21, N Bacchetta21, A Candelori21, T Dorigo21, A Kaminsky21, S Karaevski21, V Khomenkov21, S Reznikov21, M Tessaro21, D Bisello22, M De Mattia22, P Giubilato22, M Loreti22, S Mattiazzo22, M Nigro22, A Paccagnella22, D Pantano22, N Pozzobon22, M Tosi22, G M Bilei23, B Checcucci23, L Fanò23, L Servoli23, F Ambroglini24, E Babucci24, D Benedetti24, M Biasini24, B Caponeri24, R Covarelli24, M Giorgi24, P Lariccia24, G Mantovani24, M Marcantonini24, V Postolache24, A Santocchia24, D Spiga24, G Bagliesi25, G Balestri25, L Berretta25, S Bianucci25, T Boccali25, F Bosi25, F Bracci25, R Castaldi25, M Ceccanti25, R Cecchi25, C Cerri25, A S Cucoanes25, R Dell'Orso25, D Dobur25, S Dutta25, A Giassi25, S Giusti25, D Kartashov25, A Kraan25, T Lomtadze25, G A Lungu25, G Magazzù25, P Mammini25, F Mariani25, G Martinelli25, A Moggi25, F Palla25, F Palmonari25, G Petragnani25, A Profeti25, F Raffaelli25, D Rizzi25, G Sanguinetti25, S Sarkar25, D Sentenac25, A T Serban25, A Slav25, A Soldani25, P Spagnolo25, R Tenchini25, S Tolaini25, A Venturi25, P G Verdini25, M Vos25, L Zaccarelli25, C Avanzini26, A Basti26, L Benucci26, A Bocci26, U Cazzola26, F Fiori26, S Linari26, M Massa26, A Messineo26, G Segneri26, G Tonelli26, P Azzurri27, J Bernardini27, L Borrello27, F Calzolari27, L Foà27, S Gennai27, F Ligabue27, G Petrucciani27, A Rizzi27, Z Yang27, F Benotto28, N Demaria28, F Dumitrache28, R Farano28, M A Borgia29, R Castello29, M Costa29, E Migliore29, A Romero29, D Abbaneo30, M Abbas30, I Ahmed30, I Akhtar30, E Albert30, C Bloch30, H Breuker30, S Butt30, O Buchmuller30, A Cattai30, C Delaere30, M Delattre30, L M Edera30, P Engstrom30, M Eppard30, M Gateau30, K Gill30, A-S Giolo-Nicollerat30, R Grabit30, A Honma30, M Huhtinen30, K Kloukinas30, J Kortesmaa30, L J Kottelat30, A Kuronen30, N Leonardo30, C Ljuslin30, M Mannelli30, L Masetti30, A Marchioro30, S Mersi30, S Michal30, L Mirabito30, J Muffat-Joly30, A Onnela30, C Paillard30, I Pal30, J F Pernot30, P Petagna30, P Petit30, C Piccut30, M Pioppi30, H Postema30, R Ranieri30, D Ricci30, G Rolandi30, F Ronga30, C Sigaud30, A Syed30, P Siegrist30, P Tropea30, J Troska30, A Tsirou30, M Vander Donckt30, F Vasey30, E Alagoz31, C Amsler31, V Chiochia31, C Regenfus31, P Robmann31, J Rochet31, T Rommerskirchen31, A Schmidt31, S Steiner31, L Wilke31, I Church32, J Cole32, J Coughlan32, A Gay32, S Taghavi32, I Tomalin32, R Bainbridge33, N Cripps33, J Fulcher33, G Hall33, M Noy33, M Pesaresi33, V Radicci33, D M Raymond33, P Sharp33, M Stoye33, M Wingham33, O Zorba33, I Goitom34, P R Hobson34, I Reid34, L Teodorescu34, G Hanson35, G-Y Jeng35, H Liu35, G Pasztor35, A Satpathy35, R Stringer35, B Mangano36, K Affolder37, T Affolder37, A Allen37, D Barge37, S Burke37, D Callahan37, C Campagnari37, A Crook37, M D'Alfonso37, J Dietch37, J Garberson37, D Hale37, H Incandela37, J Incandela37, S Jaditz37, P Kalavase37, S Kreyer37, S Kyre37, J Lamb37, C Mc Guinness37, C Mills37, H Nguyen37, M Nikolic37, S Lowette37, F Rebassoo37, J Ribnik37, J Richman37, N Rubinstein37, S Sanhueza37, Y Shah37, L Simms37, D Staszak37, J Stoner37, D Stuart37, S Swain37, J-R Vlimant37, D White37, K A Ulmer38, S R Wagner38, L Bagby39, P C Bhat39, K Burkett39, S Cihangir39, O Gutsche39, H Jensen39, M Johnson39, N Luzhetskiy39, D Mason39, T Miao39, S Moccia39, C Noeding39, A Ronzhin39, E Skup39, W J Spalding39, L Spiegel39, S Tkaczyk39, F Yumiceva39, A Zatserklyaniy39, E Zerev39, I Anghel40, V E Bazterra40, C E Gerber40, S Khalatian40, E Shabalina40, P Baringer41, A Bean41, J Chen41, C Hinchey41, C Martin41, T Moulik41, R Robinson41, A V Gritsan42, C K Lae42, N V Tran42, P Everaerts43, K A Hahn43, P Harris43, S Nahn43, M Rudolph43, K Sung43, B Betchart44, R Demina44, Y Gotra44, S Korjenevski44, D Miner44, D Orbaker44, L Christofek45, R Hooper45, G Landsberg45, D Nguyen45, M Narain45, T Speer45 and K V Tsang45

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The results of the CMS tracker alignment analysis are presented using the data from cosmic tracks, optical survey information, and the laser alignment system at the Tracker Integration Facility at CERN. During several months of operation in the spring and summer of 2007, about five million cosmic track events were collected with a partially active CMS Tracker. This allowed us to perform first alignment of the active silicon modules with the cosmic tracks using three different statistical approaches; validate the survey and laser alignment system performance; and test the stability of Tracker structures under various stresses and temperatures ranging from +15 °C to −15 °C. Comparison with simulation shows that the achieved alignment precision in the barrel part of the tracker leads to residual distributions similar to those obtained with a random misalignment of 50 (80) μm RMS in the outer (inner) part of the barrel.

Keywords

Particle tracking detectors (Solid-state detectors)

Analysis and statistical methods

Particle tracking detectors

Pattern recognition, cluster finding, calibration and fitting methods

PACS

29.40.Wk Solid-state detectors

29.40.Gx Tracking and position-sensitive detectors

Subjects

Accelerators, beams and electromagnetism

Nuclear physics

Instrumentation and measurement

Particle physics and field theory

Dates

Issue 07 (July 2009)

Received 7 April 2009, accepted for publication 7 July 2009

Published 30 July 2009



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